{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"VerticalCRS","name":"TWVD 2001 height","datum":{"type":"VerticalReferenceFrame","name":"Taiwan Vertical Datum 2001"},"coordinate_system":{"subtype":"vertical","axis":[{"name":"Gravity-related height","abbreviation":"H","direction":"up","unit":"metre"}]},"scope":"Geodesy, engineering survey, topographic mapping.","area":"Taiwan, Republic of China - onshore - Taiwan Island.","bbox":{"south_latitude":21.87,"west_longitude":119.99,"north_latitude":25.34,"east_longitude":122.06},"id":{"authority":"EPSG","code":8904}}