Well Known Text

COMPOUNDCRS["RGAF09 / UTM zone 20N + Martinique 1987 height",PROJCRS["RGAF09 / UTM zone 20N",BASEGEOGCRS["RGAF09",DATUM["Reseau Geodesique des Antilles Francaises 2009",ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",7019]],ID["EPSG",1073]],ID["EPSG",5489]],CONVERSION["UTM zone 20N",METHOD["Transverse Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural origin",0,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",-63,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],ID["EPSG",8802]],PARAMETER["Scale factor at natural origin",0.9996,SCALEUNIT["unity",1,ID["EPSG",9201]],ID["EPSG",8805]],PARAMETER["False easting",500000,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",8806]],PARAMETER["False northing",0,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",8807]],ID["EPSG",16020]],CS[Cartesian,2,ID["EPSG",4400]],AXIS["Easting (E)",east],AXIS["Northing (N)",north],LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",5490]],VERTCRS["Martinique 1987 height",VDATUM["Martinique 1987",ID["EPSG",5154]],CS[vertical,1,ID["EPSG",6499]],AXIS["Gravity-related height (H)",up],LENGTHUNIT["metre",1,ID["EPSG",9001]],GEOIDMODEL["RRAF 1991 to Martinique 1987 height (1)",ID["EPSG",4561]],GEOIDMODEL["RGAF09 to Martinique 1987 height (1)",ID["EPSG",5502]],GEOIDMODEL["RGAF09 to Martinique 1987 height (2)",ID["EPSG",9136]],ID["EPSG",5756]],ID["EPSG",10633]]