VERTCRS["Macao height",
    VDATUM["Macao Height Datum"],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Geodesy, engineering survey, topographic mapping."],
        AREA["China - Macao - onshore and offshore."],
        BBOX[22.06,113.52,22.23,113.68]],
    ID["EPSG",8434]]