Well Known Text
WKT Version 2
COORDINATEOPERATION["RGF93 v2b to RGF93 v2b + NGF-IGN69 height (5)",VERSION["IGN Fra 20"],SOURCECRS[GEOGCRS["RGF93 v2b",DATUM["Reseau Geodesique Francais 1993 v2b",ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",7019]],ID["EPSG",1313]],CS[ellipsoidal,3,ID["EPSG",6423]],AXIS["Geodetic latitude (Lat)",north,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]]],AXIS["Geodetic longitude (Lon)",east,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]]],AXIS["Ellipsoidal height (h)",up,LENGTHUNIT["metre",1,ID["EPSG",9001]]],ID["EPSG",9781]]],TARGETCRS[COMPOUNDCRS["RGF93 v2b + NGF-IGN69 height",GEOGCRS["RGF93 v2b",DATUM["Reseau Geodesique Francais 1993 v2b",ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",7019]],ID["EPSG",1313]],CS[ellipsoidal,2,ID["EPSG",6422]],AXIS["Geodetic latitude (Lat)",north],AXIS["Geodetic longitude (Lon)",east],ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],ID["EPSG",9782]],VERTCRS["NGF-IGN69 height",VDATUM["Nivellement General de la France - IGN69",ID["EPSG",5119]],CS[vertical,1,ID["EPSG",6499]],AXIS["Gravity-related height (H)",up],LENGTHUNIT["metre",1,ID["EPSG",9001]],GEOIDMODEL["RGF93 v2 to NGF-IGN69 height (2)",ID["EPSG",8371]],GEOIDMODEL["RGF93 v2 to NGF-IGN69 height (3)",ID["EPSG",8885]],GEOIDMODEL["RGF93 v2b to NGF-IGN69 height (4)",ID["EPSG",9786]],GEOIDMODEL["RGF93 v2b to NGF-IGN69 height (5)",ID["EPSG",9876]],ID["EPSG",5720]],ID["EPSG",9785]]],METHOD["Geog3D to Geog2D+GravityRelatedHeight (IGN2009)",ID["EPSG",1095]],PARAMETERFILE["Geoid (height correction) model file","RAF20.tac",ID["EPSG",8666]],PARAMETER["EPSG code for Interpolation CRS",9782,ID["EPSG",1048]],OPERATIONACCURACY[0.01],ID["EPSG",9877]]