--- This file has been generated by scripts/build_db.py. DO NOT EDIT !

INSERT INTO "grid_transformation" VALUES('EPSG','1068','Guam 1963 to NAD83(HARN) (1)','NADCON method which expects longitudes positive west; EPSG GeogCRSs Guam 1963 and NAD83(HARN) (codes 4675 and 4152) have longitudes positive east. Can be used as approximation for tfm between Guam 1963 and WGS 84 - see tfm code 1069.','Geodetic survey. Accuracy 3 m in each component, 1 sigma.','EPSG','9613','NADCON','EPSG','4675','EPSG','4152','EPSG','3255',5.0,'EPSG','8657','Latitude difference file','guhpgn.las','EPSG','8658','Longitude difference file','guhpgn.los',NULL,NULL,'NGS-Gum',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1069','Guam 1963 to WGS 84 (2)','Parameter files are from Guam 1963 to NAD83(HARN) (1) (code 1068), but for many purposes NAD83(HARN) can be considered to be coincident with WGS 84 within the accuracy of the transformation.','Accuracy 5m.','EPSG','9613','NADCON','EPSG','4675','EPSG','4326','EPSG','3255',5.0,'EPSG','8657','Latitude difference file','guhpgn.las','EPSG','8658','Longitude difference file','guhpgn.los',NULL,NULL,'EPSG-Gum',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1241','NAD27 to NAD83 (1)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRS NAD27 (code 4267) and NAD83 (code 4269) have longitudes positive east.','Accuracy at 67% confidence level is 0.15m onshore, 5m nearshore and undetermined farther offshore.','EPSG','9613','NADCON','EPSG','4267','EPSG','4269','EPSG','2374',0.15,'EPSG','8657','Latitude difference file','conus.las','EPSG','8658','Longitude difference file','conus.los',NULL,NULL,'NGS-Usa Conus',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1243','NAD27 to NAD83 (2)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRS NAD27 (code 4267) and NAD83 (code 4269) have longitudes positive east. May be used as transformation to WGS 84 - see NAD27 to WGS 84 (85) (code 15864).','Accuracy at 67% confidence level is 0.5m onshore, 5m nearshore and undetermined farther offshore.','EPSG','9613','NADCON','EPSG','4267','EPSG','4269','EPSG','2373',0.5,'EPSG','8657','Latitude difference file','alaska.las','EPSG','8658','Longitude difference file','alaska.los',NULL,NULL,'NGS-Usa AK',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1295','RGNC91-93 to NEA74 Noumea (4)','Emulation using NTv2 method of tfm NEA74 Noumea to RGNC91-93 (3) (code 15943). Note reversal of sign of parameter values in grid file.','Accuracy 5-10cm.','EPSG','9615','NTv2','EPSG','4749','EPSG','4644','EPSG','2823',0.05,'EPSG','8656','Latitude and longitude difference file','RGNC1991_NEA74Noumea.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'ESRI-Ncl 0.05m',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1312','NAD27 to NAD83 (3)','Uses NTv1 method. Replaced in Quebec by code 1462 and elsewhere in 1997 by NTv2 (transformation code 1313). Input expects longitudes to be positive west; EPSG GeogCRS NAD27 (code 4267) and NAD83 (code 4269) have longitudes positive east.','Historic record only - now superseded - see remarks.','EPSG','9614','NTv1','EPSG','4267','EPSG','4269','EPSG','1061',1.0,'EPSG','8656','Latitude and longitude difference file','NTv1_0.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'GC-Can NT1',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1313','NAD27 to NAD83 (4)','Uses NTv2 data files. Replaces NTv1 (transformation code 1312) except in Quebec. Input expects longitudes to be positive west; EPSG GeogCRS NAD27 (code 4267) and (code 4269) have longitudes positive east. May be used as tfm to WGS 84 - see code 1693.','Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4267','EPSG','4269','EPSG','4517',1.5,'EPSG','8656','Latitude and longitude difference file','NTv2_0.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'GC-Can NT2',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1451','NAD27(CGQ77) to NAD83 (1)','Replaced by NAD27(CGQ77) to NAD83 (2) (code 1575). Uses NT method which expects longitudes positive west; EPSG GeogCRSs CGQ77 (code 4609) and NAD83 (code 4269) have longitudes positive east.','Historic record only - now superseded - see remarks.','EPSG','9614','NTv1','EPSG','4609','EPSG','4269','EPSG','1368',1.0,'EPSG','8656','Latitude and longitude difference file','PQV4.DAC',NULL,NULL,NULL,NULL,NULL,NULL,'SGQ-Can QC NT1',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1454','Old Hawaiian to NAD83 (1)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs Old Hawaiian (code 4135) and NAD83 (code 4269) have longitudes positive east. NADCON data converts from Old Hawaiian Datum but makes the transformation appear to be from NAD27.','Accuracy at 67% confidence level is 0.2m.','EPSG','9613','NADCON','EPSG','4135','EPSG','4269','EPSG','1334',0.2,'EPSG','8657','Latitude difference file','hawaii.las','EPSG','8658','Longitude difference file','hawaii.los',NULL,NULL,'NGS-Usa HI',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1455','St. Lawrence Island to NAD83 (1)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs St. Lawrence (code 4136) and NAD83 (code 4269) have longitudes positive east. NADCON data converts from St. Lawrence Datum to but makes the transformation appear to be from NAD27.','Accuracy 0.5m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4136','EPSG','4269','EPSG','1332',0.5,'EPSG','8657','Latitude difference file','stlrnc.las','EPSG','8658','Longitude difference file','stlrnc.los',NULL,NULL,'NGS-Usa AK StL',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1456','St. Paul Island to NAD83 (1)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs St. Paul (code 4137) and NAD83 (code 4269) have longitudes positive east. NADCON data converts from St. Paul Datum to but makes the transformation appear to be from NAD27.','Accuracy 0.5m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4137','EPSG','4269','EPSG','1333',0.5,'EPSG','8657','Latitude difference file','stpaul.las','EPSG','8658','Longitude difference file','stpaul.los',NULL,NULL,'NGS-Usa AK StP',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1457','St. George Island to NAD83 (1)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs St. George (code 4138) and NAD83 (code 4269) have longitudes positive east. NADCON data converts from St. George Datum to but makes the transformation appear to be from NAD27.','Accuracy 0.5m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4138','EPSG','4269','EPSG','1331',0.5,'EPSG','8657','Latitude difference file','stgeorge.las','EPSG','8658','Longitude difference file','stgeorge.los',NULL,NULL,'NGS-Usa AK StG',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1461','Puerto Rico to NAD83 (1)','May be taken as approximate transformation Puerto Rico-WGS 84 - see code 15841.','Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4139','EPSG','4269','EPSG','1335',0.05,'EPSG','8657','Latitude difference file','prvi.las','EPSG','8658','Longitude difference file','prvi.los',NULL,NULL,'NGS-PRVI',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1462','NAD27 to NAD83 (5)','Densification for Quebec of code 1312. Replaced by NAD27 to NAD83 (6) (code 1573). Uses NT method which expects longitudes positive west; EPSG GeogCRSs NAD27 (code 4267) and NAD83 (code 4269) have longitudes positive east.','Historic record only - now superseded - see remarks.','EPSG','9614','NTv1','EPSG','4267','EPSG','4269','EPSG','1368',1.0,'EPSG','8656','Latitude and longitude difference file','GS2783v1.QUE',NULL,NULL,NULL,NULL,NULL,NULL,'SGQ-Can QC NT1',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1463','NAD27(76) to NAD83 (1)','Uses NT method which expects longitudes positive west; EPSG GeogCRSs NAD27(76) (code 4608) and NAD83 (code 4269) have longitudes positive east. May be taken as approximate transformation NAD27(76) to WGS 84 - see code 1690.','Not known.','EPSG','9615','NTv2','EPSG','4608','EPSG','4269','EPSG','1367',1.0,'EPSG','8656','Latitude and longitude difference file','May76v20.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'SGQ-Can Ont',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1464','AGD66 to GDA94 (5)','Replaced by AGD66 to GDA94 (10) (code 1596) and then by AGD66 to GDA94 (11) (code 1803). Input expects longitudes to be positive west; EPSG GeogCRS AGD66 (code 4202) and GDA94 (code 4283) both have longitudes positive east.','0.1m accuracy.','EPSG','9615','NTv2','EPSG','4202','EPSG','4283','EPSG','2285',0.1,'EPSG','8656','Latitude and longitude difference file','vic_0799.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OSG-Aus Vic old',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1472','ATS77 to NAD83(CSRS98) (1)','Introduced in 1999. Can be taken as an approximate transformation ATS77 to WGS 84 - see code 1688.','?','EPSG','9615','NTv2','EPSG','4122','EPSG','4140','EPSG','1447',NULL,'EPSG','8656','Latitude and longitude difference file','NB7783v2.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'GIC-Can NB',1);
INSERT INTO "grid_transformation" VALUES('EPSG','1474','NAD83 to NAD83(HARN) (1)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east. May be taken as approximate transformation NAD83-WGS 84 - see code 1717.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1372',0.05,'EPSG','8657','Latitude difference file','alhpgn.las','EPSG','8658','Longitude difference file','alhpgn.los',NULL,NULL,'NGS-Usa AL',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1475','NAD83 to NAD83(HARN) (2)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1728.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1373',0.05,'EPSG','8657','Latitude difference file','azhpgn.las','EPSG','8658','Longitude difference file','azhpgn.los',NULL,NULL,'NGS-Usa AZ',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1476','NAD83 to NAD83(HARN) (3)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1739.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','2297',0.05,'EPSG','8657','Latitude difference file','cnhpgn.las','EPSG','8658','Longitude difference file','cnhpgn.los',NULL,NULL,'NGS-Usa CA n',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1477','NAD83 to NAD83(HARN) (4)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1750.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','2298',0.05,'EPSG','8657','Latitude difference file','cshpgn.las','EPSG','8658','Longitude difference file','cshpgn.los',NULL,NULL,'NGS-Usa CA s',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1478','NAD83 to NAD83(HARN) (5)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1712.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1376',0.05,'EPSG','8657','Latitude difference file','cohpgn.las','EPSG','8658','Longitude difference file','cohpgn.los',NULL,NULL,'NGS-Usa CO',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1479','NAD83 to NAD83(HARN) (6)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1713.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1380',0.05,'EPSG','8657','Latitude difference file','gahpgn.las','EPSG','8658','Longitude difference file','gahpgn.los',NULL,NULL,'NGS-Usa GA',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1480','NAD83 to NAD83(HARN) (7)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1714.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1379',0.05,'EPSG','8657','Latitude difference file','flhpgn.las','EPSG','8658','Longitude difference file','flhpgn.los',NULL,NULL,'NGS-Usa FL',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1481','NAD83 to NAD83(HARN) (8)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east. May be taken as approximate transformation NAD83-WGS 84 - see code 1715.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','2382',0.05,'EPSG','8657','Latitude difference file','emhpgn.las','EPSG','8658','Longitude difference file','emhpgn.los',NULL,NULL,'NGS-Usa ID MT e',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1482','NAD83 to NAD83(HARN) (9)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1716.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','2383',0.05,'EPSG','8657','Latitude difference file','wmhpgn.las','EPSG','8658','Longitude difference file','wmhpgn.los',NULL,NULL,'NGS-Usa ID MT w',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1483','NAD83 to NAD83(HARN) (10)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1718.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1386',0.05,'EPSG','8657','Latitude difference file','kyhpgn.las','EPSG','8658','Longitude difference file','kyhpgn.los',NULL,NULL,'NGS-Usa KY',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1484','NAD83 to NAD83(HARN) (11)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1719.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1387',0.05,'EPSG','8657','Latitude difference file','lahpgn.las','EPSG','8658','Longitude difference file','lahpgn.los',NULL,NULL,'NGS-Usa LA',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1485','NAD83 to NAD83(HARN) (12)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1720.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','2377',0.05,'EPSG','8657','Latitude difference file','mdhpgn.las','EPSG','8658','Longitude difference file','mdhpgn.los',NULL,NULL,'NGS-Usa DE MD',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1486','NAD83 to NAD83(HARN) (13)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1721.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1388',0.05,'EPSG','8657','Latitude difference file','mehpgn.las','EPSG','8658','Longitude difference file','mehpgn.los',NULL,NULL,'NGS-Usa ME',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1487','NAD83 to NAD83(HARN) (14)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1722.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1391',0.05,'EPSG','8657','Latitude difference file','mihpgn.las','EPSG','8658','Longitude difference file','mihpgn.los',NULL,NULL,'NGS-Usa MI',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1488','NAD83 to NAD83(HARN) (15)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1723.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1393',0.05,'EPSG','8657','Latitude difference file','mshpgn.las','EPSG','8658','Longitude difference file','mshpgn.los',NULL,NULL,'NGS-Usa MS',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1489','NAD83 to NAD83(HARN) (16)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1724.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1396',0.05,'EPSG','8657','Latitude difference file','nbhpgn.las','EPSG','8658','Longitude difference file','nbhpgn.los',NULL,NULL,'NGS-Usa NE',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1490','NAD83 to NAD83(HARN) (17)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1725.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','2378',0.05,'EPSG','8657','Latitude difference file','nehpgn.las','EPSG','8658','Longitude difference file','nehpgn.los',NULL,NULL,'NGS-Usa NewEng',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1491','NAD83 to NAD83(HARN) (18)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1726.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1400',0.05,'EPSG','8657','Latitude difference file','nmhpgn.las','EPSG','8658','Longitude difference file','nmhpgn.los',NULL,NULL,'NGS-Usa NM',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1492','NAD83 to NAD83(HARN) (19)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1727.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1401',0.05,'EPSG','8657','Latitude difference file','nyhpgn.las','EPSG','8658','Longitude difference file','nyhpgn.los',NULL,NULL,'NGS-Usa NY',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1493','NAD83 to NAD83(HARN) (20)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1729.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1403',0.05,'EPSG','8657','Latitude difference file','ndhpgn.las','EPSG','8658','Longitude difference file','ndhpgn.los',NULL,NULL,'NGS-Usa ND',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1494','NAD83 to NAD83(HARN) (21)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1730.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1405',0.05,'EPSG','8657','Latitude difference file','okhpgn.las','EPSG','8658','Longitude difference file','okhpgn.los',NULL,NULL,'NGS-Usa OK',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1495','NAD83 to NAD83(HARN) (22)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1731.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','3634',0.05,'EPSG','8657','Latitude difference file','pvhpgn.las','EPSG','8658','Longitude difference file','pvhpgn.los',NULL,NULL,'NGS-PRVI',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1496','NAD83 to NAD83(HARN) (23)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1732.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1410',0.05,'EPSG','8657','Latitude difference file','sdhpgn.las','EPSG','8658','Longitude difference file','sdhpgn.los',NULL,NULL,'NGS-Usa SD',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1497','NAD83 to NAD83(HARN) (24)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1733.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1411',0.05,'EPSG','8657','Latitude difference file','tnhpgn.las','EPSG','8658','Longitude difference file','tnhpgn.los',NULL,NULL,'NGS-Usa TN',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1498','NAD83 to NAD83(HARN) (25)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1734.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','2379',0.05,'EPSG','8657','Latitude difference file','ethpgn.las','EPSG','8658','Longitude difference file','ethpgn.los',NULL,NULL,'NGS-Usa TX e',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1499','NAD83 to NAD83(HARN) (26)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1735.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','2380',0.05,'EPSG','8657','Latitude difference file','wthpgn.las','EPSG','8658','Longitude difference file','wthpgn.los',NULL,NULL,'NGS-Usa TX w',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1500','NAD83 to NAD83(HARN) (27)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1736.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1415',0.05,'EPSG','8657','Latitude difference file','vahpgn.las','EPSG','8658','Longitude difference file','vahpgn.los',NULL,NULL,'NGS-Usa VA',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1501','NAD83 to NAD83(HARN) (28)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1737.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','2381',0.05,'EPSG','8657','Latitude difference file','wohpgn.las','EPSG','8658','Longitude difference file','wohpgn.los',NULL,NULL,'NGS-Usa OR WA',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1502','NAD83 to NAD83(HARN) (29)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1738.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1418',0.05,'EPSG','8657','Latitude difference file','wihpgn.las','EPSG','8658','Longitude difference file','wihpgn.los',NULL,NULL,'NGS-Usa WI',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1503','NAD83 to NAD83(HARN) (30)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1740.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1419',0.05,'EPSG','8657','Latitude difference file','wyhpgn.las','EPSG','8658','Longitude difference file','wyhpgn.los',NULL,NULL,'NGS-Usa WY',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1506','AGD66 to GDA94 (6)','Replaced by AGD66 to GDA94 (11) (code 1803). Input expects longitudes to be positive west; EPSG GeogCRS AGD66 (code 4202) and GDA94 (code 4283) both have longitudes positive east.','0.1m accuracy.','EPSG','9615','NTv2','EPSG','4202','EPSG','4283','EPSG','1282',0.1,'EPSG','8656','Latitude and longitude difference file','tas_1098.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OSG-Tas 0.1m',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1507','AGD66 to GDA94 (7)','Replaced by AGD66 to GDA94 (11) (code 1803). Input expects longitudes to be positive west; EPSG GeogCRS AGD66 (code 4202) and GDA94 (code 4283) both have longitudes positive east.','0.1m accuracy.','EPSG','9615','NTv2','EPSG','4202','EPSG','4283','EPSG','2284',0.1,'EPSG','8656','Latitude and longitude difference file','nt_0599.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'Auslig-NT 0.1m',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1520','NAD83 to NAD83(HARN) (31)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1741.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1334',0.05,'EPSG','8657','Latitude difference file','hihpgn.las','EPSG','8658','Longitude difference file','hihpgn.los',NULL,NULL,'NGS-Usa HI',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1521','NAD83 to NAD83(HARN) (32)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1742.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1383',0.05,'EPSG','8657','Latitude difference file','inhpgn.las','EPSG','8658','Longitude difference file','inhpgn.los',NULL,NULL,'NGS-Usa IN',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1522','NAD83 to NAD83(HARN) (33)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1743.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1385',0.05,'EPSG','8657','Latitude difference file','kshpgn.las','EPSG','8658','Longitude difference file','kshpgn.los',NULL,NULL,'NGS-Usa KS',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1523','NAD83 to NAD83(HARN) (34)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1744.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1397',0.05,'EPSG','8657','Latitude difference file','nvhpgn.las','EPSG','8658','Longitude difference file','nvhpgn.los',NULL,NULL,'NGS-Usa NV',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1524','NAD83 to NAD83(HARN) (35)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1745.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1404',0.05,'EPSG','8657','Latitude difference file','ohhpgn.las','EPSG','8658','Longitude difference file','ohhpgn.los',NULL,NULL,'NGS-Usa OH',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1525','NAD83 to NAD83(HARN) (36)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1746.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1413',0.05,'EPSG','8657','Latitude difference file','uthpgn.las','EPSG','8658','Longitude difference file','uthpgn.los',NULL,NULL,'NGS-Usa UT',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1526','NAD83 to NAD83(HARN) (37)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1747.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1417',0.05,'EPSG','8657','Latitude difference file','wvhpgn.las','EPSG','8658','Longitude difference file','wvhpgn.los',NULL,NULL,'NGS-Usa WV',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1553','NAD83 to NAD83(HARN) (38)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1748.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1382',0.05,'EPSG','8657','Latitude difference file','ilhpgn.las','EPSG','8658','Longitude difference file','ilhpgn.los',NULL,NULL,'NGS-Usa IL',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1554','NAD83 to NAD83(HARN) (39)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1749.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1399',0.05,'EPSG','8657','Latitude difference file','njhpgn.las','EPSG','8658','Longitude difference file','njhpgn.los',NULL,NULL,'NGS-Usa NJ',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1559','AGD84 to GDA94 (3)','Withdrawn and replaced by AGD84 to GDA94 (4) (code 1593) due to binary file format error. Input expects longitudes to be positive west; EPSG GeogCRS AGD84 (code 4203) and GDA94 (code 4283) have longitudes positive east.','0.1m accuracy.','EPSG','9615','NTv2','EPSG','4203','EPSG','4283','EPSG','1280',0.1,'EPSG','8656','Latitude and longitude difference file','wa_0400.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'DOLA-Aus WA 0.1m old',1);
