VERTCRS["PHD93 height",VDATUM["PDO Height Datum 1993"],CS[vertical,1],AXIS["gravity-related height (H)",up,LENGTHUNIT["metre",1]],USAGE[SCOPE["Geodesy, engineering survey."],AREA["Oman - onshore. Includes Musandam and the Kuria Muria (Al Hallaniyah) islands."],BBOX[16.59,51.99,26.58,59.91]],ID["EPSG",5724]]