{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"ProjectedCRS","name":"Nord_Algerie_Ancienne_Degree","base_crs":{"type":"GeographicCRS","name":"Voirol 1875","datum":{"type":"GeodeticReferenceFrame","name":"Voirol 1875","ellipsoid":{"name":"Clarke 1880 (IGN)","semi_major_axis":6378249.2,"semi_minor_axis":6356515}},"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":4304},"remarks":"The appropriate usage of CRSs using the Voirol 1875 and 1879 datums is lost in antiquity. They differ by about 9 metres. Oil industry references to one could in reality be to either. All replaced by Nord Sahara 1959 (CRS code 4307)."},"conversion":{"name":"Nord_Algerie_Ancienne_Degree","method":{"name":"Lambert Conic Conformal (1SP)","id":{"authority":"EPSG","code":9801}},"parameters":[{"name":"Latitude of natural origin","value":36,"unit":"degree","id":{"authority":"EPSG","code":8801}},{"name":"Longitude of natural origin","value":2.7,"unit":"degree","id":{"authority":"EPSG","code":8802}},{"name":"Scale factor at natural origin","value":0.999625544,"unit":"unity","id":{"authority":"EPSG","code":8805}},{"name":"False easting","value":500000,"unit":"metre","id":{"authority":"EPSG","code":8806}},{"name":"False northing","value":300000,"unit":"metre","id":{"authority":"EPSG","code":8807}}]},"coordinate_system":{"subtype":"Cartesian","axis":[{"name":"Easting","abbreviation":"E","direction":"east","unit":"metre"},{"name":"Northing","abbreviation":"N","direction":"north","unit":"metre"}]},"scope":"Not known.","area":"Algeria - onshore north of 38.5 grads North (34°39'N).","bbox":{"south_latitude":34.64,"west_longitude":-2.22,"north_latitude":37.14,"east_longitude":8.64},"id":{"authority":"ESRI","code":102491}}