INSERT INTO "grid_transformation" VALUES('EPSG','1568','NZGD49 to NZGD2000 (3)','These same parameter values may be used to transform to WGS 84 - see NZGD49 to WGS 84 (4) (code 1670).','0.2m accuracy.','EPSG','9615','NTv2','EPSG','4272','EPSG','4167','EPSG','3285',0.2,'EPSG','8656','Latitude and longitude difference file','nzgd2kgrid0005.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OSG-Nzl 1m',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1572','NAD83 to NAD83(CSRS98) (1)','Uses NT method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(CSRS98) (code 4140) have longitudes positive east. Can be taken as an approximate transformation NAD83 to WGS 84 - see code 1696.','Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4269','EPSG','4140','EPSG','1368',NULL,'EPSG','8656','Latitude and longitude difference file','NAD83-98.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'SGQ-Can QC',1);
INSERT INTO "grid_transformation" VALUES('EPSG','1573','NAD27 to NAD83 (6)','Replaces NAD27 to NAD83 (5) (code 1462). Uses NT method which expects longitudes positive west; EPSG GeogCRSs NAD27 (code 4267) and NAD83 (code 4269) have longitudes positive east.','Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4267','EPSG','4269','EPSG','1368',1.5,'EPSG','8656','Latitude and longitude difference file','QUE27-83.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'SGQ-Can QC NT2',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1574','NAD27 to NAD83(CSRS98) (1)','Uses NT method which expects longitudes positive west; EPSG GeogCRSs NAD27 (code 4267) and NAD83(CSRS98) (code 4140) have longitudes positive east. Can be taken as an approximate transformation NAD27 to WGS 84 - see code 1692.','Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4267','EPSG','4140','EPSG','1368',NULL,'EPSG','8656','Latitude and longitude difference file','QUE27-98.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'SGQ-Can QC',1);
INSERT INTO "grid_transformation" VALUES('EPSG','1575','NAD27(CGQ77) to NAD83 (2)','Replaces NAD27(CGQ77) to NAD83 (1) (code 1451). Uses NT method which expects longitudes positive west; EPSG GeogCRSs CGQ77 and NAD83 (codes 4609 and 4269) have longitudes positive east. Can be taken as approx transformation to WGS 84 - see code 1691.','Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4609','EPSG','4269','EPSG','1368',1.5,'EPSG','8656','Latitude and longitude difference file','CGQ77-83.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'SGQ-Can QC NT2',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1576','NAD27(CGQ77) to NAD83(CSRS98) (1)','Uses NT method which expects longitudes positive west; EPSG GeogCRSs NAD27(CGQ77) (code 4609) and NAD83(CSRS98) (code 4140) have 1691longitudes positive east. Can be taken as an approximate transformation NAD27(CGQ77) to WGS 84 - see code 1691.','Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4609','EPSG','4140','EPSG','1368',NULL,'EPSG','8656','Latitude and longitude difference file','CGQ77-98.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'SGQ-Can QC',1);
INSERT INTO "grid_transformation" VALUES('EPSG','1578','American Samoa 1962 to NAD83(HARN) (1)','NADCON method which expects longitudes positive west; EPSG GeogCRSs American Samoa 1962 and NAD83(HARN) (codes 4169 and 4152) have longitudes positive east. NADCON expects latitudes in northern hemisphere and values must be made positive prior to input.','Geodetic survey. No accuracy stated.','EPSG','9613','NADCON','EPSG','4169','EPSG','4152','EPSG','2288',5.0,'EPSG','8657','Latitude difference file','wshpgn.las','EPSG','8658','Longitude difference file','wshpgn.los',NULL,NULL,'NGS-Asm W',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1579','American Samoa 1962 to NAD83(HARN) (2)','NADCON method which expects longitudes positive west; EPSG GeogCRSs American Samoa 1962 and NAD83(HARN) (codes 4169 and 4152) have longitudes positive east. NADCON expects latitudes in northern hemisphere and values must be made positive prior to input.','Geodetic survey. No accuracy stated.','EPSG','9613','NADCON','EPSG','4169','EPSG','4152','EPSG','2289',5.0,'EPSG','8657','Latitude difference file','eshpgn.las','EPSG','8658','Longitude difference file','eshpgn.los',NULL,NULL,'NGS-Asm E',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1593','AGD84 to GDA94 (4)','Replaces AGD84 to GDA94 (3) (code 1559) and then replaced by AGD84 to GDA94 (5) (code 1804). Input expects longitudes to be positive west; EPSG GeogCRS AGD84 (code 4203) and GDA94 (code 4283) both have longitudes positive east.','0.1m accuracy.','EPSG','9615','NTv2','EPSG','4203','EPSG','4283','EPSG','1280',0.1,'EPSG','8656','Latitude and longitude difference file','wa_0700.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'DOLA-Aus WA 0.1m',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1596','AGD66 to GDA94 (10)','Replaces AGD66 to GDA94 (5) (code 1464). Replaced by AGD66 to GDA94 (11) (code 1803). Input expects longitudes to be positive west; EPSG GeogCRS AGD66 (code 4202) and GDA94 (code 4283) both have longitudes positive east.','0.1m accuracy.','EPSG','9615','NTv2','EPSG','4202','EPSG','4283','EPSG','2287',0.1,'EPSG','8656','Latitude and longitude difference file','SEAust_21_06_00.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OSG-Aus SE 0.1m',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1599','ATS77 to NAD83(CSRS98) (2)','Can be taken as an approximate transformation ATS77 to WGS 84 - see code 1689.','?','EPSG','9615','NTv2','EPSG','4122','EPSG','4140','EPSG','1533',NULL,'EPSG','8656','Latitude and longitude difference file','PE7783V2.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'PEI DOT-Can PEI',1);
INSERT INTO "grid_transformation" VALUES('EPSG','1600','NAD27 to NAD83(CSRS98) (2)','Can be taken as an approximate transformation NAD27 to WGS 84 - see code 1703.','Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4267','EPSG','4140','EPSG','2375',NULL,'EPSG','8656','Latitude and longitude difference file','SK27-98.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'SK PMC-Can SK',1);
INSERT INTO "grid_transformation" VALUES('EPSG','1601','NAD83 to NAD83(CSRS98) (2)','Can be taken as an approximate transformation NAD83 to WGS 84 - see code 1697.','Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4269','EPSG','4140','EPSG','2375',NULL,'EPSG','8656','Latitude and longitude difference file','SK83-98.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'SK PMC-Can SK',1);
INSERT INTO "grid_transformation" VALUES('EPSG','1602','NAD83 to NAD83(CSRS98) (3)','This gridded difference file AB_CSRS.DAC will need to be renamed to AB_CSRS.gsb to run in some software suites. Formats identical, but AB file is provincial fit only.','Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4267','EPSG','4140','EPSG','2376',NULL,'EPSG','8656','Latitude and longitude difference file','AB_CSRS.DAC',NULL,NULL,NULL,NULL,NULL,NULL,'AB Env-Can AB',1);
INSERT INTO "grid_transformation" VALUES('EPSG','1670','NZGD49 to WGS 84 (3)','Parameter file is from NZGD49 to NZGD2000 (3) (code 1568) and assumes WGS 84 is coincident with NZGD2000 to the accuracy of the transformation.','Accuracy about 1m.','EPSG','9615','NTv2','EPSG','4272','EPSG','4326','EPSG','3285',1.0,'EPSG','8656','Latitude and longitude difference file','nzgd2kgrid0005.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'EPSG-Nzl 1m',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1688','ATS77 to WGS 84 (1)','Parameter file is from ATS77 to NAD83(CSRS) (1) (code 1841) assuming that NAD83(CSRS) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9615','NTv2','EPSG','4122','EPSG','4326','EPSG','1447',1.0,'EPSG','8656','Latitude and longitude difference file','NB7783v2.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'EPSG-Can NB',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1689','ATS77 to WGS 84 (2)','Parameter file is from ATS77 to NAD83(CSRS) (2) (code 1846) assuming that NAD83(CSRS) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9615','NTv2','EPSG','4122','EPSG','4326','EPSG','1533',1.0,'EPSG','8656','Latitude and longitude difference file','PE7783V2.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'EPSG-Can PEI',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1690','NAD27(76) to WGS 84 (1)','Parameter file is from NAD27(76) to NAD83 (1) (code 1463) assuming that NAD83 is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9615','NTv2','EPSG','4608','EPSG','4326','EPSG','1367',1.0,'EPSG','8656','Latitude and longitude difference file','May76v20.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'EPSG-Can On',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1691','NAD27(CGQ77) to WGS 84 (3)','Parameter file is from NAD27(CGQ77) to NAD83(CSRS) (1) (code 1845) assuming that NAD83(CSRS98) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9615','NTv2','EPSG','4609','EPSG','4326','EPSG','1368',1.0,'EPSG','8656','Latitude and longitude difference file','CGQ77-98.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'EPSG-Can Qc NT2',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1692','NAD27 to WGS 84 (34)','Parameter file is from NAD27 to NAD83(CSRS) (1) (code 1844) assuming that NAD83(CSRS) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9615','NTv2','EPSG','4267','EPSG','4326','EPSG','1368',1.0,'EPSG','8656','Latitude and longitude difference file','QUE27-98.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'EPSG-Can QC',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1693','NAD27 to WGS 84 (33)','Parameter file is from NAD27 to NAD83 (4) (code 1313) assuming that NAD83 is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9615','NTv2','EPSG','4267','EPSG','4326','EPSG','4517',1.0,'EPSG','8656','Latitude and longitude difference file','NTv2_0.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'EPSG-Can',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1694','American Samoa 1962 to WGS 84 (2)','Parameter files are from American Samoa 1962 to NAD83(HARN) (1) (code 1578), but for many purposes NAD83(HARN) can be considered to be coincident with WGS 84 within the accuracy of the transformation.','No accuracy stated for source transformation.','EPSG','9613','NADCON','EPSG','4169','EPSG','4326','EPSG','2288',5.0,'EPSG','8657','Latitude difference file','wshpgn.las','EPSG','8658','Longitude difference file','wshpgn.los',NULL,NULL,'EPSG-Asm W',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1695','American Samoa 1962 to WGS 84 (3)','Parameter files are from American Samoa 1962 to NAD83(HARN) (2) (code 1579), but for many purposes NAD83(HARN) can be considered to be coincident with WGS 84 within the accuracy of the transformation.','No accuracy stated for source transformation.','EPSG','9613','NADCON','EPSG','4169','EPSG','4326','EPSG','2289',5.0,'EPSG','8657','Latitude difference file','eshpgn.las','EPSG','8658','Longitude difference file','eshpgn.los',NULL,NULL,'EPSG-Asm E',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1696','NAD83 to WGS 84 (6)','Parameter file is from NAD83 to NAD83(CSRS) (1) (code 1843) assuming that NAD83(CSRS) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9615','NTv2','EPSG','4269','EPSG','4326','EPSG','1368',1.0,'EPSG','8656','Latitude and longitude difference file','NAD83-98.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'EPSG-Can QC',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1697','NAD83 to WGS 84 (7)','Parameter file is from NAD83 to NAD83(CSRS8) (2) (code 1848) assuming that NAD83(CSRS) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9615','NTv2','EPSG','4269','EPSG','4326','EPSG','2375',1.0,'EPSG','8656','Latitude and longitude difference file','SK83-98.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'EPSG-Can SK',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1698','St. George Island to WGS 84 (1)','Parameter files are from St. George Island to NAD83 (1) (code 1457) assuming that NAD83 is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1 to 2m level.','EPSG','9613','NADCON','EPSG','4138','EPSG','4326','EPSG','1331',1.5,'EPSG','8657','Latitude difference file','stgeorge.las','EPSG','8658','Longitude difference file','stgeorge.los',NULL,NULL,'EPSG-Usa AK StG',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1699','St. Lawrence Island to WGS 84 (1)','Parameter files are from St. Lawrence Island to NAD83 (1) (code 1455) assuming that NAD83 is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1 to 2m level.','EPSG','9613','NADCON','EPSG','4136','EPSG','4326','EPSG','1332',1.5,'EPSG','8657','Latitude difference file','stlrnc.las','EPSG','8658','Longitude difference file','stlrnc.los',NULL,NULL,'EPSG-Usa AK StL',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1700','St. Paul Island to WGS 84 (1)','Parameter files are from St. Paul Island to NAD83 (1) (code 1456) assuming that NAD83 is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1 to 2m level.','EPSG','9613','NADCON','EPSG','4137','EPSG','4326','EPSG','1333',1.5,'EPSG','8657','Latitude difference file','stpaul.las','EPSG','8658','Longitude difference file','stpaul.los',NULL,NULL,'EPSG-Usa AK StP',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1702','NAD83 to WGS 84 (8)','Parameter file is from NAD83 to NAD83(CSRS) (3) (code 1849) assuming that NAD83(CSRS) is equivalent to WGS 84 within the accuracy of the transformation. This file AB_CSRS.DAC will need to be renamed to AB_CSRS.gsb to run in some sodtware.','Approximation at the +/- 1m level.','EPSG','9615','NTv2','EPSG','4269','EPSG','4326','EPSG','2376',1.0,'EPSG','8656','Latitude and longitude difference file','AB_CSRS.DAC',NULL,NULL,NULL,NULL,NULL,NULL,'EPSG-Can AB',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1703','NAD27 to WGS 84 (32)','Parameter file is from NAD27 to NAD83(CSRS) (1) (code 1847) assuming that NAD83(CSRS) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9615','NTv2','EPSG','4267','EPSG','4326','EPSG','2375',1.0,'EPSG','8656','Latitude and longitude difference file','SK27-98.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'EPSG-Can SK',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1704','NAD83 to NAD83(HARN) (40)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1708.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1374',0.05,'EPSG','8657','Latitude difference file','arhpgn.las','EPSG','8658','Longitude difference file','arhpgn.los',NULL,NULL,'NGS-Usa AR',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1705','NAD83 to NAD83(HARN) (41)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east. May be taken as approximate transformation NAD83-WGS 84 - see code 1709.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1384',0.05,'EPSG','8657','Latitude difference file','iahpgn.las','EPSG','8658','Longitude difference file','iahpgn.los',NULL,NULL,'NGS-Usa IA',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1706','NAD83 to NAD83(HARN) (42)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 1710.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1392',0.05,'EPSG','8657','Latitude difference file','mnhpgn.las','EPSG','8658','Longitude difference file','mnhpgn.los',NULL,NULL,'NGS-Usa MN',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1707','NAD83 to NAD83(HARN) (43)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east. May be taken as approximate transformation NAD83-WGS 84 - see code 1711.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1394',0.05,'EPSG','8657','Latitude difference file','mohpgn.las','EPSG','8658','Longitude difference file','mohpgn.los',NULL,NULL,'NGS-Usa MO',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1708','NAD83 to WGS 84 (12)','Parameter files are from NAD83 to NAD83(HARN) (40) (code 1704) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1374',1.0,'EPSG','8657','Latitude difference file','arhpgn.las','EPSG','8658','Longitude difference file','arhpgn.los',NULL,NULL,'EPSG-USA Ar',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1709','NAD83 to WGS 84 (13)','Parameter files are from NAD83 to NAD83(HARN) (41) (code 1705) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1384',1.0,'EPSG','8657','Latitude difference file','iahpgn.las','EPSG','8658','Longitude difference file','iahpgn.los',NULL,NULL,'EPSG-Usa IA',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1710','NAD83 to WGS 84 (14)','Parameter files are from NAD83 to NAD83(HARN) (42) (code 1706) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1392',1.0,'EPSG','8657','Latitude difference file','mnhpgn.las','EPSG','8658','Longitude difference file','mnhpgn.los',NULL,NULL,'EPSG-Usa MN',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1711','NAD83 to WGS 84 (15)','Parameter files are from NAD83 to NAD83(HARN) (43) (code 1707) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1394',1.0,'EPSG','8657','Latitude difference file','mohpgn.las','EPSG','8658','Longitude difference file','mohpgn.los',NULL,NULL,'EPSG-Usa MO',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1712','NAD83 to WGS 84 (16)','Parameter files are from NAD83 to NAD83(HARN) (5) (code 1478) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1376',1.0,'EPSG','8657','Latitude difference file','cohpgn.las','EPSG','8658','Longitude difference file','cohpgn.los',NULL,NULL,'EPSG-Usa CO',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1713','NAD83 to WGS 84 (17)','Parameter files are from NAD83 to NAD83(HARN) (6) (code 1479) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1380',1.0,'EPSG','8657','Latitude difference file','gahpgn.las','EPSG','8658','Longitude difference file','gahpgn.los',NULL,NULL,'EPSG-Usa GA',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1714','NAD83 to WGS 84 (18)','Parameter files are from NAD83 to NAD83(HARN) (7) (code 1480) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1379',1.0,'EPSG','8657','Latitude difference file','flhpgn.las','EPSG','8658','Longitude difference file','flhpgn.los',NULL,NULL,'EPSG-Usa FL',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1715','NAD83 to WGS 84 (19)','Parameter files are from NAD83 to NAD83(HARN) (8) (code 1481) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','2382',1.0,'EPSG','8657','Latitude difference file','emhpgn.las','EPSG','8658','Longitude difference file','emhpgn.los',NULL,NULL,'EPSG-Usa ID MT e',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1716','NAD83 to WGS 84 (20)','Parameter files are from NAD83 to NAD83(HARN) (9) (code 1482) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','2383',1.0,'EPSG','8657','Latitude difference file','wmhpgn.las','EPSG','8658','Longitude difference file','wmhpgn.los',NULL,NULL,'EPSG-Usa ID MT w',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1717','NAD83 to WGS 84 (21)','Parameter files are from NAD83 to NAD83(HARN) (1) (code 1474) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1372',1.0,'EPSG','8657','Latitude difference file','alhpgn.las','EPSG','8658','Longitude difference file','alhpgn.los',NULL,NULL,'EPSG-Usa AL',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1718','NAD83 to WGS 84 (22)','Parameter files are from NAD83 to NAD83(HARN) (10) (code 1483) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1386',1.0,'EPSG','8657','Latitude