EPSG:30731Projected
Nord Sahara 1959 / UTM zone 31N
Type
Projected
Unit
metre
Accuracy
1 m
Area of use
Algeria - between 0°E and 6°E (of Greenwich), onshore and offshore.
proj4 definition
+proj=utm +zone=31 +a=6378249.145 +rf=293.465 +towgs84=-209.3622,-87.8162,404.6198,0.0046,3.4784,0.5805,-1.4547 +units=m +no_defs +type=crs
Well-Known Text (WKT)
PROJCS["Nord Sahara 1959 / UTM zone 31N",GEOGCS["Nord Sahara 1959",DATUM["Nord_Sahara_1959",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465],TOWGS84[-209.3622,-87.8162,404.6198,0.0046,3.4784,0.5805,-1.4547]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4307"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",3],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","30731"]]