Scope: Topographic mapping.
Area of use: France - Alsace.
Definition: OGC Well Known Text
DATUM["Nord_de_Guerre_Paris", SPHEROID["Plessis 1817",6376523,308.64, AUTHORITY["EPSG","7027"]], AUTHORITY["EPSG","6902"]], PRIMEM["Paris",2.33722917, AUTHORITY["EPSG","8903"]]
Definition: OGC Well Known Text 2 (2019)
DATUM["Nord de Guerre (Paris)", ELLIPSOID["Plessis 1817",6376523,308.64, LENGTHUNIT["metre",1]], ID["EPSG",6902]], PRIMEM["Paris",2.5969213, ANGLEUNIT["grad",0.0157079632679489], ID["EPSG",8903]]
Definition: ESRI Well Known Text
DATUM["D_Nord_de_Guerre", SPHEROID["Plessis_1817",6376523.0,308.64]], PRIMEM["Paris",2.33722917]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Nord de Guerre (Paris)", "ellipsoid": { "name": "Plessis 1817", "semi_major_axis": 6376523, "inverse_flattening": 308.64 }, "prime_meridian": { "name": "Paris", "longitude": { "value": 2.5969213, "unit": { "type": "AngularUnit", "name": "grad", "conversion_factor": 0.0157079632679489 } } }, "scope": "Topographic mapping.", "area": "France - Alsace.", "bbox": { "south_latitude": 47.42, "west_longitude": 6.84, "north_latitude": 49.07, "east_longitude": 8.23 }, "id": { "authority": "EPSG", "code": 6902 } }