difference file','kyhpgn.las','EPSG','8658','Longitude difference file','kyhpgn.los',NULL,NULL,'EPSG-Usa KY',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1719','NAD83 to WGS 84 (23)','Parameter files are from NAD83 to NAD83(HARN) (11) (code 1484) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1387',1.0,'EPSG','8657','Latitude difference file','lahpgn.las','EPSG','8658','Longitude difference file','lahpgn.los',NULL,NULL,'EPSG-Usa LA',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1720','NAD83 to WGS 84 (24)','Parameter files are from NAD83 to NAD83(HARN) (12) (code 1485) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','2377',1.0,'EPSG','8657','Latitude difference file','mdhpgn.las','EPSG','8658','Longitude difference file','mdhpgn.los',NULL,NULL,'EPSG-Usa DE MD',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1721','NAD83 to WGS 84 (25)','Parameter files are from NAD83 to NAD83(HARN) (13) (code 1486) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1388',1.0,'EPSG','8657','Latitude difference file','mehpgn.las','EPSG','8658','Longitude difference file','mehpgn.los',NULL,NULL,'EPSG-Usa ME',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1722','NAD83 to WGS 84 (26)','Parameter files are from NAD83 to NAD83(HARN) (14) (code 1487) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1391',1.0,'EPSG','8657','Latitude difference file','mihpgn.las','EPSG','8658','Longitude difference file','mihpgn.los',NULL,NULL,'EPSG-Usa MI',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1723','NAD83 to WGS 84 (27)','Parameter files are from NAD83 to NAD83(HARN) (15) (code 1488) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1393',1.0,'EPSG','8657','Latitude difference file','mshpgn.las','EPSG','8658','Longitude difference file','mshpgn.los',NULL,NULL,'EPSG-Usa MS',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1724','NAD83 to WGS 84 (28)','Parameter files are from NAD83 to NAD83(HARN) (16) (code 1489) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1396',1.0,'EPSG','8657','Latitude difference file','nbhpgn.las','EPSG','8658','Longitude difference file','nbhpgn.los',NULL,NULL,'EPSG-Usa NE',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1725','NAD83 to WGS 84 (29)','Parameter files are from NAD83 to NAD83(HARN) (17) (code 1490) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','2378',1.0,'EPSG','8657','Latitude difference file','nehpgn.las','EPSG','8658','Longitude difference file','nehpgn.los',NULL,NULL,'EPSG-Usa NewEng',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1726','NAD83 to WGS 84 (30)','Parameter files are from NAD83 to NAD83(HARN) (18) (code 1491) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1400',1.0,'EPSG','8657','Latitude difference file','nmhpgn.las','EPSG','8658','Longitude difference file','nmhpgn.los',NULL,NULL,'EPSG-Usa NM',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1727','NAD83 to WGS 84 (31)','Parameter files are from NAD83 to NAD83(HARN) (19) (code 1492) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1401',1.0,'EPSG','8657','Latitude difference file','nyhpgn.las','EPSG','8658','Longitude difference file','nyhpgn.los',NULL,NULL,'EPSG-Usa NY',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1728','NAD83 to WGS 84 (32)','Parameter files are from NAD83 to NAD83(HARN) (2) (code 1475) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1373',1.0,'EPSG','8657','Latitude difference file','azhpgn.las','EPSG','8658','Longitude difference file','azhpgn.los',NULL,NULL,'EPSG-Usa AZ',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1729','NAD83 to WGS 84 (33)','Parameter files are from NAD83 to NAD83(HARN) (20) (code 1493) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1403',1.0,'EPSG','8657','Latitude difference file','ndhpgn.las','EPSG','8658','Longitude difference file','ndhpgn.los',NULL,NULL,'EPSG-Usa ND',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1730','NAD83 to WGS 84 (34)','Parameter files are from NAD83 to NAD83(HARN) (21) (code 1494) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1405',1.0,'EPSG','8657','Latitude difference file','okhpgn.las','EPSG','8658','Longitude difference file','okhpgn.los',NULL,NULL,'EPSG-Usa OK',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1731','NAD83 to WGS 84 (35)','Parameter files are from NAD83 to NAD83(HARN) (22) (code 1495) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','3634',1.0,'EPSG','8657','Latitude difference file','pvhpgn.las','EPSG','8658','Longitude difference file','pvhpgn.los',NULL,NULL,'EPSG-PRVI',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1732','NAD83 to WGS 84 (36)','Parameter files are from NAD83 to NAD83(HARN) (23) (code 1496) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1410',1.0,'EPSG','8657','Latitude difference file','sdhpgn.las','EPSG','8658','Longitude difference file','sdhpgn.los',NULL,NULL,'EPSG-Usa SD',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1733','NAD83 to WGS 84 (37)','Parameter files are from NAD83 to NAD83(HARN) (24) (code 1497) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1411',1.0,'EPSG','8657','Latitude difference file','tnhpgn.las','EPSG','8658','Longitude difference file','tnhpgn.los',NULL,NULL,'EPSG-Usa TN',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1734','NAD83 to WGS 84 (38)','Parameter files are from NAD83 to NAD83(HARN) (25) (code 1498) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','2379',1.0,'EPSG','8657','Latitude difference file','ethpgn.las','EPSG','8658','Longitude difference file','ethpgn.los',NULL,NULL,'EPSG-Usa TX e',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1735','NAD83 to WGS 84 (39)','Parameter files are from NAD83 to NAD83(HARN) (26) (code 1499) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','2380',1.0,'EPSG','8657','Latitude difference file','wthpgn.las','EPSG','8658','Longitude difference file','wthpgn.los',NULL,NULL,'EPSG-Usa TX w',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1736','NAD83 to WGS 84 (40)','Parameter files are from NAD83 to NAD83(HARN) (27) (code 1500) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1415',1.0,'EPSG','8657','Latitude difference file','vahpgn.las','EPSG','8658','Longitude difference file','vahpgn.los',NULL,NULL,'EPSG-Usa VA',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1737','NAD83 to WGS 84 (41)','Parameter files are from NAD83 to NAD83(HARN) (28) (code 1501) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','2381',1.0,'EPSG','8657','Latitude difference file','wohpgn.las','EPSG','8658','Longitude difference file','wohpgn.los',NULL,NULL,'EPSG-Usa OR WA',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1738','NAD83 to WGS 84 (42)','Parameter files are from NAD83 to NAD83(HARN) (29) (code 1502) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1418',1.0,'EPSG','8657','Latitude difference file','wihpgn.las','EPSG','8658','Longitude difference file','wihpgn.los',NULL,NULL,'EPSG-Usa WI',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1739','NAD83 to WGS 84 (43)','Parameter files are from NAD83 to NAD83(HARN) (3) (code 1476) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','2297',1.0,'EPSG','8657','Latitude difference file','cnhpgn.las','EPSG','8658','Longitude difference file','cnhpgn.los',NULL,NULL,'EPSG-Usa CA n',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1740','NAD83 to WGS 84 (44)','Parameter files are from NAD83 to NAD83(HARN) (30) (code 1503) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1419',1.0,'EPSG','8657','Latitude difference file','wyhpgn.las','EPSG','8658','Longitude difference file','wyhpgn.los',NULL,NULL,'EPSG-Usa WY',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1741','NAD83 to WGS 84 (45)','Parameter files are from NAD83 to NAD83(HARN) (31) (code 1520) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1334',1.0,'EPSG','8657','Latitude difference file','hihpgn.las','EPSG','8658','Longitude difference file','hihpgn.los',NULL,NULL,'EPSG-Usa HI',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1742','NAD83 to WGS 84 (46)','Parameter files are from NAD83 to NAD83(HARN) (32) (code 1521) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1383',1.0,'EPSG','8657','Latitude difference file','inhpgn.las','EPSG','8658','Longitude difference file','inhpgn.los',NULL,NULL,'EPSG-Usa IN',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1743','NAD83 to WGS 84 (47)','Parameter files are from NAD83 to NAD83(HARN) (33) (code 1522) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1385',1.0,'EPSG','8657','Latitude difference file','kshpgn.las','EPSG','8658','Longitude difference file','kshpgn.los',NULL,NULL,'EPSG-Usa KS',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1744','NAD83 to WGS 84 (48)','Parameter files are from NAD83 to NAD83(HARN) (34) (code 1523) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1397',1.0,'EPSG','8657','Latitude difference file','nvhpgn.las','EPSG','8658','Longitude difference file','nvhpgn.los',NULL,NULL,'EPSG-Usa NV',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1745','NAD83 to WGS 84 (49)','Parameter files are from NAD83 to NAD83(HARN) (35) (code 1524) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1404',1.0,'EPSG','8657','Latitude difference file','ohhpgn.las','EPSG','8658','Longitude difference file','ohhpgn.los',NULL,NULL,'EPSG-Usa OH',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1746','NAD83 to WGS 84 (50)','Parameter files are from NAD83 to NAD83(HARN) (36) (code 1525) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1413',1.0,'EPSG','8657','Latitude difference file','uthpgn.las','EPSG','8658','Longitude difference file','uthpgn.los',NULL,NULL,'EPSG-Usa UT',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1747','NAD83 to WGS 84 (51)','Parameter files are from NAD83 to NAD83(HARN) (37) (code 1526) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1417',1.0,'EPSG','8657','Latitude difference file','wvhpgn.las','EPSG','8658','Longitude difference file','wvhpgn.los',NULL,NULL,'EPSG-Usa WV',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1748','NAD83 to WGS 84 (52)','Parameter files are from NAD83 to NAD83(HARN) (38) (code 1553) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1382',1.0,'EPSG','8657','Latitude difference file','ilhpgn.las','EPSG','8658','Longitude difference file','ilhpgn.los',NULL,NULL,'EPSG-Usa IL',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1749','NAD83 to WGS 84 (53)','Parameter files are from NAD83 to NAD83(HARN) (39) (code 1554) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1399',1.0,'EPSG','8657','Latitude difference file','njhpgn.las','EPSG','8658','Longitude difference file','njhpgn.los',NULL,NULL,'EPSG-Usa NJ',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1750','NAD83 to WGS 84 (54)','Parameter files are from NAD83 to NAD83(HARN) (4) (code 1477) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','2298',1.0,'EPSG','8657','Latitude difference file','cshpgn.las','EPSG','8658','Longitude difference file','cshpgn.los',NULL,NULL,'EPSG-Usa CA s',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1752','NAD83 to NAD83(CSRS98) (3)','This gridded difference file AB_CSRS.DAC will need to be renamed to AB_CSRS.gsb to run in some software suites. Formats identical, but AB file is provincial fit only. Can be taken as an approximate transformation NAD83 to WGS 84 - see code 1702.','?','EPSG','9615','NTv2','EPSG','4269','EPSG','4140','EPSG','2376',NULL,'EPSG','8656','Latitude and longitude difference file','AB_CSRS.DAC',NULL,NULL,NULL,NULL,NULL,NULL,'AB Env-Can AB',1);
INSERT INTO "grid_transformation" VALUES('EPSG','1803','AGD66 to GDA94 (11)','Replaces AGD66 to GDA94 variants 6, 7 and 10 (codes 1506 1507 1596). Input expects longitudes to be positive west; EPSG GeogCRS AGD66 (code 4202) and GDA94 (code 4283) both have longitudes positive east. May be used as tfm to WGS 84 - see code 15786.','0.1m accuracy.','EPSG','9615','NTv2','EPSG','4202','EPSG','4283','EPSG','2575',0.1,'EPSG','8656','Latitude and longitude difference file','A66 National (13.09.01).gsb',NULL,NULL,NULL,NULL,NULL,NULL,'ICSM-Aus 0.1m',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1804','AGD84 to GDA94 (5)','Replaces AGD84 to GDA94 (4) (code 1593) which itself replaced variant 3 (code 1559). Input expects longitudes to be + west; EPSG GeogCRS AGD84 (code 4203) and GDA94 (code 4283) both have longitudes positive east. May be used as tfm to WGS 84 - see 15785','0.1m accuracy.','EPSG','9615','NTv2','EPSG','4203','EPSG','4283','EPSG','2576',0.1,'EPSG','8656','Latitude and longitude difference file','National 84 (02.07.01).gsb',NULL,NULL,NULL,NULL,NULL,NULL,'Auslig-Aus 0.1m',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1841','ATS77 to NAD83(CSRS) (1)','Introduced in 1999. Can be taken as an approximate transformation ATS77 to WGS 84 - see code 1688.','Used in the GeoNB Coordinate Transformation Service. Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4122','EPSG','4617','EPSG','1447',1.5,'EPSG','8656','Latitude and longitude difference file','NB7783v2.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'GIC-Can NB',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1843','NAD83 to NAD83(CSRS) (1)','Uses NT method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(CSRS) (code 4617) have longitudes positive east. Can be taken as an approximate transformation NAD83 to WGS 84 - see code 1696.','Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4269','EPSG','4617','EPSG','1368',1.5,'EPSG','8656','Latitude and longitude difference file','NAD83-98.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'SGQ-Can QC',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1844','NAD27 to NAD83(CSRS) (1)','Uses NT method which expects longitudes positive west; EPSG GeogCRSs NAD27 (code 4267) and NAD83(CSRS) (code 4617) have longitudes positive east. Can be taken as an approximate transformation NAD27 to WGS 84 - see code 1692.','Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4267','EPSG','4617','EPSG','1368',1.5,'EPSG','8656','Latitude and longitude difference file','QUE27-98.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'SGQ-Can QC',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1845','NAD27(CGQ77) to NAD83(CSRS) (1)','Uses NT method which expects longitudes positive west; EPSG GeogCRSs NAD27(CGQ77) (code 4609) and NAD83(CSRS) (code 4617) have longitudes positive east. Can be taken as an approximate transformation NAD27(CGQ77) to WGS 84 - see code 1691.','Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4609','EPSG','4617','EPSG','1368',1.5,'EPSG','8656','Latitude and longitude difference file','CGQ77-98.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'SGQ-Can QC',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1846','ATS77 to NAD83(CSRS) (2)','Can be taken as an approximate transformation ATS77 to WGS 84 - see code 1689.','Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4122','EPSG','4617','EPSG','1533',1.5,'EPSG','8656','Latitude and longitude difference file','PE7783V2.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'PEI DOT-Can PEI',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1847','NAD27 to NAD83(CSRS) (2)','Can be taken as an approximate transformation NAD27 to WGS 84 - see code 1703.','Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4267','EPSG','4617','EPSG','2375',1.5,'EPSG','8656','Latitude and longitude difference file','SK27-98.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'SK PMC-Can SK',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1848','NAD83 to NAD83(CSRS) (2)','Can be taken as an approximate transformation NAD83 to WGS 84 - see code 1697.','Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4269','EPSG','4617','EPSG','2375',1.5,'EPSG','8656','Latitude and longitude difference file','SK83-98.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'SK PMC-Can SK',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1849','NAD83 to NAD83(CSRS) (3)','This gridded difference file AB_CSRS.DAC will need to be renamed to AB_CSRS.gsb to run in some software suites. Formats identical, but AB file is provincial fit only. Can be taken as an approximate transformation NAD83 to WGS 84 - see code 1702.','Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4269','EPSG','4617','EPSG','2376',1.5,'EPSG','8656','Latitude and longitude difference file','AB_CSRS.DAC',NULL,NULL,NULL,NULL,NULL,NULL,'AB Env-Can AB',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1850','ATS77 to NAD83(CSRS) (3)','Can be taken as an approximate transformation ATS77 to WGS 84 - see code 1851.','Accuracy 1-2 metres.','EPSG','9615','NTv2','EPSG','4122','EPSG','4617','EPSG','2313',1.5,'EPSG','8656','Latitude and longitude difference file','NS778301.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'NSGC-Can NS',0);
INSERT INTO "grid_transformation" VALUES('EPSG','1851','ATS77 to WGS 84 (3)','Parameter file is from ATS77 to NAD83(CSRS) (3) (code 1850) assuming that NAD83(CSRS) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9615','NTv2','EPSG','4122','EPSG','4326','EPSG','2313',1.0,'EPSG','8656','Latitude and longitude difference file','NS778301.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'EPSG-Can NS',0);
INSERT INTO "grid_transformation" VALUES('EPSG','3858','WGS 84 to EGM2008 height (1)','Replaces WGS 84 to EGM96 height (1) (CT code 15781). Grid spacing is 2.5 arc-minutes. For a smaller spacing (in principle more exact but requiring greater computing resources) see CT code 3859. An executable using spherical harmonics is also available.','Derivation of gravity-related heights from GPS observations.','EPSG','1025','Geographic3D to GravityRelatedHeight (EGM2008)','EPSG','4979','EPSG','3855','EPSG','1262',1.0,'EPSG','8666','Geoid (height correction) model file','Und_min2.5x2.5_egm2008_isw=82_WGS84_TideFree.gz',NULL,NULL,NULL,NULL,NULL,NULL,'NGA-World',0);
INSERT INTO "grid_transformation" VALUES('EPSG','3859','WGS 84 to EGM2008 height (2)','Replaces WGS 84 to EGM96 height (1) (CT code 15781). Grid spacing is 1 arc-minute. For a larger grid spacing (in principle less exact but requiring less computing resources) see CT code 3858. An executable using spherical harmonics is also available.','Derivation of gravity-related heights from GPS observations.','EPSG','1025','Geographic3D to GravityRelatedHeight (EGM2008)','EPSG','4979','EPSG','3855','EPSG','1262',0.5,'EPSG','8666','Geoid (height correction) model file','Und_min1x1_egm2008_isw=82_WGS84_TideFree.gz',NULL,NULL,NULL,NULL,NULL,NULL,'NGA-World',0);
INSERT INTO "grid_transformation" VALUES('EPSG','4459','NZGD2000 to NZVD2009 height (1)','Defines NZVD2009 vertical datum (datum code 1039, CRS code 4440).','Derivation of gravity-related heights from GPS observations.','EPSG','1030','Geographic3D to GravityRelatedHeight (NZgeoid)','EPSG','4959','EPSG','4440','EPSG','1175',0.1,'EPSG','8666','Geoid (height correction) model file','nzgeoid09.sid',NULL,NULL,NULL,NULL,NULL,NULL,'LINZ-NZ 2009',0);
INSERT INTO "grid_transformation" VALUES('EPSG','4561','RRAF 1991 to Martinique 1987 height (1)','May be used for transformations from WGS 84 to IGN 1987. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4557','EPSG','5756','EPSG','3276',998.0,'EPSG','8666','Geoid (height correction) model file','ggm00.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Mtq',0);
INSERT INTO "grid_transformation" VALUES('EPSG','4562','RRAF 1991 to Guadeloupe 1988 height (1)','May be used for transformations from WGS 84 to IGN 1988. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations. Accuracy 0.2m within onshore areas.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4557','EPSG','5757','EPSG','2892',0.2,'EPSG','8666','Geoid (height correction) model file','ggg00.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp GT',0);
INSERT INTO "grid_transformation" VALUES('EPSG','4563','RRAF 1991 to IGN 1988 MG height (1)','May be used for transformations from WGS 84 to IGN 1988 MG. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations. Accuracy 0.2m within onshore area.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4557','EPSG','5617','EPSG','2894',0.2,'EPSG','8666','Geoid (height correction) model file','ggg00_mg.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp MG',0);
INSERT INTO "grid_transformation" VALUES('EPSG','4564','RRAF 1991 to IGN 1988 SM height (1)','May be used for transformations from WGS 84 to IGN 1988 SM. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations. Accuracy 0.2m within onshore area.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4557','EPSG','5620','EPSG','2890',0.2,'EPSG','8666','Geoid (height correction) model file','ggg00_sm.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp StM',0);
INSERT INTO "grid_transformation" VALUES('EPSG','4565','RRAF 1991 to IGN 1988 LS height (1)','May be used for transformations from WGS 84 to IGN 1988 LS. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations. Accuracy 0.2m within onshore area.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4557','EPSG','5616','EPSG','2895',0.2,'EPSG','8666','Geoid (height correction) model file','ggg00_ls.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp LSt',0);
INSERT INTO "grid_transformation" VALUES('EPSG','4566','RRAF 1991 to IGN 1992 LD height (1)','Accuracy 0.5m. Replaced by RRAF 1991 to IGN 2008 LD height (1) (CT code 9132).','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4557','EPSG','5618','EPSG','2893',0.5,'EPSG','8666','Geoid (height correction) model file','ggg00_ld.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp Des',0);
