VERTCRS["ODN (Offshore) height",
    VDATUM["Ordnance Datum Newlyn (Offshore)"],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Geodesy, engineering survey."],
        AREA["United Kingdom (UK) - offshore between 2km from shore and boundary of UKCS within 49°45'N to 61°N and 9°W to 2°E."],
        BBOX[49.75,-9.01,61.01,2.01]],
    ID["EPSG",7707]]