{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"VerticalCRS","name":"Alboran height","datum":{"type":"VerticalReferenceFrame","name":"Alboran"},"coordinate_system":{"subtype":"vertical","axis":[{"name":"Gravity-related height","abbreviation":"H","direction":"up","unit":"metre"}]},"scope":"Geodesy, engineering survey, topographic mapping.","area":"Spain - Alboran island - onshore.","bbox":{"south_latitude":35.88,"west_longitude":-3.1,"north_latitude":36,"east_longitude":-2.96},"id":{"authority":"EPSG","code":10353}}