INSERT INTO "grid_transformation" VALUES('EPSG','4567','RRAF 1991 to IGN 1988 SB height (1)','May be used for transformations from WGS 84 to IGN 1988 SB. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations. Accuracy 0.2m within onshore area.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4557','EPSG','5619','EPSG','2891',0.2,'EPSG','8666','Geoid (height correction) model file','ggg00_sb.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp StB',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5334','ETRS89 to Belfast height (1)','May be used for transformations from WGS 84 to Belfast. Replaced by ETRS89 to Belfast height (2) (code 7958).','Derivation of gravity-related heights from GPS observations.','EPSG','1045','Geographic3D to GravityRelatedHeight (OSGM02-Ire)','EPSG','4937','EPSG','5732','EPSG','2530',0.03,'EPSG','8666','Geoid (height correction) model file','OSGM02_NI.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK NI',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5335','ETRS89 to Malin Head height (1)','May be used for transformations from WGS 84 to Malin Head. Replaced by ETRS89 to Malin Head height (2) (code 7959).','Derivation of gravity-related heights from GPS observations.','EPSG','1045','Geographic3D to GravityRelatedHeight (OSGM02-Ire)','EPSG','4937','EPSG','5731','EPSG','1305',0.04,'EPSG','8666','Geoid (height correction) model file','OSGM02_RoI.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-Ire',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5338','OSGB 1936 to ETRS89 (1)','Approximate alternative to official OSTN02 method (tfm code 7952). May be taken as approximate transformation OSGB 1936 to WGS 84 - see code 5339.','Accuracy at 2000 test points compared to official OSTN02 (tfm code 1039): latitude 0.5mm average, 17mm maximum; longitude 0.8mm average, 23mm maximum.','EPSG','9615','NTv2','EPSG','4277','EPSG','4258','EPSG','1264',0.03,'EPSG','8656','Latitude and longitude difference file','OSTN02_NTv2.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OSGB-UK Gbr02 NT',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5339','OSGB 1936 to WGS 84 (7)','Parameter values taken from OSGB 1936 to ETRS89 (1) (tfm code 5338) assuming that ETRS89 is coincident with WGS 84 within the accuracy of the tfm. Within accuracy of the tfm equivalent to OSGB 1936 / British National Grid to WGS 84 (2) (tfm code 15956).','Accuracy 1m.','EPSG','9615','NTv2','EPSG','4277','EPSG','4326','EPSG','1264',1.0,'EPSG','8656','Latitude and longitude difference file','OSTN02_NTv2.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-UK Gbr02 NT',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5409','NGVD29 height to NAVD88 height (1)','Interpolation within the gridded data file may be made using any of the horizontal CRSs NAD27, NAD83 or NAD83(HARN).','Accuracy 2cm','EPSG','9658','VERTCON','EPSG','5702','EPSG','5703','EPSG','2950',0.02,'EPSG','8732','Vertical offset file','vertconw.94',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-US Conus W',1);
INSERT INTO "grid_transformation" VALUES('EPSG','5410','NGVD29 height to NAVD88 height (2)','Interpolation within the gridded data file may be made using any of the horizontal CRSs NAD27, NAD83 or NAD83(HARN).','Accuracy 2cm','EPSG','9658','VERTCON','EPSG','5702','EPSG','5703','EPSG','2949',0.02,'EPSG','8732','Vertical offset file','vertconc.94',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-US Conus C',1);
INSERT INTO "grid_transformation" VALUES('EPSG','5411','NGVD29 height to NAVD88 height (3)','Interpolation within the gridded data file may be made using any of the horizontal CRSs NAD27, NAD83 or NAD83(HARN).','Accuracy 2cm','EPSG','9658','VERTCON','EPSG','5702','EPSG','5703','EPSG','2948',0.02,'EPSG','8732','Vertical offset file','vertcone.94',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-US Conus E',1);
INSERT INTO "grid_transformation" VALUES('EPSG','5502','RGAF09 to Martinique 1987 height (1)','Replaces tfm from RRAF 1991, code 4561. May be used for transformations from WGS 84 to IGN 1987. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','5488','EPSG','5756','EPSG','3276',998.0,'EPSG','8666','Geoid (height correction) model file','gg10_mart.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Mtq',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5503','RGAF09 to Guadeloupe 1988 height (1)','Replaces tfm from RRAF 1991, code 4562. May be used for transformations from WGS 84 to IGN 1988. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations. Accuracy 0.2m within onshore areas.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','5488','EPSG','5757','EPSG','2892',0.2,'EPSG','8666','Geoid (height correction) model file','gg10_gtbt.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp GT',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5504','RGAF09 to IGN 1988 MG height (1)','Replaces tfm from RRAF 1991, code 4563. May be used for transformations from WGS 84 to IGN 1988 MG. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations. Accuracy 0.2m within onshore area.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','5488','EPSG','5617','EPSG','2894',0.2,'EPSG','8666','Geoid (height correction) model file','gg10_mg.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp MG',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5505','RGAF09 to IGN 1988 SM height (1)','Replaces tfm from RRAF 1991, code 4564. May be used for transformations from WGS 84 to IGN 1988 SM. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations. Accuracy 0.2m within onshore area.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','5488','EPSG','5620','EPSG','2890',0.2,'EPSG','8666','Geoid (height correction) model file','gg10_sm.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp StM',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5506','RGAF09 to IGN 1988 LS height (1)','Replaces tfm from RRAF 1991, code 4565. May be used for transformations from WGS 84 to IGN 1988 LS. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations. Accuracy 0.2m within onshore area.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','5488','EPSG','5616','EPSG','2895',0.2,'EPSG','8666','Geoid (height correction) model file','gg10_ls.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp LSt',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5507','RGAF09 to IGN 1992 LD height (1)','Replaces tfm from RRAF 1991, code 4566. Replaced by RGAF09 to IGN 2008 LD height (1), CT code 9131. May be used for transformations from WGS 84 to IGN 1992 LD. Accuracy at each 0.025° grid node is given within the geoid model file, approx. average 0.5m.','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','5488','EPSG','5618','EPSG','2893',0.5,'EPSG','8666','Geoid (height correction) model file','gg10_ld.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp Des',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5508','RGAF09 to IGN 1988 SB height (1)','Replaces tfm from RRAF 1991, code 4567. May be used for transformations from WGS 84 to IGN 1988 SB. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations. Accuracy 0.2m within onshore area.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','5488','EPSG','5619','EPSG','2891',0.2,'EPSG','8666','Geoid (height correction) model file','gg10_sb.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp StB',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5525','Corrego Alegre 1961 to SIRGAS 2000 (1)','May be used as transformation between Corrego Alegre 1961 and WGS 84 - see tfm code 5540.','Accuracy 2m.','EPSG','9615','NTv2','EPSG','5524','EPSG','4674','EPSG','3874',2.0,'EPSG','8656','Latitude and longitude difference file','CA61_003.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'IBGE-Bra',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5526','Corrego Alegre 1970-72 to SIRGAS 2000 (1)','May be used as transformation between Corrego Alegre 1970-72 and WGS 84 - see tfm code 5541.','Accuracy 2m.','EPSG','9615','NTv2','EPSG','4225','EPSG','4674','EPSG','1293',2.0,'EPSG','8656','Latitude and longitude difference file','CA7072_003.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'IBGE-Bra',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5528','SAD69 to SIRGAS 2000 (2)','For IBGE, in onshore east and south Brazil only, replaces SAD69 to SIRGAS 2000 (1) (tfm code 15485) for pre-1996 data based on the classical geodetic network. May be used as transformation between SAD69 and WGS 84 - see tfm code 5542.','Accuracy 1m. Should be used only for pre-1996 data related to the classical geodetic network.','EPSG','9615','NTv2','EPSG','4618','EPSG','4674','EPSG','3887',1.0,'EPSG','8656','Latitude and longitude difference file','SAD69_003.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'IBGE-Bra',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5529','SAD69(96) to SIRGAS 2000 (1)','May be used as transformation between SAD69(96) and WGS 84 - see tfm code 5543.','Accuracy 0.5m. Should be used for post-1996 data based on the classical geodetic network.','EPSG','9615','NTv2','EPSG','5527','EPSG','4674','EPSG','3887',0.5,'EPSG','8656','Latitude and longitude difference file','SAD96_003.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'IBGE-Bra',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5540','Corrego Alegre 1961 to WGS 84 (1)','Parameters from Corrego Alegre 1961 to SIRGAS 2000 (1) (tfm code 5525) assuming that SIRGAS 2000 and WGS 84 are equal within the accuracy of the transformation.','Accuracy 2m.','EPSG','9615','NTv2','EPSG','5524','EPSG','4326','EPSG','3874',2.0,'EPSG','8656','Latitude and longitude difference file','CA61_003.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-Bra',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5541','Corrego Alegre 1970-72 to WGS 84 (2)','Parameters from Corrego Alegre 1970-72 to SIRGAS 2000 (1) (tfm code 5526) assuming that SIRGAS 2000 and WGS 84 are equal within the accuracy of the transformation.','Accuracy 2m.','EPSG','9615','NTv2','EPSG','4225','EPSG','4326','EPSG','1293',2.0,'EPSG','8656','Latitude and longitude difference file','CA7072_003.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-Bra',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5542','SAD69 to WGS 84 (15)','Parameters from SAD69 to SIRGAS 2000 (2) (tfm code 5528) assuming that SIRGAS 2000 and WGS 84 are equal within the accuracy of the transformation.','Accuracy 2m. Should be used only for pre-1996 data related to the classical geodetic network.','EPSG','9615','NTv2','EPSG','4618','EPSG','4326','EPSG','3887',2.0,'EPSG','8656','Latitude and longitude difference file','SAD69_003.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-Bra',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5543','SAD69(96) to WGS 84 (1)','Parameters from SAD69(96) to SIRGAS 2000 (1) (tfm code 5529) assuming that SIRGAS 2000 and WGS 84 are equal within the accuracy of the transformation.','Accuracy 1m. Should be used for post-1996 data based on the classical geodetic network.','EPSG','9615','NTv2','EPSG','5527','EPSG','4326','EPSG','3887',1.0,'EPSG','8656','Latitude and longitude difference file','SAD96_003.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-Bra',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5594','FEH2010 to FCSVR10 height (1)','','Derivation of gravity-related heights from GPS observations.','EPSG','1030','Geographic3D to GravityRelatedHeight (NZgeoid)','EPSG','5592','EPSG','5597','EPSG','3890',0.1,'EPSG','8666','Geoid (height correction) model file','fehmarn_geoid10.gri',NULL,NULL,NULL,NULL,NULL,NULL,'FEM-Dnk-Deu Feh',1);
INSERT INTO "grid_transformation" VALUES('EPSG','5626','FEH2010 to FCSVR10 height (1)','','Derivation of gravity-related heights from GPS observations.','EPSG','1047','Geographic3D to GravityRelatedHeight (Gravsoft)','EPSG','5592','EPSG','5597','EPSG','3890',0.1,'EPSG','8666','Geoid (height correction) model file','fehmarn_geoid10.gri',NULL,NULL,NULL,NULL,NULL,NULL,'FEM-Dnk-Deu Feh',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5656','GDA94 to AHD height (49)','Replaces AusGeoid98 model. Uses AusGeoid09 model which uses bi-cubic interpolation; bi-linear interpolation of the grid file will give results agreeing to within 1cm 99.97% of the time. May be used for transformations from WGS 84 to AHD.','Derivation of gravity-related heights from GPS observations.','EPSG','1048','Geographic3D to GravityRelatedHeight (Ausgeoid v2)','EPSG','4939','EPSG','5711','EPSG','1281',0.03,'EPSG','8666','Geoid (height correction) model file','AUSGeoid09_GDA94_V1.01_DOV_windows.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus09 mainland',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5657','GDA94 to AHD (Tasmania) height (2)','Replaces AusGeoid98 model. Uses AusGeoid09 model which uses bi-cubic interpolation; bi-linear interpolation of the grid file will give results agreeing to within 1cm 99.97% of the time. May be used for transformations from WGS 84 to AHD (Tasmania).','Derivation of gravity-related heights from GPS observations.','EPSG','1048','Geographic3D to GravityRelatedHeight (Ausgeoid v2)','EPSG','4939','EPSG','5712','EPSG','2947',0.03,'EPSG','8666','Geoid (height correction) model file','AUSGeoid09_GDA94_V1.01_DOV_windows.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus09 Tas',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5661','ED50 to ETRS89 (14)','When included in concatenation from and to projected CRSs, gives same results as ED50 / UTM zone 31N to ETRS89 / UTM zone 31N (1) - see CRS code 5166.','For applications to an accuracy of 0.05 m (map scales not larger than 1:1000).','EPSG','9615','NTv2','EPSG','4230','EPSG','4258','EPSG','3732',0.05,'EPSG','8656','Latitude and longitude difference file','100800401.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'ICC-Esp Cat',0);
INSERT INTO "grid_transformation" VALUES('EPSG','5891','MGI to ETRS89 (5)','Not to be used for cadastral purposes as it does not comply with the rules for control network tie-in as per Paragraph 3 of the Land Survey Regulations (Vermessungsverordnung) 2010.','For applications to an accuracy of 1 decimetre: GIS, topographic mapping, engineering survey. (See remarks for cadastral survey).','EPSG','9615','NTv2','EPSG','4312','EPSG','4258','EPSG','1037',0.15,'EPSG','8656','Latitude and longitude difference file','AT_GIS_GRID.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'BEV-Aut NTv2',0);
INSERT INTO "grid_transformation" VALUES('EPSG','6138','CIGD11 to GCVD54 height (ft) (1)','Care: source CRS heights are in metres, transformation file parameter values and target CRS heights are in feet.','Derivation of gravity-related heights from GPS observations.','EPSG','1050','Geographic3D to GravityRelatedHeight (CI)','EPSG','6134','EPSG','6130','EPSG','3185',0.03,'EPSG','8666','Geoid (height correction) model file','GCGM0811.TXT',NULL,NULL,NULL,NULL,NULL,NULL,'LSD-Cym',0);
INSERT INTO "grid_transformation" VALUES('EPSG','6139','CIGD11 to LCVD61 height (ft) (1)','Care: source CRS heights are in metres, transformation file parameter values and target CRS heights are in feet.','Derivation of gravity-related heights from GPS observations.','EPSG','1050','Geographic3D to GravityRelatedHeight (CI)','EPSG','6134','EPSG','6131','EPSG','4121',0.03,'EPSG','8666','Geoid (height correction) model file','LCGM0811.TXT',NULL,NULL,NULL,NULL,NULL,NULL,'LSD-Cym',0);
INSERT INTO "grid_transformation" VALUES('EPSG','6140','CIGD11 to CBVD61 height (ft) (1)','Care: source CRS heights are in metres, transformation file parameter values and target CRS heights are in feet.','Derivation of gravity-related heights from GPS observations.','EPSG','1050','Geographic3D to GravityRelatedHeight (CI)','EPSG','6134','EPSG','6132','EPSG','3207',0.03,'EPSG','8666','Geoid (height correction) model file','CBGM0811.TXT',NULL,NULL,NULL,NULL,NULL,NULL,'LSD-Cym',0);
INSERT INTO "grid_transformation" VALUES('EPSG','6188','Lisbon to ETRS89 (4)','Derived from 1129 common stations in the national geodetic network. Residuals at 130 further test points average 0.09m, maximum 0.30m.','Decimetre accuracy.','EPSG','9615','NTv2','EPSG','4207','EPSG','4258','EPSG','1294',0.1,'EPSG','8656','Latitude and longitude difference file','DLx_ETRS89_geo.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'IGP-Prt 0.1m',0);
INSERT INTO "grid_transformation" VALUES('EPSG','6189','Datum 73 to ETRS89 (6)','Derived from 1129 common stations in the national geodetic network. Residuals at 130 further test points average 0.06m, maximum 0.16m.','Decimetre accuracy.','EPSG','9615','NTv2','EPSG','4274','EPSG','4258','EPSG','1294',0.1,'EPSG','8656','Latitude and longitude difference file','D73_ETRS89_geo.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'IGP-Prt 0.1m',0);
INSERT INTO "grid_transformation" VALUES('EPSG','6209','NAD27 to NAD83(CSRS) (4)','Introduced in 2011.  Precision of 20 cm in area covered by the input data set and 40 cm anywhere else, with the exception of the northwest area of the province (near the border with Quebec) where the precision deteriorates to 80 cm.','Used in the GeoNB Coordinate Transformation Service.','EPSG','9615','NTv2','EPSG','4267','EPSG','4617','EPSG','1447',0.8,'EPSG','8656','Latitude and longitude difference file','NB2783v2.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'SNB-Can NB',0);
INSERT INTO "grid_transformation" VALUES('EPSG','6326','NAD83(2011) to NAVD88 height (1)','Uses Geoid12B hybrid model. Renamed from Geoid12A but with no data changes. See information source for further information.','Derivation of approximate gravity-related heights from GPS observations.','EPSG','9665','Geographic3D to GravityRelatedHeight (US .gtx)','EPSG','6319','EPSG','5703','EPSG','1323',0.1,'EPSG','8666','Geoid (height correction) model file','g2012Bu0.bin',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-US Conus',0);
INSERT INTO "grid_transformation" VALUES('EPSG','6327','NAD83(2011) to NAVD88 height (2)','Uses Geoid12B hybrid model. Renamed from Geoid12A but with no data changes. See information source for further information.','Derivation of approximate gravity-related heights from GPS observations.','EPSG','9665','Geographic3D to GravityRelatedHeight (US .gtx)','EPSG','6319','EPSG','5703','EPSG','1330',0.2,'EPSG','8666','Geoid (height correction) model file','g2012Ba0.bin',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-US AK',0);
INSERT INTO "grid_transformation" VALUES('EPSG','6648','NAD83(CSRS) to CGVD2013 height (1)','Uses CGG2013 model which uses bi-quadratic interpolation; bi-linear interpolation of the grid file will give results agreeing to within 1cm 99.97% of the time.','Derivation of gravity-related heights from GPS observations.','EPSG','1060','Geographic3D to GravityRelatedHeight (CGG2013)','EPSG','4955','EPSG','6647','EPSG','1061',0.03,'EPSG','8666','Geoid (height correction) model file','CGG2013n83.byn',NULL,NULL,NULL,NULL,NULL,NULL,'NRC Can CGG2013',0);
INSERT INTO "grid_transformation" VALUES('EPSG','6712','Tokyo to JGD2000 (2)','NTv2 grid derived by ESRI from that supplied by GSI in application tky2jgd. After Tohoku earthquake of 2011 accuracy in northern Honshu reduced to 1-5m and in this area replaced by Tokyo to JGD2011 (tfm code 6714).','Surveying, mapping and civil engineering.','EPSG','9615','NTv2','EPSG','4301','EPSG','4612','EPSG','3957',0.2,'EPSG','8656','Latitude and longitude difference file','tky2jgd.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-Jpn',0);
INSERT INTO "grid_transformation" VALUES('EPSG','6713','JGD2000 to JGD2011 (1)','NTv2 grid derived by ESRI from that supplied by GSI in application patchjgd.','Surveying, mapping and civil engineering purposes','EPSG','9615','NTv2','EPSG','4612','EPSG','6668','EPSG','4170',0.2,'EPSG','8656','Latitude and longitude difference file','touhokutaiheiyouoki2011.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-Jpn N Honshu',0);
INSERT INTO "grid_transformation" VALUES('EPSG','6740','Tokyo to JGD2011 (2)','Parameter values from Tokyo to JGD2000 (2) (tfm code 6712) as  in area of applicability JGD2011 = JGD2000. NTv2 grid derived by ESRI from that supplied by GSI in application tky2jgd. See Tokyo to JGD2011 (1) (tfm code 6714) for northern Honshu area.','Surveying, mapping and civil engineering.','EPSG','9615','NTv2','EPSG','4301','EPSG','6668','EPSG','4194',0.2,'EPSG','8656','Latitude and longitude difference file','tky2jgd.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-Jpn ex N Honshu',0);
INSERT INTO "grid_transformation" VALUES('EPSG','6946','TM75 to ETRS89 (3)','Approximate alternative to official OS polynomial method (tfm code 1041). May be taken as approximate transformation TM75 to WGS 84 - see code 6947.','Emulation of official polynomial (tfm code 1041). Accuracy of emulation at 23000 test points compared to official polynomial: 6mm maximum.','EPSG','9615','NTv2','EPSG','4300','EPSG','4258','EPSG','1305',0.41,'EPSG','8656','Latitude and longitude difference file','tm75_etrs89.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OSI-Ire NT',0);
INSERT INTO "grid_transformation" VALUES('EPSG','6947','TM75 to WGS 84 (4)','Parameter values taken from TM75 to ETRS89 (3) (tfm code 6946) assuming that ETRS89 is coincident with WGS 84 within the accuracy of the tfm. Within accuracy of the tfm equivalent to TM75 to WGS 84 (1) (tfm code 1042).','Emulation of polynomial (tfm code 1042). Accuracy 1m.','EPSG','9615','NTv2','EPSG','4300','EPSG','4326','EPSG','1305',1.0,'EPSG','8656','Latitude and longitude difference file','tm75_etrs89.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-Ire NT',0);
