EPSG:9517Compound
SHGD2015 + SHVD2015 height
Type
Compound
Unit
—
Area of use
St Helena, Ascension and Tristan da Cunha - St Helena Island - onshore.
proj4 definition
+proj=longlat +ellps=GRS80 +vunits=m +no_defs +type=crs
Well-Known Text (WKT)
COMPD_CS["SHGD2015 + SHVD2015 height",GEOGCS["SHGD2015",DATUM["St_Helena_Geodetic_Datum_2015",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1174"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","7886"]],VERT_CS["SHVD2015 height",VERT_DATUM["St. Helena Vertical Datum 2015",2005,AUTHORITY["EPSG","1177"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","7890"]],AUTHORITY["EPSG","9517"]]