{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"VerticalCRS","name":"LUREF","datum":{"type":"VerticalReferenceFrame","name":"D_Luxembourg_Reference_Frame"},"coordinate_system":{"subtype":"vertical","axis":[{"name":"Ellipsoidal height","abbreviation":"h","direction":"up","unit":"metre"}]},"scope":"Not known.","area":"Luxembourg.","bbox":{"south_latitude":49.44,"west_longitude":5.73,"north_latitude":50.19,"east_longitude":6.53},"id":{"authority":"ESRI","code":115886}}