INSERT INTO "grid_transformation" VALUES('EPSG','6948','RD/83 to ETRS89 (2)','Recommended by Saxony State Spatial Data and Land Survey Corporation for transformations based on official geospatial data of Saxony. See www.landesvermessung.sachsen.de/inhalt/etrs/method/method.html#ntv2.','Cadastre. Accuracy 3mm within Saxony; within the rest of RD/83 definition area results at least coincide with EPSG transformation code15868.','EPSG','9615','NTv2','EPSG','4745','EPSG','4258','EPSG','2545',0.03,'EPSG','8656','Latitude and longitude difference file','NTv2_SN.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'GeoSN-Deu SN',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7000','Amersfoort to ETRS89 (7)','Consistent to within 1mm with official RNAPTRANS(TM)2008 at ground level onshore and at MSL offshore. The horizontal deviation using this NTv2 grid is approximately 1mm per 50m height difference from ground level or MSL.','Approximation of horizontal component of official 3D RDNAPTRANS(TM) transformation, which since 1st October 2000 has defined Amersfoort geodetic datum.','EPSG','9615','NTv2','EPSG','4289','EPSG','4258','EPSG','1275',0.001,'EPSG','8656','Latitude and longitude difference file','rdtrans2008.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'RDNAP-Nld 2008',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7001','ETRS89 to NAP height (1)','Alternative to vertical component of official 3D RDNAPTRANS(TM)2008. The naptrans2008 correction grid incorporates the NLGEO2004 geoid model plus a fixed offset.','Derivation of gravity-related heights from GPS observations. When used in conjunction with transformation Amersfoort to ETRS89 (7) (code 7000), this transformation is reversible.','EPSG','9665','Geographic3D to GravityRelatedHeight (US .gtx)','EPSG','4937','EPSG','5709','EPSG','1275',0.01,'EPSG','8666','Geoid (height correction) model file','naptrans2008.gtx',NULL,NULL,NULL,NULL,NULL,NULL,'RDNAP-Nld 2008',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7646','NAD83(2011) to PRVD02 height (1)','Uses Geoid12B hybrid model. See information source for further information.','Derivation of approximate gravity-related heights from GPS observations.','EPSG','9665','Geographic3D to GravityRelatedHeight (US .gtx)','EPSG','6319','EPSG','6641','EPSG','3294',0.1,'EPSG','8666','Geoid (height correction) model file','g2012Bp0.bin',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-Pri 12B',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7647','NAD83(2011) to VIVD09 height (1)','Uses Geoid12B hybrid model. See information source for further information.','Derivation of approximate gravity-related heights from GPS observations.','EPSG','9665','Geographic3D to GravityRelatedHeight (US .gtx)','EPSG','6319','EPSG','6642','EPSG','3330',0.1,'EPSG','8666','Geoid (height correction) model file','g2012Bp0.bin',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-Vir 12B',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7648','NAD83(MA11) to GUVD04 height (1)','Uses Geoid12B hybrid model. See information source for further information.','Derivation of approximate gravity-related heights from GPS observations.','EPSG','9665','Geographic3D to GravityRelatedHeight (US .gtx)','EPSG','6323','EPSG','6644','EPSG','3255',0.1,'EPSG','8666','Geoid (height correction) model file','g2012Bg0.bin',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-Gum 12B',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7649','NAD83(MA11) to NMVD03 height (1)','Uses Geoid12B hybrid model. See information source for further information.','Derivation of approximate gravity-related heights from GPS observations.','EPSG','9665','Geographic3D to GravityRelatedHeight (US .gtx)','EPSG','6323','EPSG','6640','EPSG','4171',0.1,'EPSG','8666','Geoid (height correction) model file','g2012Bg0.bin',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-Mnp 12B',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7650','NAD83(PA11) to ASVD02 height (1)','Uses Geoid12B hybrid model. See information source for further information.','Derivation of approximate gravity-related heights from GPS observations.','EPSG','9665','Geographic3D to GravityRelatedHeight (US .gtx)','EPSG','6320','EPSG','6643','EPSG','2288',0.1,'EPSG','8666','Geoid (height correction) model file','g2012Bs0.bin',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-Asm 12B',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7655','PNG94 to PNG08 height (1)','','Derivation of gravity-related heights from GPS observations.','EPSG','1059','Geographic3D to GravityRelatedHeight (PNG)','EPSG','5545','EPSG','7447','EPSG','4384',0.2,'EPSG','8666','Geoid (height correction) model file','PNG08.DAT',NULL,NULL,NULL,NULL,NULL,NULL,'QC-Png',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7673','CH1903 to CHTRF95 (1)','Equivalent to concatenation of transformations 15486 and 1509 to within 2cm. Also used as transformation between CH1903 and ETRS89 (see code 7674).','Approximation (to better than 2m) using NTv2 method of results of FINELTRA programme concatenated with LV-95 parameters.','EPSG','9615','NTv2','EPSG','4149','EPSG','4151','EPSG','1286',0.25,'EPSG','8656','Latitude and longitude difference file','CHENyx06_ETRS.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'BfL-Che NTv2',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7674','CH1903 to ETRS89 (2)','Replaces tfm code 1646. Equivalent to concatenation of transformations 15486 and 1647 to within 2cm. Also used as transformation between CH1903 and CHTRF95 (see code 7673). May be used as approximate tfm CH1903 to WGS 84 - see code 7788.','Approximation (to better than 2cm) using NTv2 method of results of FINELTRA programme concatenated with LV-95 parameters.','EPSG','9615','NTv2','EPSG','4149','EPSG','4258','EPSG','1286',0.25,'EPSG','8656','Latitude and longitude difference file','CHENyx06_ETRS.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'BfL-Che NTv2',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7709','OSGB 1936 to ETRS89 (2)','Approximate alternative to official OSTN15 method (tfm code 7953). May be taken as approximate transformation OSGB 1936 to WGS 84 - see code 7710. Replaces OSGB 1936 to ETRS89 (1) (tfm code 5338).','Accuracy at 2000 test points compared to official OSTN15 (tfm code 7708): latitude 0.5mm average, 17mm maximum; longitude 0.8mm average, 23mm maximum.','EPSG','9615','NTv2','EPSG','4277','EPSG','4258','EPSG','4390',0.03,'EPSG','8656','Latitude and longitude difference file','OSTN15_NTv2_OSGBtoETRS.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OSGB-UK Gbr15 NT',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7710','OSGB 1936 to WGS 84 (9)','Parameter values taken from OSGB 1936 to ETRS89 (3) (tfm code 7709) assuming that ETRS89 is coincident with WGS 84 within the accuracy of the tfm. Replaces OSGB 1936 to WGS 84 (7) (tfm code 5339).','Accuracy 1m.','EPSG','9615','NTv2','EPSG','4277','EPSG','4326','EPSG','4390',1.0,'EPSG','8656','Latitude and longitude difference file','OSTN15_NTv2_OSGBtoETRS.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-UK Gbr15 NT',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7711','ETRS89 to Newlyn height (2)','OSGM15 supersedes OSGM02 geoid model. Replaces ETRS89 to Newlyn height (1) (tfm code 10021).','Derivation of gravity-related heights from OSGM15 geoid model.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5701','EPSG','2792',0.008,'EPSG','8666','Geoid (height correction) model file','OSTN15_OSGM15_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Gbr 2015',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7712','ETRS89 to Newlyn (Orkney Isles) height (2)','OSGM15 supersedes OSGM02 geoid model. Replaces ETRS89 to Newlyn (Orkney Isles) height (1) (tfm code 10029).','Derivation of gravity-related heights from OSGM15 geoid model.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5740','EPSG','2793',0.017,'EPSG','8666','Geoid (height correction) model file','OSTN15_OSGM15_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Ork 2015',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7713','ETRS89 to Newlyn (Offshore) height (1)','Replaces ETRS89 to Fair Isle/Flannan Isles/Foula/North Rona/St Kilda/Sule Skerry height (1) (tfm codes 10024-26, 10030-31 and 10034).','Derivation of gravity-related heights from OSGM15 geoid model.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','7707','EPSG','4391',0.02,'EPSG','8666','Geoid (height correction) model file','OSTN15_OSGM15_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Off 2015',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7714','ETRS89 to Lerwick height (2)','OSGM15 supersedes OSGM02 geoid model. Replaces ETRS89 to Lerwick height (1) (tfm code 10027).','Derivation of gravity-related heights from OSGM15 geoid model.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5742','EPSG','2795',0.018,'EPSG','8666','Geoid (height correction) model file','OSTN15_OSGM15_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS -UK Shet 2015',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7715','ETRS89 to Stornoway height (2)','OSGM15 supersedes OSGM02 geoid model. Replaces ETRS89 to Stornaway height (1) (tfm code 10033).','Derivation of gravity-related heights from OSGM15 geoid model.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5746','EPSG','2799',0.011,'EPSG','8666','Geoid (height correction) model file','OSTN15_OSGM15_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Heb 2015',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7716','ETRS89 to St. Marys height (2)','OSGM15 supersedes OSGM02 geoid model. Replaces ETRS89 to St Marys height (1) (tfm code 10032).','Derivation of gravity-related heights from OSGM15 geoid model.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5749','EPSG','2802',0.01,'EPSG','8666','Geoid (height correction) model file','OSTN15_OSGM15_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Scilly 2015',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7717','ETRS89 to Douglas height (2)','OSGM15 supersedes OSGM02 geoid model. Replaces ETRS89 to Douglas height (1) (tfm code 10023).','Derivation of gravity-related heights from OSGM15 geoid model.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5750','EPSG','2803',0.03,'EPSG','8666','Geoid (height correction) model file','OSTN15_OSGM15_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Man 2015',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7718','ETRS89 to Belfast height (2)','OSGM15 supersedes OSGM02 geoid model. Replaces ETRS89 to Belfast height (1) (tfm code 5334).','Derivation of gravity-related heights from OSGM15 geoid model.','EPSG','1045','Geographic3D to GravityRelatedHeight (OSGM02-Ire)','EPSG','4937','EPSG','5732','EPSG','2530',0.014,'EPSG','8666','Geoid (height correction) model file','OSGM15_Belfast.gri',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK NI 2015',1);
INSERT INTO "grid_transformation" VALUES('EPSG','7719','ETRS89 to Malin Head height (2)','OSGM15 supersedes OSGM02 geoid model. Replaces ETRS89 to Malin Head height (1) (tfm code 5335).','Derivation of gravity-related heights from OSGM15 geoid model.','EPSG','1045','Geographic3D to GravityRelatedHeight (OSGM02-Ire)','EPSG','4937','EPSG','5731','EPSG','1305',0.023,'EPSG','8666','Geoid (height correction) model file','OSGM15_Malin.gri',NULL,NULL,NULL,NULL,NULL,NULL,'OS-Ire 2015',1);
INSERT INTO "grid_transformation" VALUES('EPSG','7788','CH1903 to WGS 84 (3)','Parameter values from CH1903 to ETRS89 (2) (code 7674) assuming that ETRS89 is equivalent to WGS 84 within the accuracy of the transformation. Equivalent to concatenation of transformations 15486 and 1676.','Approximation at the +/- 1.5m level assuming that CH1903 is approximately equivalent to CH1903+ and that ETRS89 is equivalent to WGS 84.','EPSG','9615','NTv2','EPSG','4149','EPSG','4326','EPSG','1286',1.5,'EPSG','8656','Latitude and longitude difference file','CHENyx06_ETRS.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-Che NTv2',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7840','NZGD2000 to NZVD2016 height (1)','Defines NZVD2016 vertical datum (datum code 1169, CRS code 7839).','Derivation of gravity-related heights from GPS observations.','EPSG','1030','Geographic3D to GravityRelatedHeight (NZgeoid)','EPSG','4959','EPSG','7839','EPSG','1175',0.1,'EPSG','8666','Geoid (height correction) model file','New_Zealand_Quasigeoid_2016.csv',NULL,NULL,NULL,NULL,NULL,NULL,'LINZ-NZ 2016',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7860','NZVD2016 height to Auckland 1946 height (1)','Derived at 260 control points. Mean offset 0.292m, standard deviation 0.029m, maximum difference from mean 0.075m.','Transformation between national and local height systems.','EPSG','1071','Vertical Offset by Grid Interpolation (NZLVD)','EPSG','7839','EPSG','5759','EPSG','3764',0.02,'EPSG','8732','Vertical offset file','auckland-1946-to-nzvd2016-conversion.csv',NULL,NULL,NULL,NULL,'EPSG','4167','LINZ-NZ AUCK',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7861','NZVD2016 height to Bluff 1955 height (1)','Derived at 71 control points. Mean offset 0.273m, standard deviation 0.034m, maximum difference from mean 0.079m.','Transformation between national and local height systems.','EPSG','1071','Vertical Offset by Grid Interpolation (NZLVD)','EPSG','7839','EPSG','5760','EPSG','3801',0.02,'EPSG','8732','Vertical offset file','bluff-1955-to-nzvd2016-conversion.csv',NULL,NULL,NULL,NULL,'EPSG','4167','LINZ-NZ BLUF',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7862','NZVD2016 height to Dunedin 1958 height (1)','Derived at 197 control points. Mean offset 0.326m, standard deviation 0.043m, maximum difference from mean 0.152m.','Transformation between national and local height systems.','EPSG','1071','Vertical Offset by Grid Interpolation (NZLVD)','EPSG','7839','EPSG','5761','EPSG','3803',0.02,'EPSG','8732','Vertical offset file','dunedin-1958-to-nzvd2016-conversion.csv',NULL,NULL,NULL,NULL,'EPSG','4167','LINZ-NZ DUNE',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7863','NZVD2016 height to Dunedin-Bluff 1960 height (1)','Derived at 205 control points. Mean offset 0.254m, standard deviation 0.039m, maximum difference from mean 0.11m.','Transformation between national and local height systems.','EPSG','1071','Vertical Offset by Grid Interpolation (NZLVD)','EPSG','7839','EPSG','4458','EPSG','3806',0.02,'EPSG','8732','Vertical offset file','dunedin-bluff-1960-to-nzvd2016-conversion.csv',NULL,NULL,NULL,NULL,'EPSG','4167','LINZ-NZ DUBL',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7864','NZVD2016 height to Gisborne 1926 height (1)','Derived at 274 control points. Mean offset 0.343m, standard deviation 0.025m, maximum difference from mean 0.09m.','Transformation between national and local height systems.','EPSG','1071','Vertical Offset by Grid Interpolation (NZLVD)','EPSG','7839','EPSG','5762','EPSG','3771',0.02,'EPSG','8732','Vertical offset file','gisborne-1926-to-nzvd2016-conversion.csv',NULL,NULL,NULL,NULL,'EPSG','4167','LINZ-NZ GISB',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7865','NZVD2016 height to Lyttelton 1937 height (1)','Derived at 923 control points. Mean offset 0.34m, standard deviation 0.041m, maximum difference from mean 0.149m.','Transformation between national and local height systems.','EPSG','1071','Vertical Offset by Grid Interpolation (NZLVD)','EPSG','7839','EPSG','5763','EPSG','3804',0.01,'EPSG','8732','Vertical offset file','lyttelton-1937-to-nzvd2016-conversion.csv',NULL,NULL,NULL,NULL,'EPSG','4167','LINZ-NZ LYTT',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7866','NZVD2016 height to Moturiki 1953 height  (1)','Derived at 519 control points. Mean offset 0.309m, standard deviation 0.071m, maximum difference from mean 0.231m.','Transformation between national and local height systems.','EPSG','1071','Vertical Offset by Grid Interpolation (NZLVD)','EPSG','7839','EPSG','5764','EPSG','3768',0.02,'EPSG','8732','Vertical offset file','moturiki-1953-to-nzvd2016-conversion.csv',NULL,NULL,NULL,NULL,'EPSG','4167','LINZ-NZ MOTU',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7867','NZVD2016 height to Napier 1962 height (1)','Derived at 207 control points. Mean offset 0.203m, standard deviation 0.034m, maximum difference from mean 0.096m.','Transformation between national and local height systems.','EPSG','1071','Vertical Offset by Grid Interpolation (NZLVD)','EPSG','7839','EPSG','5765','EPSG','3772',0.02,'EPSG','8732','Vertical offset file','napier-1962-to-nzvd2016-conversion.csv',NULL,NULL,NULL,NULL,'EPSG','4167','LINZ-NZ NAPI',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7868','NZVD2016 height to Nelson 1955 height (1)','Derived at 256 control points. Mean offset 0.329m, standard deviation 0.039m, maximum difference from mean 0.114m.','Transformation between national and local height systems.','EPSG','1071','Vertical Offset by Grid Interpolation (NZLVD)','EPSG','7839','EPSG','5766','EPSG','3802',0.02,'EPSG','8732','Vertical offset file','nelson-1955-to-nzvd2016-conversion.csv',NULL,NULL,NULL,NULL,'EPSG','4167','LINZ-NZ NELS',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7869','NZVD2016 height to One Tree Point 1964 height (1)','Derived at 137 control points. Mean offset 0.077m, standard deviation 0.042m, maximum difference from mean 0.107m.','Transformation between national and local height systems.','EPSG','1071','Vertical Offset by Grid Interpolation (NZLVD)','EPSG','7839','EPSG','5767','EPSG','3762',0.01,'EPSG','8732','Vertical offset file','onetreepoint-1964-to-nzvd2016-conversion.csv',NULL,NULL,NULL,NULL,'EPSG','4167','LINZ-NZ ONTP',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7870','NZVD2016 height to Stewart Island 1977 height (1)','Derived at 4 control points. Mean offset 0.299m, standard deviation 0.025m, maximum difference from mean 0.039m.','Transformation between national and local height systems.','EPSG','1071','Vertical Offset by Grid Interpolation (NZLVD)','EPSG','7839','EPSG','5772','EPSG','3338',0.18,'EPSG','8732','Vertical offset file','stewartisland-1977-to-nzvd2016-conversion.csv',NULL,NULL,NULL,NULL,'EPSG','4167','LINZ-NZ STWT',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7871','NZVD2016 height to Taranaki 1970 height (1)','Derived at 125 control points. Mean offset 0.286m, standard deviation 0.026m, maximum difference from mean 0.07m.','Transformation between national and local height systems.','EPSG','1071','Vertical Offset by Grid Interpolation (NZLVD)','EPSG','7839','EPSG','5769','EPSG','3769',0.02,'EPSG','8732','Vertical offset file','taranaki-1970-to-nzvd2016-conversion.csv',NULL,NULL,NULL,NULL,'EPSG','4167','LINZ-NZ TARA',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7872','NZVD2016 height to Wellington 1953 height (1)','Derived at 137 control points. Mean offset 0.408m, standard deviation 0.054m, maximum difference from mean 0.112m.','Transformation between national and local height systems.','EPSG','1071','Vertical Offset by Grid Interpolation (NZLVD)','EPSG','7839','EPSG','5770','EPSG','3773',0.02,'EPSG','8732','Vertical offset file','wellington-1953-to-nzvd2016-conversion.csv',NULL,NULL,NULL,NULL,'EPSG','4167','LINZ-NZ WGTN',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7891','SHGD2015 to SHVD2015 height (1)','This transformation defines SHVD2015 heights.','Derivation of gravity-related heights from GPS observations.','EPSG','1025','Geographic3D to GravityRelatedHeight (EGM2008)','EPSG','7885','EPSG','7890','EPSG','3183',0.0,'EPSG','8666','Geoid (height correction) model file','Und_min2.5x2.5_egm2008_isw=82_WGS84_TideFree.gz',NULL,NULL,NULL,NULL,NULL,NULL,'ENRD-Shn Hel',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7957','Canada velocity grid v6','NOTE: Before being deprecated this record had a second parameter (code 1048, value 8251) which has been removed due to being non-compliant with the data model.','Change of coordinate epoch for points referenced to NAD83(CSRS)v6.','EPSG','1070','Point motion by grid (Canada NTv2_Vel)','EPSG','8251','EPSG','8251','EPSG','1061',0.01,'EPSG','1050','Point motion velocity grid file','cvg60.cvb',NULL,NULL,NULL,NULL,NULL,NULL,'NRC-Can cvg6.0',1);
