Well Known Text
 
WKT Version 2
COORDINATEOPERATION["RRAF 1991 to IGN 2008 LD height (1)",VERSION["IGN Glp Des"],SOURCECRS[GEOGCRS["RRAF 1991",DATUM["Reseau de Reference des Antilles Francaises 1991",ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",7019]],ID["EPSG",1047]],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",4557]]],TARGETCRS[VERTCRS["IGN 2008 LD height",VDATUM["IGN 2008 LD",ID["EPSG",1250]],CS[vertical,1,ID["EPSG",6499]],AXIS["Gravity-related height (H)",up],LENGTHUNIT["metre",1,ID["EPSG",9001]],GEOIDMODEL["RGAF09 to IGN 2008 LD height (1)",ID["EPSG",9131]],GEOIDMODEL["RRAF 1991 to IGN 2008 LD height (1)",ID["EPSG",9132]],ID["EPSG",9130]]],METHOD["Geographic3D to GravityRelatedHeight (IGN2009)",ID["EPSG",1073]],PARAMETERFILE["Geoid (height correction) model file","RALDW842016.mnt",ID["EPSG",8666]],OPERATIONACCURACY[0.2],ID["EPSG",9132]]


