{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"VerticalCRS","name":"Chatham Island 1959 height","datum":{"type":"VerticalReferenceFrame","name":"Waitangi (Chatham Island) 1959"},"coordinate_system":{"subtype":"vertical","axis":[{"name":"Gravity-related height","abbreviation":"H","direction":"up","unit":"metre"}]},"scope":"Geodesy, engineering survey, topographic mapping.","area":"New Zealand - Chatham Island - onshore.","bbox":{"south_latitude":-44.18,"west_longitude":-176.92,"north_latitude":-43.67,"east_longitude":-176.2},"id":{"authority":"EPSG","code":5771}}