VERTCRS["NAP height",VDATUM["Normaal Amsterdams Peil"],CS[vertical,1],AXIS["gravity-related height (H)",up,LENGTHUNIT["metre",1]],USAGE[SCOPE["Geodesy, engineering survey."],AREA["Netherlands - onshore and offshore."],BBOX[50.75,2.53,55.77,7.22]],ID["EPSG",5709]]