20037=COMPD_CS["NAD83(CSRS)v4 + CGVD2013a(2002) height",GEOGCS["NAD83(CSRS)v4",DATUM["North_American_Datum_of_1983_CSRS_version_4",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1195"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","8246"]],VERT_CS["CGVD2013a(2002) height",VERT_DATUM["Canadian Geodetic Vertical Datum of 2013 (CGG2013a) epoch 2002",2005,AUTHORITY["EPSG","1325"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","20034"]],AUTHORITY["EPSG","20037"]]