COMPD_CS["Mare IGN53 geographiques (dms) et NIVELLEMENT GENERAL DE MARE (IGN 1991 MR)",GEOGCS["Mare IGN53 geographiques (dms)",DATUM["IGN53_Mare",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],AUTHORITY["EPSG","6641"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["IGNF","MARE53G"]],VERT_CS["NIVELLEMENT GENERAL DE MARE (IGN 1991 MR)",VERT_DATUM["NIVELLEMENT GENERAL DE MARE (IGN 1991 MR)",2005,AUTHORITY["IGNF","REA035"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["IGNF","MARE91"]],AUTHORITY["IGNF","MARE53G.MARE91"]]