VERTCRS["HKPD depth",VDATUM["Hong Kong Principal Datum"],CS[vertical,1],AXIS["depth (D)",down,LENGTHUNIT["metre",1]],USAGE[SCOPE["Intermediate stage in transformations - not used otherwise."],AREA["China - Hong Kong - onshore."],BBOX[22.19,113.82,22.56,114.39]],ID["EPSG",7976]]