INSERT INTO "grid_transformation" VALUES('EPSG','7958','ETRS89 to Belfast height (2)','OSGM15 supersedes OSGM02 geoid model. Replaces ETRS89 to Belfast height (1) (tfm code 5334).','Derivation of gravity-related heights from OSGM15 geoid model.','EPSG','1072','Geographic3D to GravityRelatedHeight (OSGM15-Ire)','EPSG','4937','EPSG','5732','EPSG','2530',0.014,'EPSG','8666','Geoid (height correction) model file','OSGM15_Belfast.gri',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK NI 2015',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7959','ETRS89 to Malin Head height (2)','OSGM15 supersedes OSGM02 geoid model. Replaces ETRS89 to Malin Head height (1) (tfm code 5335).','Derivation of gravity-related heights from OSGM15 geoid model.','EPSG','1072','Geographic3D to GravityRelatedHeight (OSGM15-Ire)','EPSG','4937','EPSG','5731','EPSG','1305',0.023,'EPSG','8666','Geoid (height correction) model file','OSGM15_Malin.gri',NULL,NULL,NULL,NULL,NULL,NULL,'OS-Ire 2015',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7969','NGVD29 height (m) to NAVD88 height (1)','In this area the NGVD29 vertical reference surface is approximately 0.6 to 1.6m below the NAVD88 datum surface. Interpolation within the gridded data file may be made using either NAD27 or any of the realizations of NAD83 applicable to US conus.','Change of height to a different vertical reference surface, accuracy 2cm.','EPSG','9658','VERTCON','EPSG','7968','EPSG','5703','EPSG','2950',0.02,'EPSG','8732','Vertical offset file','vertconw.94',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-US Conus W',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7970','NGVD29 height (m) to NAVD88 height (2)','In the SE of this area the NGVD29 surface is 0 to 0.1m above the NAVD88 surface; in the W it is 0.6 to 0.9m below the NAVD88 surface. Interpolation in the data file may be made using either NAD27 or any of the NAD83 realizations applicable to US conus.','Change of height to a different vertical reference surface, accuracy 2cm.','EPSG','9658','VERTCON','EPSG','7968','EPSG','5703','EPSG','2949',0.02,'EPSG','8732','Vertical offset file','vertconc.94',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-US Conus C',0);
INSERT INTO "grid_transformation" VALUES('EPSG','7971','NGVD29 height (m) to NAVD88 height (3)','In this area the NGVD29 vertical reference surface is approximately 0 to 0.5m above the NAVD88 surface. Interpolation within the gridded data file may be made using either NAD27 or any of the realisations of NAD83 applicable to US conus.','Change of height to a different vertical reference surface, accuracy 2cm.','EPSG','9658','VERTCON','EPSG','7968','EPSG','5703','EPSG','2948',0.02,'EPSG','8732','Vertical offset file','vertcone.94',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-US Conus E',0);
INSERT INTO "grid_transformation" VALUES('EPSG','8037','WGS 84 to MSL height (1)','Parameter values are from WGS 84 to EGM2008 height (2) (tfm code 3859) assuming that the EGM2008 height surface approximates to MSL height within the accuracy of the transformation.','Derivation of gravity-related heights referenced to an unspecified mean sea level from GPS observations.','EPSG','1025','Geographic3D to GravityRelatedHeight (EGM2008)','EPSG','4979','EPSG','5714','EPSG','1262',0.5,'EPSG','8666','Geoid (height correction) model file','Und_min1x1_egm2008_isw=82_WGS84_TideFree.gz',NULL,NULL,NULL,NULL,NULL,NULL,'IOGP-World',0);
INSERT INTO "grid_transformation" VALUES('EPSG','8268','GR96 to GVR2000 height (1)','Defines GVR2000. File is also available in NOAA VDatum format (ggeoid2000.gtx) and GeoTIFF format (ggeoid2000.tif).','Derivation of gravity-related heights from GNSS observations.','EPSG','1047','Geographic3D to GravityRelatedHeight (Gravsoft)','EPSG','4909','EPSG','8266','EPSG','4461',0.1,'EPSG','8666','Geoid (height correction) model file','gr2000g.gri',NULL,NULL,NULL,NULL,NULL,NULL,'SDFE-Grl',0);
INSERT INTO "grid_transformation" VALUES('EPSG','8269','GR96 to GVR2016 height (1)','Defines GVR2016. File is also available in NOAA VDatum format (ggeoid2016.gtx) and GeoTIFF format (ggeoid2016.tif).','Derivation of gravity-related heights from GNSS observations.','EPSG','1047','Geographic3D to GravityRelatedHeight (Gravsoft)','EPSG','4909','EPSG','8267','EPSG','4454',0.1,'EPSG','8666','Geoid (height correction) model file','ggeoid16.gri',NULL,NULL,NULL,NULL,NULL,NULL,'SDFE-Grl',0);
INSERT INTO "grid_transformation" VALUES('EPSG','8271','RGF93 to NGF IGN69 height (2)','Replaces RGF93 to NGF IGN69 height (1) (code 10000). Accuracy at each 0.1 deg x 0.1 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4965','EPSG','5720','EPSG','1326',0.02,'EPSG','8666','Geoid (height correction) model file','RAF09.mnt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Fra 09',1);
INSERT INTO "grid_transformation" VALUES('EPSG','8272','RGF93 to IGN78 Corsica height (1)','Replaces RGF93 to NGF IGN69 height (1) (code 10002). Accuracy at each 0.1 deg x 0.1 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4965','EPSG','5721','EPSG','1327',0.05,'EPSG','8666','Geoid (height correction) model file','RAC09.mnt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Fra Cor 09',1);
INSERT INTO "grid_transformation" VALUES('EPSG','8361','ETRS89 to ETRS89 + Baltic 1957 height (1)','Uses ETRS89 (realization ETRF2000) and quasigeoid model DVRM05. 1 sigma = 34 mm (test performed on 563 independent points). Uses method 9635 rather than method 9665 to facilitate Baltic 1957 to EVRF2007 transformation (see transformation code 8363).','Geodetic survey, GIS','EPSG','9635','Geog3D to Geog2D+GravityRelatedHeight (US .gtx)','EPSG','4937','EPSG','8360','EPSG','1211',0.03,'EPSG','8666','Geoid (height correction) model file','Slovakia_ETRS89h_to_Baltic1957.gtx',NULL,NULL,NULL,NULL,NULL,NULL,'UGKK-Svk',0);
INSERT INTO "grid_transformation" VALUES('EPSG','8362','ETRS89 to ETRS89 + EVRF2007 height (1)','Uses ETRS89 (realization ETRF2000) and quasigeoid model DMQSK2014E. 1 sigma = 29 mm (test performed on 93 independent points). Uses method 9635 rather than method 9665 to facilitate Baltic 1957 to EVRF2007 transformation (see transformation code 8363).','Geodetic survey, GIS','EPSG','9635','Geog3D to Geog2D+GravityRelatedHeight (US .gtx)','EPSG','4937','EPSG','7423','EPSG','1211',0.03,'EPSG','8666','Geoid (height correction) model file','Slovakia_ETRS89h_to_EVRF2007.gtx',NULL,NULL,NULL,NULL,NULL,NULL,'UGKK-Svk',0);
INSERT INTO "grid_transformation" VALUES('EPSG','8364','S-JTSK [JTSK03] to S-JTSK (1)','Derived at 684 identical points.','Applications to 5cm accuracy.','EPSG','9613','NADCON','EPSG','8351','EPSG','4156','EPSG','1211',0.05,'EPSG','8657','Latitude difference file','Slovakia_JTSK03_to_JTSK.LAS','EPSG','8658','Longitude difference file','Slovakia_JTSK03_to_JTSK.LOS',NULL,NULL,'UGKK-Svk',0);
INSERT INTO "grid_transformation" VALUES('EPSG','8369','BD72 to ETRS89 (3)','File name is lower case and despite its name is between geographic CRSs. (Similarly-named file in upper case BD72LB72_ETRS89LB08 operates in projected CRS domain).','For applications to an accuracy of 0.01 metre.','EPSG','9615','NTv2','EPSG','4313','EPSG','4258','EPSG','1347',0.01,'EPSG','8656','Latitude and longitude difference file','bd72lb72_etrs89lb08.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'IGN-Bel 0.01m',0);
INSERT INTO "grid_transformation" VALUES('EPSG','8371','RGF93 to NGF IGN69 height (2)','Replaces RGF93 to NGF IGN69 height (1) (code 10000). Accuracy at each 0.0333333333333° in longitude and 0.025° in latitude grid node is given within the geoid model file. Recommended interpolation method given in file RAF09.xml.','Derivation of gravity-related heights from GPS observations.','EPSG','1073','Geographic3D to GravityRelatedHeight (IGN2009)','EPSG','4965','EPSG','5720','EPSG','1326',0.02,'EPSG','8666','Geoid (height correction) model file','RAF09.mnt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Fra 09',0);
INSERT INTO "grid_transformation" VALUES('EPSG','8372','RGF93 to IGN78 Corsica height (2)','Replaces RGF93 to NGF IGN69 height (1) (code 10002). Accuracy at each 0.0333333333333° in longitude and 0.025° in latitude grid node is given within the geoid model file. Recommended interpolation method given in file RAC09.xml.','Derivation of gravity-related heights from GPS observations.','EPSG','1073','Geographic3D to GravityRelatedHeight (IGN2009)','EPSG','4965','EPSG','5721','EPSG','1327',0.05,'EPSG','8666','Geoid (height correction) model file','RAC09.mnt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Fra Cor 09',0);
INSERT INTO "grid_transformation" VALUES('EPSG','8444','GDA94 to GDA2020 (4)','See GDA94 to GDA2020 (1) (code 8048) for transformation using Helmert method which gives identical results.','Spatial referencing.','EPSG','9615','NTv2','EPSG','4283','EPSG','7844','EPSG','4169',0.05,'EPSG','8656','Latitude and longitude difference file','GDA94_GDA2020_conformal_christmas_island.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'ICSM-Cxr Conf',0);
INSERT INTO "grid_transformation" VALUES('EPSG','8445','GDA94 to GDA2020 (5)','See GDA94 to GDA2020 (1) (code 8048) for transformation using Helmert method which gives identical results.','Spatial referencing.','EPSG','9615','NTv2','EPSG','4283','EPSG','7844','EPSG','1069',0.05,'EPSG','8656','Latitude and longitude difference file','GDA94_GDA2020_conformal_cocos_island.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'ICSM-Cck Conf',0);
INSERT INTO "grid_transformation" VALUES('EPSG','8446','GDA94 to GDA2020 (3)','Gives identical results to Helmert transformation GDA94 to GDA2020 (1) (code 8048). See GDA94 to GDA2020 (2) (code 8447) for alternative with local distortion modelling included. GDA2020 Technical Manual and fact sheet T1 give guidance on which to use.','Conformal transformation of GDA94 coordinates that have been derived through GNSS CORS.','EPSG','9615','NTv2','EPSG','4283','EPSG','7844','EPSG','2575',0.05,'EPSG','8656','Latitude and longitude difference file','GDA94_GDA2020_conformal.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'ICSM-Aus NTv2 Conf',0);
INSERT INTO "grid_transformation" VALUES('EPSG','8447','GDA94 to GDA2020 (2)','See GDA94 to GDA2020 (1) or (3) (codes 8048 and 8446) for alternative conformal-only transformation without local distortion modelling. GDA2020 Technical Manual and fact sheet T1 give guidance on which to use.','Transformation of GDA94 coordinates when localised distortion needs to be taken into account, e.g. if GDA94 coordinates were derived survey control monuments.','EPSG','9615','NTv2','EPSG','4283','EPSG','7844','EPSG','2575',0.05,'EPSG','8656','Latitude and longitude difference file','GDA94_GDA2020_conformal_and_distortion.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'ICSM-Aus Conf and Dist',0);
INSERT INTO "grid_transformation" VALUES('EPSG','8451','GDA2020 to AHD height (1)','Uncertainties given in accompanying file AUSGeoid2020_windows_binary_uncertainty.gsb','Derivation of gravity-related heights from GNSS observations.','EPSG','1048','Geographic3D to GravityRelatedHeight (Ausgeoid v2)','EPSG','7843','EPSG','5711','EPSG','4493',0.03,'EPSG','8666','Geoid (height correction) model file','AUSGeoid2020_windows_binary.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus 2020',0);
INSERT INTO "grid_transformation" VALUES('EPSG','8676','Canada velocity grid v6','','Change of coordinate epoch for points referenced to NAD83(CSRS)v6.','EPSG','1070','Point motion by grid (Canada NTv2_Vel)','EPSG','8251','EPSG','8251','EPSG','1061',0.01,'EPSG','1050','Point motion velocity grid file','cvg60.cvb',NULL,NULL,NULL,NULL,NULL,NULL,'NRC-Can cvg6.0',0);
INSERT INTO "grid_transformation" VALUES('EPSG','8885','RGF93 to NGF IGN69 height (3)','Replaces RGF93 to NGF IGN69 height (2) (code 8371). Accuracy at each 0.0333333333333° in longitude and 0.025° in latitude grid node is given within the geoid model file. Recommended interpolation method is bilinear.','Derivation of gravity-related heights from GPS observations.','EPSG','1073','Geographic3D to GravityRelatedHeight (IGN2009)','EPSG','4965','EPSG','5720','EPSG','1326',0.01,'EPSG','8666','Geoid (height correction) model file','RAF18.tac',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Fra 18',0);
INSERT INTO "grid_transformation" VALUES('EPSG','9131','RGAF09 to IGN 2008 LD height (1)','Replaces RGAF09 to IGN 1992 LD height (1) (CT code 5507). Accuracy 0.1-0.2m within onshore area.','Derivation of gravity-related heights from GPS observations.','EPSG','1073','Geographic3D to GravityRelatedHeight (IGN2009)','EPSG','5488','EPSG','9130','EPSG','2893',0.2,'EPSG','8666','Geoid (height correction) model file','RALD2016.mnt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN-Glp Des',0);
INSERT INTO "grid_transformation" VALUES('EPSG','9132','RRAF 1991 to IGN 2008 LD height (1)','Replaces RRAF 1991 to IGN 1992 LD height (1) (CT code 4566). Accuracy 0.1-0.2m within onshore area.','Derivation of gravity-related heights from GPS observations.','EPSG','1073','Geographic3D to GravityRelatedHeight (IGN2009)','EPSG','4557','EPSG','9130','EPSG','2893',0.2,'EPSG','8666','Geoid (height correction) model file','RALDW842016.mnt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp Des',0);
INSERT INTO "grid_transformation" VALUES('EPSG','9133','RGAF09 to Guadeloupe 1988 height (2)','Replaces RGAF09 to Guadeloupe 1988 height (1) (CT code 5503). Accuracy 0.01-0.05m within onshore areas.','Derivation of gravity-related heights from GPS observations.','EPSG','1073','Geographic3D to GravityRelatedHeight (IGN2009)','EPSG','5488','EPSG','5757','EPSG','2892',0.05,'EPSG','8666','Geoid (height correction) model file','RAGTBT2016.mnt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp GT 2016',0);
INSERT INTO "grid_transformation" VALUES('EPSG','9134','RGAF09 to IGN 1988 LS height (2)','Replaces RGAF09 to IGN 1988 LS height (2) (CT code 5506). Accuracy 0.05-0.1m within onshore area.','Derivation of gravity-related heights from GPS observations.','EPSG','1073','Geographic3D to GravityRelatedHeight (IGN2009)','EPSG','5488','EPSG','5616','EPSG','2895',0.1,'EPSG','8666','Geoid (height correction) model file','RALS2016.mnt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp LSt 2016',0);
INSERT INTO "grid_transformation" VALUES('EPSG','9135','RGAF09 to IGN 1988 MG height (2)','Replaces RGAF09 to IGN 1988 MG height (1), CT code 5504. Accuracy 0.0.5-0.1m within onshore area.','Derivation of gravity-related heights from GPS observations.','EPSG','1073','Geographic3D to GravityRelatedHeight (IGN2009)','EPSG','5488','EPSG','5617','EPSG','2894',0.1,'EPSG','8666','Geoid (height correction) model file','RAMG2016.mnt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp MG 2016',0);
INSERT INTO "grid_transformation" VALUES('EPSG','9136','RGAF09 to Martinique 1987 height (2)','Replaces RGAF09 to Martinique 1987 height (1) (CT code 5502). Accuracy 0.01m to 0.05m within onshore area.','Derivation of gravity-related heights from GPS observations.','EPSG','1073','Geographic3D to GravityRelatedHeight (IGN2009)','EPSG','5488','EPSG','5756','EPSG','3276',0.05,'EPSG','8666','Geoid (height correction) model file','RAMART2016.mnt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Mtq 2016',0);
INSERT INTO "grid_transformation" VALUES('EPSG','9137','RGSPM06 to Danger 1950 height (1)','Accuracy 0.10m to 0.20m within onshore area.','Derivation of gravity-related heights from GPS observations.','EPSG','1073','Geographic3D to GravityRelatedHeight (IGN2009)','EPSG','4466','EPSG','5792','EPSG','1220',0.2,'EPSG','8666','Geoid (height correction) model file','GGSPM06v1.mnt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN-SPM',0);
INSERT INTO "grid_transformation" VALUES('EPSG','9187','RGAF09 to IGN 1988 SB height (2)','Accuracy 0.05m to 0.1m. Replaces RGAF09 to IGN 1988 SB height (1), transformation code 5508.','Derivation of gravity-related heights from GPS observations.','EPSG','1073','Geographic3D to GravityRelatedHeight (IGN2009)','EPSG','5488','EPSG','5619','EPSG','2891',0.1,'EPSG','8666','Geoid (height correction) model file','gg10_sbv2.mnt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp StB',0);
INSERT INTO "grid_transformation" VALUES('EPSG','9188','RGAF09 to IGN 1988 SM height (2)','Accuracy 0.05m to 0.1m. Replaces RGAF09 to IGN 1988 SM height (1), transformation code 5505.','Derivation of gravity-related heights from GPS observations.','EPSG','1073','Geographic3D to GravityRelatedHeight (IGN2009)','EPSG','5488','EPSG','5620','EPSG','2890',0.1,'EPSG','8666','Geoid (height correction) model file','gg10_smv2.mnt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp StM',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10000','RGF93 to NGF IGN69 height (1)','May be used for transformations from WGS 84 to NGF IGN69. Accuracy at each 0.1 deg x 0.1 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4965','EPSG','5720','EPSG','1326',0.5,'EPSG','8666','Geoid (height correction) model file','ggf97a.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Fra',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10001','ETRS89 to NGF IGN69 height (1)','Parameter values taken from RGF93 to NGF IGN69 (1) (code 10000) assuming that RGF93 is equivalent to ETRS89 within the accuracy of the transformation. Accuracy at each 0.1 deg x 0.1 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4937','EPSG','5720','EPSG','1326',0.5,'EPSG','8666','Geoid (height correction) model file','ggf97a.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Fra',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10002','RGF93 to IGN78 Corsica height (1)','May be used for transformations from WGS 84 to IGN78 Corsica. Accuracy at each 0.1 deg x 0.1 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4965','EPSG','5721','EPSG','1327',0.5,'EPSG','8666','Geoid (height correction) model file','ggf97a_corse.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Fra Cor',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10003','ETRS89 to IGN78 Corsica height (1)','Parameter values taken from RGF93 to IGN78 Corsica (1) (code 10002) assuming that RGF93 is equivalent to ETRS89 within the accuracy of the transformation. Accuracy at each 0.1 deg x 0.1 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4937','EPSG','5721','EPSG','1327',0.5,'EPSG','8666','Geoid (height correction) model file','ggf97a_corse.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Fra Cor',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10004','RRAF 1991 to Martinique 1987 height (1)','May be used for transformations from WGS 84 to IGN 1987. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4973','EPSG','5756','EPSG','1156',998.0,'EPSG','8666','Geoid (height correction) model file','ggm00.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Mtq',1);
INSERT INTO "grid_transformation" VALUES('EPSG','10005','RRAF 1991 to Guadeloupe 1988 height (1)','May be used for transformations from WGS 84 to IGN 1988. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations. Accuracy 0.2m within onshore areas.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4973','EPSG','5757','EPSG','2892',0.2,'EPSG','8666','Geoid (height correction) model file','ggg00.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp GT',1);
INSERT INTO "grid_transformation" VALUES('EPSG','10006','RRAF 1991 to Guadeloupe 1988 height (2)','May be used for transformations from WGS 84 to IGN 1988. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4973','EPSG','5757','EPSG','2894',998.0,'EPSG','8666','Geoid (height correction) model file','ggg00_mg.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp MG',1);
INSERT INTO "grid_transformation" VALUES('EPSG','10007','RRAF 1991 to Guadeloupe 1988 height (3)','May be used for transformations from WGS 84 to IGN 1988. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4973','EPSG','5757','EPSG','2895',998.0,'EPSG','8666','Geoid (height correction) model file','ggg00_ls.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp LSt',1);
INSERT INTO "grid_transformation" VALUES('EPSG','10008','RRAF 1991 to Guadeloupe 1988 height (4)','May be used for transformations from WGS 84 to IGN 1988. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4973','EPSG','5757','EPSG','2893',998.0,'EPSG','8666','Geoid (height correction) model file','ggg00_ld.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp Des',1);
INSERT INTO "grid_transformation" VALUES('EPSG','10009','RRAF 1991 to Guadeloupe 1988 height (5)','May be used for transformations from WGS 84 to IGN 1988. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4973','EPSG','5757','EPSG','2891',998.0,'EPSG','8666','Geoid (height correction) model file','ggg00_sb.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp StB',1);
INSERT INTO "grid_transformation" VALUES('EPSG','10010','RRAF 1991 to Guadeloupe 1988 height (6)','May be used for transformations from WGS 84 to IGN 1988. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4973','EPSG','5757','EPSG','2890',998.0,'EPSG','8666','Geoid (height correction) model file','ggg00_sm.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp StM',1);
