VERT_CS["GDA_1994",
    VERT_DATUM["D_GDA_1994",2002,
        AUTHORITY["ESRI","from_geogdatum_EPSG_6283"]],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["Ellipsoidal height",UP],
    AUTHORITY["ESRI","115715"]]