COMPD_CS["WGS72 UTM fuseau 31 et NGF-IGN 1969",PROJCS["WGS72 UTM fuseau 31",GEOGCS["WGS72 geographiques (dms)",DATUM["World_Geodetic_System_1972",SPHEROID["WGS 72",6378135,298.26,AUTHORITY["EPSG","7043"]],AUTHORITY["EPSG","6322"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["IGNF","WGS72G"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",3],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["IGNF","WGS72UTM31"]],VERT_CS["NGF-IGN 1969",VERT_DATUM["NGF-IGN 1969",2005,AUTHORITY["IGNF","REA003"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["IGNF","IGN69"]],AUTHORITY["IGNF","WGS72UTM31.IGN69"]]