INSERT INTO "grid_transformation" VALUES('EPSG','10011','RGFG95 to NGG1977 height (1)','May be used for transformations from WGS 84 to NGG1977. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4967','EPSG','5755','EPSG','3146',998.0,'EPSG','8666','Geoid (height correction) model file','ggguy00.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Guf',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10012','RGR92 to Reunion 1989 height (1)','May be used for transformations from WGS 84 to IGN 1989. Accuracy at each 0.02 deg x 0.02 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4971','EPSG','5758','EPSG','3337',0.1,'EPSG','8666','Geoid (height correction) model file','ggr99.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Reu',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10013','NAD83 to NAVD88 height (1)','Uses Geoid03 hybrid model. See information source for further information. Note: Source CRS is 2D, used in this application of the method as a pseudo-3D CRS.','Derivation of approximate gravity-related heights from GPS observations.','EPSG','9665','Geographic3D to GravityRelatedHeight (US .gtx)','EPSG','4269','EPSG','5703','EPSG','2977',0.05,'EPSG','8666','Geoid (height correction) model file','g2003u01.bin',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-US Conus NW',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10014','NAD83 to NAVD88 height (2)','Uses Geoid03 hybrid model. See information source for further information. Note: Source CRS is 2D, used in this application of the method as a pseudo-3D CRS.','Derivation of approximate gravity-related heights from GPS observations.','EPSG','9665','Geographic3D to GravityRelatedHeight (US .gtx)','EPSG','4269','EPSG','5703','EPSG','2978',0.05,'EPSG','8666','Geoid (height correction) model file','g2003u02.bin',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-US Conus CNW',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10015','NAD83 to NAVD88 height (3)','Uses Geoid03 hybrid model. See information source for further information. Note: Source CRS is 2D, used in this application of the method as a pseudo-3D CRS.','Derivation of approximate gravity-related heights from GPS observations.','EPSG','9665','Geographic3D to GravityRelatedHeight (US .gtx)','EPSG','4269','EPSG','5703','EPSG','2979',0.05,'EPSG','8666','Geoid (height correction) model file','g2003u03.bin',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-US Conus CNE',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10016','NAD83 to NAVD88 height (4)','Uses Geoid03 hybrid model. See information source for further information. Note: Source CRS is 2D, used in this application of the method as a pseudo-3D CRS.','Derivation of approximate gravity-related heights from GPS observations.','EPSG','9665','Geographic3D to GravityRelatedHeight (US .gtx)','EPSG','4269','EPSG','5703','EPSG','2980',0.05,'EPSG','8666','Geoid (height correction) model file','g2003u04.bin',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-US Conus NE',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10017','NAD83 to NAVD88 height (5)','Uses Geoid03 hybrid model. See information source for further information. Note: Source CRS is 2D, used in this application of the method as a pseudo-3D CRS.','Derivation of approximate gravity-related heights from GPS observations.','EPSG','9665','Geographic3D to GravityRelatedHeight (US .gtx)','EPSG','4269','EPSG','5703','EPSG','2973',0.05,'EPSG','8666','Geoid (height correction) model file','g2003u05.bin',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-US Conus SW',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10018','NAD83 to NAVD88 height (6)','Uses Geoid03 hybrid model. See information source for further information. Note: Source CRS is 2D, used in this application of the method as a pseudo-3D CRS.','Derivation of approximate gravity-related heights from GPS observations.','EPSG','9665','Geographic3D to GravityRelatedHeight (US .gtx)','EPSG','4269','EPSG','5703','EPSG','2974',0.05,'EPSG','8666','Geoid (height correction) model file','g2003u06.bin',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-US Conus CSW',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10019','NAD83 to NAVD88 height (7)','Uses Geoid03 hybrid model. See information source for further information. Note: Source CRS is 2D, used in this application of the method as a pseudo-3D CRS.','Derivation of approximate gravity-related heights from GPS observations.','EPSG','9665','Geographic3D to GravityRelatedHeight (US .gtx)','EPSG','4269','EPSG','5703','EPSG','2975',0.05,'EPSG','8666','Geoid (height correction) model file','g2003u07.bin',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-US Conus CSE',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10020','NAD83 to NAVD88 height (8)','Uses Geoid03 hybrid model. See information source for further information. Note: Source CRS is 2D, used in this application of the method as a pseudo-3D CRS.','Derivation of approximate gravity-related heights from GPS observations.','EPSG','9665','Geographic3D to GravityRelatedHeight (US .gtx)','EPSG','4269','EPSG','5703','EPSG','2976',0.05,'EPSG','8666','Geoid (height correction) model file','g2003u08.bin',NULL,NULL,NULL,NULL,NULL,NULL,'NGS-US Conus SE',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10021','ETRS89 to Newlyn height (1)','May be used for transformations from WGS 84 to Newlyn.','Derivation of gravity-related heights from GPS observations.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5701','EPSG','2792',0.02,'EPSG','8666','Geoid (height correction) model file','OSTN02_OSGM02_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Gbr',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10022','ETRS89 to Belfast height (1)','May be used for transformations from WGS 84 to Belfast.','Derivation of gravity-related heights from GPS observations.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5732','EPSG','2530',0.03,'EPSG','8666','Geoid (height correction) model file','OSTN02_OSGM02_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK NI',1);
INSERT INTO "grid_transformation" VALUES('EPSG','10023','ETRS89 to Douglas height (1)','May be used for transformations from WGS 84 to Douglas.','Derivation of gravity-related heights from GPS observations.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5750','EPSG','2803',0.02,'EPSG','8666','Geoid (height correction) model file','OSTN02_OSGM02_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Man',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10024','ETRS89 to Fair Isle height (1)','May be used for transformations from WGS 84 to Fair Isle.','Derivation of gravity-related heights from GPS observations.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5741','EPSG','2794',0.05,'EPSG','8666','Geoid (height correction) model file','OSTN02_OSGM02_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Fair',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10025','ETRS89 to Flannan Isles height (1)','May be used for transformations from WGS 84 to Flannan Isles.','Derivation of gravity-related heights from GPS observations.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5748','EPSG','2801',0.05,'EPSG','8666','Geoid (height correction) model file','OSTN02_OSGM02_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Flan',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10026','ETRS89 to Foula height (1)','May be used for transformations from WGS 84 to Foula.','Derivation of gravity-related heights from GPS observations.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5743','EPSG','2796',0.05,'EPSG','8666','Geoid (height correction) model file','OSTN02_OSGM02_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Foula',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10027','ETRS89 to Lerwick height (1)','May be used for transformations from WGS 84 to Lerwick.','Derivation of gravity-related heights from GPS observations.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5742','EPSG','2795',0.05,'EPSG','8666','Geoid (height correction) model file','OSTN02_OSGM02_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Shet',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10028','ETRS89 to Malin Head height (1)','May be used for transformations from WGS 84 to Malin Head.','Derivation of gravity-related heights from GPS observations.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5731','EPSG','1305',0.04,'EPSG','8666','Geoid (height correction) model file','OSTN02_OSGM02_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-Ire',1);
INSERT INTO "grid_transformation" VALUES('EPSG','10029','ETRS89 to Newlyn (Orkney Isles) height (1)','May be used for transformations from WGS 84 to Newlyn (Orkney Isles).','Derivation of gravity-related heights from GPS observations.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5740','EPSG','2793',0.05,'EPSG','8666','Geoid (height correction) model file','OSTN02_OSGM02_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Ork',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10030','ETRS89 to North Rona height (1)','May be used for transformations from WGS 84 to North Rona.','Derivation of gravity-related heights from GPS observations.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5745','EPSG','2798',0.05,'EPSG','8666','Geoid (height correction) model file','OSTN02_OSGM02_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Rona',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10031','ETRS89 to St. Kilda height (1)','May be used for transformations from WGS 84 to St. Kilda.','Derivation of gravity-related heights from GPS observations.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5747','EPSG','2800',0.05,'EPSG','8666','Geoid (height correction) model file','OSTN02_OSGM02_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Kilda',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10032','ETRS89 to St. Marys height (1)','May be used for transformations from WGS 84 to St. Marys.','Derivation of gravity-related heights from GPS observations.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5749','EPSG','2802',0.0,'EPSG','8666','Geoid (height correction) model file','OSTN02_OSGM02_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Scilly',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10033','ETRS89 to Stornoway height (1)','May be used for transformations from WGS 84 to Stornoway.','Derivation of gravity-related heights from GPS observations.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5746','EPSG','2799',0.05,'EPSG','8666','Geoid (height correction) model file','OSTN02_OSGM02_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Heb',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10034','ETRS89 to Sule Skerry height (1)','May be used for transformations from WGS 84 to Sule Skerry.','Derivation of gravity-related heights from GPS observations.','EPSG','9663','Geographic3D to GravityRelatedHeight (OSGM-GB)','EPSG','4937','EPSG','5744','EPSG','2797',0.05,'EPSG','8666','Geoid (height correction) model file','OSTN02_OSGM02_GB.txt',NULL,NULL,NULL,NULL,NULL,NULL,'OS-UK Sule',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10035','GDA94 to AHD height (1)','May be used for transformations from WGS 84 to AHD.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2899',0.4,'EPSG','8666','Geoid (height correction) model file','SC52_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SC52',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10036','GDA94 to AHD height (2)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2900',0.4,'EPSG','8666','Geoid (height correction) model file','SC53_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SC53',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10037','GDA94 to AHD height (3)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2901',0.4,'EPSG','8666','Geoid (height correction) model file','SC54_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SC54',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10038','GDA94 to AHD height (4)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2902',0.4,'EPSG','8666','Geoid (height correction) model file','SD51_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SD51',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10039','GDA94 to AHD height (5)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2903',0.4,'EPSG','8666','Geoid (height correction) model file','SD52_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SD52',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10040','GDA94 to AHD height (6)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2904',0.4,'EPSG','8666','Geoid (height correction) model file','SD53_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SD53',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10041','GDA94 to AHD height (7)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2905',0.4,'EPSG','8666','Geoid (height correction) model file','SD54_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SD54',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10042','GDA94 to AHD height (8)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2906',0.4,'EPSG','8666','Geoid (height correction) model file','SD55_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SD55',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10043','GDA94 to AHD height (9)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2907',0.4,'EPSG','8666','Geoid (height correction) model file','SE50_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SE50',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10044','GDA94 to AHD height (10)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2908',0.4,'EPSG','8666','Geoid (height correction) model file','SE51_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SE51',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10045','GDA94 to AHD height (11)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2909',0.4,'EPSG','8666','Geoid (height correction) model file','SE52_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SE52',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10046','GDA94 to AHD height (12)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2910',0.4,'EPSG','8666','Geoid (height correction) model file','SE53_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SE53',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10047','GDA94 to AHD height (13)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2911',0.4,'EPSG','8666','Geoid (height correction) model file','SE54_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SE54',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10048','GDA94 to AHD height (14)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2912',0.4,'EPSG','8666','Geoid (height correction) model file','SE55_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SE55',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10049','GDA94 to AHD height (15)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2913',0.4,'EPSG','8666','Geoid (height correction) model file','SF49_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SF49',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10050','GDA94 to AHD height (16)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2914',0.4,'EPSG','8666','Geoid (height correction) model file','SF50_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SF50',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10051','GDA94 to AHD height (17)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2915',0.4,'EPSG','8666','Geoid (height correction) model file','SF51_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SF51',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10052','GDA94 to AHD height (18)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2916',0.4,'EPSG','8666','Geoid (height correction) model file','SF52_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SF52',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10053','GDA94 to AHD height (19)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2917',0.4,'EPSG','8666','Geoid (height correction) model file','SF53_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SF53',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10054','GDA94 to AHD height (20)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2918',0.4,'EPSG','8666','Geoid (height correction) model file','SF54_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SF54',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10055','GDA94 to AHD height (21)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2919',0.4,'EPSG','8666','Geoid (height correction) model file','SF55_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SF55',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10056','GDA94 to AHD height (22)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2920',0.4,'EPSG','8666','Geoid (height correction) model file','SF56_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SF56',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10057','GDA94 to AHD height (23)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2921',0.4,'EPSG','8666','Geoid (height correction) model file','SG49_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SG49',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10058','GDA94 to AHD height (24)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2922',0.4,'EPSG','8666','Geoid (height correction) model file','SG50_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SG50',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10059','GDA94 to AHD height (25)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2923',0.4,'EPSG','8666','Geoid (height correction) model file','SG51_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SG51',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10060','GDA94 to AHD height (26)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2924',0.4,'EPSG','8666','Geoid (height correction) model file','SG52_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SG52',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10061','GDA94 to AHD height (27)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2925',0.4,'EPSG','8666','Geoid (height correction) model file','SG53_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SG53',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10062','GDA94 to AHD height (28)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2926',0.4,'EPSG','8666','Geoid (height correction) model file','SG54_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SG54',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10063','GDA94 to AHD height (29)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2927',0.4,'EPSG','8666','Geoid (height correction) model file','SG55_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SG55',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10064','GDA94 to AHD height (30)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2928',0.4,'EPSG','8666','Geoid (height correction) model file','SG56_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SG56',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10065','GDA94 to AHD height (31)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2929',0.4,'EPSG','8666','Geoid (height correction) model file','SH49_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SH49',1);
INSERT INTO "grid_transformation" VALUES('EPSG','10066','GDA94 to AHD height (32)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2930',0.4,'EPSG','8666','Geoid (height correction) model file','SH50_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SH50',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10067','GDA94 to AHD height (33)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2931',0.4,'EPSG','8666','Geoid (height correction) model file','SH51_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SH51',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10068','GDA94 to AHD height (34)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2932',0.4,'EPSG','8666','Geoid (height correction) model file','SH52_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SH52',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10069','GDA94 to AHD height (35)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2933',0.4,'EPSG','8666','Geoid (height correction) model file','SH53_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SH53',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10070','GDA94 to AHD height (36)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2934',0.4,'EPSG','8666','Geoid (height correction) model file','SH54_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SH54',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10071','GDA94 to AHD height (37)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2935',0.4,'EPSG','8666','Geoid (height correction) model file','SH55_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SH55',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10072','GDA94 to AHD height (38)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2936',0.4,'EPSG','8666','Geoid (height correction) model file','SH56_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SH56',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10073','GDA94 to AHD height (39)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2937',0.4,'EPSG','8666','Geoid (height correction) model file','SI50_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SI50',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10074','GDA94 to AHD height (40)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2938',0.4,'EPSG','8666','Geoid (height correction) model file','SI51_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SI51',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10075','GDA94 to AHD height (41)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2939',0.4,'EPSG','8666','Geoid (height correction) model file','SI53_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SI53',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10076','GDA94 to AHD height (42)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2940',0.4,'EPSG','8666','Geoid (height correction) model file','SI54_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SI54',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10077','GDA94 to AHD height (43)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2941',0.4,'EPSG','8666','Geoid (height correction) model file','SI55_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SI55',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10078','GDA94 to AHD height (44)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2942',0.4,'EPSG','8666','Geoid (height correction) model file','SI56_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SI56',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10079','GDA94 to AHD height (45)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2943',0.4,'EPSG','8666','Geoid (height correction) model file','SJ53_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SJ53',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10080','GDA94 to AHD height (46)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2944',0.4,'EPSG','8666','Geoid (height correction) model file','SJ54_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SJ54',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10081','GDA94 to AHD height (47)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2945',0.4,'EPSG','8666','Geoid (height correction) model file','SJ55_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SJ55',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10082','GDA94 to AHD height (48)','May be used for transformations from WGS 84 to AHD. Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5711','EPSG','2946',0.4,'EPSG','8666','Geoid (height correction) model file','SJ56_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SJ56',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10083','GDA94 to AHD (Tasmania) height (1)','May be used for transformations from WGS 84 to AHD (Tasmania). Uses AusGeoid98 model.','Derivation of gravity-related heights from GPS observations.','EPSG','9662','Geographic3D to GravityRelatedHeight (Ausgeoid98)','EPSG','4939','EPSG','5712','EPSG','2947',0.4,'EPSG','8666','Geoid (height correction) model file','SK55_DAT.htm',NULL,NULL,NULL,NULL,NULL,NULL,'GA-Aus SK55',0);
