{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"VerticalCRS","name":"Estonia_1997","datum":{"type":"VerticalReferenceFrame","name":"D_Estonia_1997"},"coordinate_system":{"subtype":"vertical","axis":[{"name":"Ellipsoidal height","abbreviation":"h","direction":"up","unit":"metre"}]},"scope":"Not known.","area":"Estonia - onshore and offshore.","bbox":{"south_latitude":57.52,"west_longitude":20.37,"north_latitude":60,"east_longitude":28.2},"id":{"authority":"ESRI","code":115712}}