{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"ProjectedCRS","name":"Nord Sahara 1959 / Sud Algerie","base_crs":{"type":"GeographicCRS","name":"Nord Sahara 1959","datum":{"type":"GeodeticReferenceFrame","name":"Nord Sahara 1959","ellipsoid":{"name":"Clarke 1880 (RGS)","semi_major_axis":6378249.145,"inverse_flattening":293.465}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":"degree"},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":"degree"}]},"id":{"authority":"EPSG","code":4307}},"conversion":{"name":"Sud Algerie","method":{"name":"Lambert Conic Conformal (1SP)","id":{"authority":"EPSG","code":9801}},"parameters":[{"name":"Latitude of natural origin","value":37,"unit":{"type":"AngularUnit","name":"grad","conversion_factor":0.0157079632679489},"id":{"authority":"EPSG","code":8801}},{"name":"Longitude of natural origin","value":3,"unit":{"type":"AngularUnit","name":"grad","conversion_factor":0.0157079632679489},"id":{"authority":"EPSG","code":8802}},{"name":"Scale factor at natural origin","value":0.999625769,"unit":"unity","id":{"authority":"EPSG","code":8805}},{"name":"False easting","value":500135,"unit":"metre","id":{"authority":"EPSG","code":8806}},{"name":"False northing","value":300090,"unit":"metre","id":{"authority":"EPSG","code":8807}}]},"coordinate_system":{"subtype":"Cartesian","axis":[{"name":"Easting","abbreviation":"X","direction":"east","unit":"metre"},{"name":"Northing","abbreviation":"Y","direction":"north","unit":"metre"}]},"scope":"Engineering survey, topographic mapping.","area":"Algeria - 35 grads to 38.5 grads North (31°30'N to 34°39'N).","bbox":{"south_latitude":31.49,"west_longitude":-3.85,"north_latitude":34.66,"east_longitude":9.22},"id":{"authority":"EPSG","code":30792}}