INSERT INTO "grid_transformation" VALUES('EPSG','10084','WGS 84 to EGM96 height (1)','Replaces WGS 84 to EGM84 height (1) (tfm code 15781). Replaced by WGS 84 to EGM2008 height (1) and (2) (tfm codes 3858-59). An executable using spherical harmonics is also available.','Derivation of gravity-related heights from GPS observations.','EPSG','9661','Geographic3D to GravityRelatedHeight (EGM)','EPSG','4979','EPSG','5773','EPSG','1262',1.0,'EPSG','8666','Geoid (height correction) model file','WW15MGH.GRD',NULL,NULL,NULL,NULL,NULL,NULL,'NGA-World',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15486','CH1903 to CH1903+ (1)','For improved accuracy (0.01m) use CHENyx06 interpolation programme FINELTRA. File CHENyx06 replaced by CHENyx06a; there is a small area at the border of the data where some more real data has been introduced. swisstopo consider the change insignificant.','Approximation using NTv2 method of results of FINELTRA programme to an accuracy of 0.01m except at boundary of the Geneva and Vaud cantons, in city of Geneva and in the main valleys of Valais canton where differences are up to 20 cm.','EPSG','9615','NTv2','EPSG','4149','EPSG','4150','EPSG','1286',0.2,'EPSG','8656','Latitude and longitude difference file','CHENyx06a.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'BfL-Che',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15488','RRAF 1991 to IGN 1988 MG height (1)','May be used for transformations from WGS 84 to IGN 1988 MG. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations. Accuracy 0.2m within onshore area.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4973','EPSG','5617','EPSG','2894',0.2,'EPSG','8666','Geoid (height correction) model file','ggg00_mg.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp MG',1);
INSERT INTO "grid_transformation" VALUES('EPSG','15489','RRAF 1991 to IGN 1988 LS height (1)','May be used for transformations from WGS 84 to IGN 1988 LS. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations. Accuracy 0.2m within onshore area.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4973','EPSG','5616','EPSG','2895',0.2,'EPSG','8666','Geoid (height correction) model file','ggg00_ls.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp LSt',1);
INSERT INTO "grid_transformation" VALUES('EPSG','15490','RRAF 1991 to IGN 1992 LD height (1)','May be used for transformations from WGS 84 to IGN 1992 LD. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations. Accuracy 0.5m within onshore area.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4973','EPSG','5618','EPSG','2893',0.5,'EPSG','8666','Geoid (height correction) model file','ggg00_ld.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp Des',1);
INSERT INTO "grid_transformation" VALUES('EPSG','15491','RRAF 1991 to IGN 1988 SB height (1)','May be used for transformations from WGS 84 to IGN 1988 SB. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations. Accuracy 0.2m within onshore area.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4973','EPSG','5619','EPSG','2891',0.2,'EPSG','8666','Geoid (height correction) model file','ggg00_sb.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp StB',1);
INSERT INTO "grid_transformation" VALUES('EPSG','15492','RRAF 1991 to IGN 1988 SM height (1)','May be used for transformations from WGS 84 to IGN 1988 SM. Accuracy at each 0.025 deg x 0.025 degree grid node is given within the geoid model file.','Derivation of gravity-related heights from GPS observations. Accuracy 0.2m within onshore area.','EPSG','9664','Geographic3D to GravityRelatedHeight (IGN1997)','EPSG','4973','EPSG','5620','EPSG','2890',0.2,'EPSG','8666','Geoid (height correction) model file','ggg00_sm.txt',NULL,NULL,NULL,NULL,NULL,NULL,'IGN Glp StM',1);
INSERT INTO "grid_transformation" VALUES('EPSG','15781','WGS 84 to EGM84 height (1)','File may also be found named as "EGM84.GRD". An executable using spherical harmonics is also available. Replaced by WGS 84 to EGM96 height (1) (CT code 10084).','Derivation of gravity-related heights from GPS observations.','EPSG','9661','Geographic3D to GravityRelatedHeight (EGM)','EPSG','4979','EPSG','5798','EPSG','1262',1.0,'EPSG','8666','Geoid (height correction) model file','DIRACC.DAT',NULL,NULL,NULL,NULL,NULL,NULL,'NGA-World',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15785','AGD84 to WGS 84 (9)','Transformation taken from AGD84 to GDA94 (5) (code 1804) assuming that GDA94 is equivalent to WGS 84 within the accuracy of this tfm. Uses NTv2 method which expects longitudes positive west; EPSG CRS codes 4203 and 4326 have longitudes positive east.','1m accuracy.','EPSG','9615','NTv2','EPSG','4203','EPSG','4326','EPSG','2576',1.0,'EPSG','8656','Latitude and longitude difference file','National 84 (02.07.01).gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-Aus 1m',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15786','AGD66 to WGS 84 (17)','Transformation taken from AGD66 to GDA94 (11) (code 1803) assuming that GDA94 is equivalent to WGS 84 within the accuracy of this tfm. Uses NTv2 method which expects longitudes positive west; EPSG CRS codes 4202 and 4326 have longitudes positive east.','1m accuracy.','EPSG','9615','NTv2','EPSG','4202','EPSG','4326','EPSG','2575',1.0,'EPSG','8656','Latitude and longitude difference file','A66 National (13.09.01).gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-Aus 0.1m',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15834','NAD83 to NAD83(HARN) (44)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 15835.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1402',0.05,'EPSG','8657','Latitude difference file','nchpgn.las','EPSG','8658','Longitude difference file','nchpgn.los',NULL,NULL,'NGS-Usa NC',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15835','NAD83 to WGS 84 (55)','Parameter files are from NAD83 to NAD83(HARN) (44) (code 15834) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1402',1.0,'EPSG','8657','Latitude difference file','nchpgn.las','EPSG','8658','Longitude difference file','nchpgn.los',NULL,NULL,'OGP-Usa NC',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15836','NAD83 to NAD83(HARN) (45)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 15837.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1409',0.05,'EPSG','8657','Latitude difference file','schpgn.las','EPSG','8658','Longitude difference file','schpgn.los',NULL,NULL,'NGS-Usa SC',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15837','NAD83 to WGS 84 (56)','Parameter files are from NAD83 to NAD83(HARN) (45) (code 15836) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1409',1.0,'EPSG','8657','Latitude difference file','schpgn.las','EPSG','8658','Longitude difference file','schpgn.los',NULL,NULL,'OGP-Usa SC',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15838','NAD83 to NAD83(HARN) (46)','Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east.  May be taken as approximate transformation NAD83-WGS 84 - see code 15839.','Geodetic survey. Accuracy 0.05m at 67% confidence level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4152','EPSG','1407',0.05,'EPSG','8657','Latitude difference file','pahpgn.las','EPSG','8658','Longitude difference file','pahpgn.los',NULL,NULL,'NGS-Usa PA',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15839','NAD83 to WGS 84 (57)','Parameter files are from NAD83 to NAD83(HARN) (46) (code 15838) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.','Approximation at the +/- 1m level.','EPSG','9613','NADCON','EPSG','4269','EPSG','4326','EPSG','1407',1.0,'EPSG','8657','Latitude difference file','pahpgn.las','EPSG','8658','Longitude difference file','pahpgn.los',NULL,NULL,'OGP-Usa PA',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15840','Old Hawaiian to WGS 84 (8)','Transformation steps are from Old Hawaiian to NAD83 (1) (code 1454) assuming that NAD83 is equivalent to WGS 84 within the accuracy of the transformation.','Accuracy of transformation consistent with equivalence of WGS 84 and NAD 84 for Hawaii Islands. +/- 1 to 2 meters.','EPSG','9613','NADCON','EPSG','4135','EPSG','4326','EPSG','1334',2.0,'EPSG','8657','Latitude difference file','hawaii.las','EPSG','8658','Longitude difference file','hawaii.los',NULL,NULL,'OGP-Usa HI 2m',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15841','Puerto Rico to WGS 84 (4)','Transformation steps are from Puerto Rico to NAD83 (1) (code 1461) assuming that NAD83 is equivalent to WGS 84 within the accuracy of the transformation.','Accuracy of transformation consistent with equivalence of WGS 84 and NAD 83 for Puerto Rico. +/- 1 to 2 meters.','EPSG','9613','NADCON','EPSG','4139','EPSG','4326','EPSG','3294',2.0,'EPSG','8657','Latitude difference file','prvi.las','EPSG','8658','Longitude difference file','prvi.los',NULL,NULL,'OGP-Pri 2m',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15851','NAD27 to WGS 84 (79)','Transformation taken from NAD27 to NAD83 (1) (code 1241) assuming that NAD83 is equivalent to WGS 84 within the accuracy of this tfm. Uses NADCON method which expects longitudes positive west; EPSG CRS codes 4267 and 4326 have longitudes positive east.','Recommended for oil industry use in US Gulf of Mexico (GoM). Accuracy at 67% confidence level is 0.15m onshore, 5m nearshore and undetermined farther offshore.','EPSG','9613','NADCON','EPSG','4267','EPSG','4326','EPSG','2374',5.0,'EPSG','8657','Latitude difference file','conus.las','EPSG','8658','Longitude difference file','conus.los',NULL,NULL,'OGP-Usa Conus',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15864','NAD27 to WGS 84 (85)','Transformation taken from NAD27 to NAD83 (2) (code 1243) assuming that NAD83 is equivalent to WGS 84 within the accuracy of this tfm. Uses NADCON method which expects longitudes positive west; EPSG CRS codes 4267 and 4326 have longitudes positive east.','Accuracy at 67% confidence level is 0.15m onshore, 5m nearshore and undetermined farther offshore.','EPSG','9613','NADCON','EPSG','4267','EPSG','4326','EPSG','2373',5.0,'EPSG','8657','Latitude difference file','alaska.las','EPSG','8658','Longitude difference file','alaska.los',NULL,NULL,'OGP-Usa AK',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15895','ED50 to ETRS89 (11)','May be taken as approximate transformation ED50 to WGS 84 - see code 15907. NOTE: Parameter file is non-conformant with NTv2 specification - replaced by ED50 to ETRS89 (12) (code 15932).','For applications to an accuracy of 10-15cm (95% confidence) for Spain mainland and about 4cm (95%) for Balearic Islands.','EPSG','9615','NTv2','EPSG','4230','EPSG','4258','EPSG','3429',0.2,'EPSG','8656','Latitude and longitude difference file','sped2et.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'IGN-Esp',1);
INSERT INTO "grid_transformation" VALUES('EPSG','15907','ED50 to WGS 84 (40)','Parameter values from ED50 to ETRS89 (11) (code 15895). Assumes ETRS89 and WGS 84 can be considered the same to within the accuracy of the transformation. NOTE: Parameter file is non-conformant with NTv2 specification - replaced by ED50 to WGS 84 (41).','For applications to an accuracy of 1 metre.','EPSG','9615','NTv2','EPSG','4230','EPSG','4326','EPSG','3429',1.0,'EPSG','8656','Latitude and longitude difference file','sped2et.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-Esp',1);
INSERT INTO "grid_transformation" VALUES('EPSG','15932','ED50 to ETRS89 (12)','Replaces ED50 to ETRS89 (11) (code 15895) - see supersession record. May be taken as approximate transformation ED50 to WGS 84 - see code 15933.','For applications to an accuracy of 10-15cm (95% confidence) for Spain mainland and about 4cm (95%) for Balearic Islands.','EPSG','9615','NTv2','EPSG','4230','EPSG','4258','EPSG','3429',0.2,'EPSG','8656','Latitude and longitude difference file','SPED2ETV2.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'IGN-Esp v2',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15933','ED50 to WGS 84 (41)','Parameter values from ED50 to ETRS89 (12) (code 15932). Assumes ETRS89 and WGS 84 can be considered the same to within the accuracy of the transformation. Replaces ED50 to WGS 84 (40) - see supersession record.','For applications to an accuracy of 1 metre.','EPSG','9615','NTv2','EPSG','4230','EPSG','4326','EPSG','3429',1.0,'EPSG','8656','Latitude and longitude difference file','SPED2ETV2.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-Esp v2',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15940','NTF to RGF93 (2)','Emulation using NTv2 method of France Geocentric Interpolation method tfm NTF to RGF93 (1), code 1053. May be taken as approximate transformation to ETRS89 or WGS 84 - see tfm codes 15941 and 15942.','For applications requiring an accuracy of better than 1 metre.','EPSG','9615','NTv2','EPSG','4275','EPSG','4171','EPSG','1326',1.0,'EPSG','8656','Latitude and longitude difference file','rgf93_ntf.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'ESRI-Fra 1m emulation',1);
INSERT INTO "grid_transformation" VALUES('EPSG','15941','NTF to ETRS89 (3)','These parameter values are taken from NTF to RGR93 (2) (code 15940) as RGR93 may be considered equivalent to ETRS89 within the accuracy of the transformation. Emulation of France Geocentric Interpolation method tfm code 1054.','For applications requiring an accuracy of better than 1 metre.','EPSG','9615','NTv2','EPSG','4275','EPSG','4258','EPSG','1326',1.0,'EPSG','8656','Latitude and longitude difference file','rgf93_ntf.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'EPSG-Fra 1m emulation',1);
INSERT INTO "grid_transformation" VALUES('EPSG','15942','NTF to WGS 84 (3)','These parameter values are taken from NTF to RGR93 (2) (code 15940) as RGR93 may be considered equivalent to WGS 84 within the accuracy of the transformation. Emulation of France Geocentric Interpolation method tfm code 15939.','For applications requiring an accuracy of better than 1 metre.','EPSG','9615','NTv2','EPSG','4275','EPSG','4326','EPSG','1326',1.0,'EPSG','8656','Latitude and longitude difference file','rgf93_ntf.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'EPSG-Fra 1m emulation',1);
INSERT INTO "grid_transformation" VALUES('EPSG','15944','NEA74 Noumea to RGNC91-93 (4)','Emulation using NTv2 method of tfm NEA74 Noumea to RGNC91-93 (3) (code 15943).','Accuracy 5-10cm.','EPSG','9615','NTv2','EPSG','4644','EPSG','4749','EPSG','2823',0.05,'EPSG','8656','Latitude and longitude difference file','RGNC1991_NEA74Noumea.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'ESRI-Ncl 0.05m',1);
INSERT INTO "grid_transformation" VALUES('EPSG','15947','IGN72 Grande Terre to RGNC91-93 (6)','Emulation using NTv2 method of tfm IGN72 Grande Terre to RGNC91-93 (4) (code 15945).','Accuracy better than +/- 0.1 metre.','EPSG','9615','NTv2','EPSG','4662','EPSG','4749','EPSG','2822',0.1,'EPSG','8656','Latitude and longitude difference file','RGNC1991_IGN72GrandeTerre.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'ESRI-Ncl 0.1m',1);
INSERT INTO "grid_transformation" VALUES('EPSG','15948','DHDN to ETRS89 (8)','Developed for ATKIS (Amtliches Topographisch-Kartographisches Informationssystem [Official Topographic and Cartographic Information System]). Provides a uniform transformation across the whole country. May be used as tfm to WGS84 - see tfm code 15949.','For applications requiring an accuracy of better than 1 metre.','EPSG','9615','NTv2','EPSG','4314','EPSG','4258','EPSG','3339',1.0,'EPSG','8656','Latitude and longitude difference file','BETA2007.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'BKG-Deu BeTA2007',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15949','DHDN to WGS 84 (4)','These parameter values are taken from DHDN to ETRS89 (8) (code 15948) as ETRS89 may be considered equivalent to WGS 84 within the accuracy of the transformation.','For applications requiring an accuracy of better than 1 metre.','EPSG','9615','NTv2','EPSG','4314','EPSG','4326','EPSG','3339',1.0,'EPSG','8656','Latitude and longitude difference file','BETA2007.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-Deu BeTA2007',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15954','RD/83 to WGS 84 (1)','These parameter values are taken from DHDN to ETRS89 (8) (code 15948) as RD/83 and ETRS89 may be considered equivalent to DHDN and WGS 84 respectively within the accuracy of the transformation.','For applications requiring an accuracy of better than 1 metre.','EPSG','9615','NTv2','EPSG','4745','EPSG','4326','EPSG','2545',1.0,'EPSG','8656','Latitude and longitude difference file','BETA2007.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-Deu BeTA2007',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15955','PD/83 to WGS 84 (1)','These parameter values are taken from DHDN to ETRS89 (8) (code 15948) as PD/83 and ETRS89 may be considered equivalent to DHDN and WGS 84 respectively within the accuracy of the transformation.','For applications requiring an accuracy of better than 1 metre.','EPSG','9615','NTv2','EPSG','4746','EPSG','4326','EPSG','2544',1.0,'EPSG','8656','Latitude and longitude difference file','BETA2007.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'OGP-Deu BeTA2007',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15958','RGF93 to NTF (2)','Emulation using NTv2 method of France Geocentric Interpolation method tfm NTF to RGF93 (1), code 1053. Note that grid file parameters are of opposite sign. May be taken as approximate transformation to ETRS89 or WGS 84 - see tfm codes 15959 and 15960.','For applications requiring an accuracy of better than 1 metre.','EPSG','9615','NTv2','EPSG','4171','EPSG','4275','EPSG','3694',1.0,'EPSG','8656','Latitude and longitude difference file','rgf93_ntf.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'ESRI-Fra 1m emulation',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15959','ETRS89 to NTF (3)','These parameter values are taken from RGF93 to NTF (2) (code 15958) as RGF93 may be considered equivalent to ETRS89 within the accuracy of the transformation. Emulation of France Geocentric Interpolation method tfm code 1054: note reversal of sign.','For applications requiring an accuracy of better than 1 metre.','EPSG','9615','NTv2','EPSG','4258','EPSG','4275','EPSG','3694',1.0,'EPSG','8656','Latitude and longitude difference file','rgf93_ntf.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'EPSG-Fra 1m emulation',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15960','WGS 84 to NTF (3)','These parameter values are taken from RGF93 to NTF (2) (code 15958) as RGF93 may be considered equivalent to WGS 84 within the accuracy of the transformation. Emulation of France Geocentric Interpolation method tfm code 15939: note reversal of sign.','For applications requiring an accuracy of better than 1 metre.','EPSG','9615','NTv2','EPSG','4326','EPSG','4275','EPSG','3694',1.0,'EPSG','8656','Latitude and longitude difference file','rgf93_ntf.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'EPSG-Fra 1m emulation',0);
INSERT INTO "grid_transformation" VALUES('EPSG','15961','RGNC91-93 to NEA74 Noumea (4)','Emulation using NTv2 method of tfm NEA74 Noumea to RGNC91-93 (3) (code 15943). Note reversal of sign of parameter values in grid file.','Accuracy 5-10cm.','EPSG','9615','NTv2','EPSG','4749','EPSG','4644','EPSG','2823',0.05,'EPSG','8656','Latitude and longitude difference file','RGNC1991_IGN72GrandeTerre.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'ESRI-Ncl 0.05m',1);
INSERT INTO "grid_transformation" VALUES('EPSG','15962','RGNC91-93 to IGN72 Grande Terre (6)','Emulation using NTv2 method of tfm IGN72 Grande Terre to RGNC91-93 (4) (code 15945). Note reversal sign of of parameter values in grid file.','Accuracy better than +/- 0.1 metre.','EPSG','9615','NTv2','EPSG','4749','EPSG','4662','EPSG','2822',0.1,'EPSG','8656','Latitude and longitude difference file','RGNC1991_IGN72GrandeTerre.gsb',NULL,NULL,NULL,NULL,NULL,NULL,'ESRI-Ncl 0.1m',0);
