{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"CompoundCRS","name":"RGAF09 + Martinique 1987 height","components":[{"type":"GeographicCRS","name":"RGAF09","datum":{"type":"GeodeticReferenceFrame","name":"Reseau Geodesique des Antilles Francaises 2009","ellipsoid":{"name":"GRS 1980","semi_major_axis":6378137,"inverse_flattening":298.257222101}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":"degree"},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":"degree"}]},"remarks":"Replaces RRAF 1991. See CRS code 7086 for alternate system with axes reversed used by IGN for GIS purposes."},{"type":"VerticalCRS","name":"Martinique 1987 height","datum":{"type":"VerticalReferenceFrame","name":"Martinique 1987"},"coordinate_system":{"subtype":"vertical","axis":[{"name":"Gravity-related height","abbreviation":"H","direction":"up","unit":"metre"}]}}],"scope":"Spatial referencing.","area":"Martinique - onshore.","bbox":{"south_latitude":14.35,"west_longitude":-61.29,"north_latitude":14.93,"east_longitude":-60.76},"id":{"authority":"EPSG","code":9537}}