Geocentric translations (geog2D domain)
Derived at 9 stations. Accuracy 5m, 3m and 3m in X, Y and Z axes.
U.S. Defense Mapping Agency TR8350.2 September 1987.
2020-03-14
Engineering survey, topographic mapping.
Western Sahara - onshore north of 27grads North (24°18'N).
Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: m.
1035764.12 1035578.01
426756.59 573049.87
1632926.07 1521278.59
-13.24 27.66
-1.01 35.97
Definition: OGC Well Known Text
PROJCS["Merchich / Sahara Nord", GEOGCS["Merchich", DATUM["Merchich", SPHEROID["Clarke 1880 (IGN)",6378249.2,293.466021293627], TOWGS84[31,146,47,0,0,0,0]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4261"]], PROJECTION["Lambert_Conformal_Conic_1SP"], PARAMETER["latitude_of_origin",26.1], PARAMETER["central_meridian",-5.4], PARAMETER["scale_factor",0.999616304], PARAMETER["false_easting",1200000], PARAMETER["false_northing",400000], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","26194"]]
Definition: OGC Well Known Text 2 (2019)
PROJCRS["Merchich / Sahara Nord", BASEGEOGCRS["Merchich", DATUM["Merchich", ELLIPSOID["Clarke 1880 (IGN)",6378249.2,293.466021293627, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4261]], CONVERSION["Sahara Nord", METHOD["Lambert Conic Conformal (1SP)", ID["EPSG",9801]], PARAMETER["Latitude of natural origin",29, ANGLEUNIT["grad",0.0157079632679489], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-6, ANGLEUNIT["grad",0.0157079632679489], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",0.999616304, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",1200000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",400000, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["easting (X)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["northing (Y)",north, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Engineering survey, topographic mapping."], AREA["Western Sahara - onshore north of 27grads North (24°18'N)."], BBOX[24.29,-15.42,27.67,-8.66]], ID["EPSG",26194]]
Definition: ESRI Well Known Text
PROJCS["Merchich_Sahara_Nord", GEOGCS["GCS_Merchich", DATUM["D_Merchich", SPHEROID["Clarke_1880_IGN",6378249.2,293.466021293627]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Lambert_Conformal_Conic"], PARAMETER["False_Easting",1200000.0], PARAMETER["False_Northing",400000.0], PARAMETER["Central_Meridian",-5.4], PARAMETER["Standard_Parallel_1",26.1], PARAMETER["Scale_Factor",0.999616304], PARAMETER["Latitude_Of_Origin",26.1], UNIT["Meter",1.0]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "Merchich / Sahara Nord", "base_crs": { "name": "Merchich", "datum": { "type": "GeodeticReferenceFrame", "name": "Merchich", "ellipsoid": { "name": "Clarke 1880 (IGN)", "semi_major_axis": 6378249.2, "inverse_flattening": 293.466021293627 } }, "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": 4261 } }, "conversion": { "name": "Sahara Nord", "method": { "name": "Lambert Conic Conformal (1SP)", "id": { "authority": "EPSG", "code": 9801 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 29, "unit": { "type": "AngularUnit", "name": "grad", "conversion_factor": 0.0157079632679489 }, "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -6, "unit": { "type": "AngularUnit", "name": "grad", "conversion_factor": 0.0157079632679489 }, "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999616304, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 1200000, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 400000, "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": "Western Sahara - onshore north of 27grads North (24°18'N).", "bbox": { "south_latitude": 24.29, "west_longitude": -15.42, "north_latitude": 27.67, "east_longitude": -8.66 }, "id": { "authority": "EPSG", "code": 26194 } }
Definition: GeoServer
26194=PROJCS["Merchich / Sahara Nord",GEOGCS["Merchich",DATUM["Merchich",SPHEROID["Clarke 1880 (IGN)",6378249.2,293.466021293627],TOWGS84[31,146,47,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4261"]],PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",26.1],PARAMETER["central_meridian",-5.4],PARAMETER["scale_factor",0.999616304],PARAMETER["false_easting",1200000],PARAMETER["false_northing",400000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","26194"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=lcc +lat_1=26.1 +lat_0=26.1 +lon_0=-5.4 +k_0=0.999616304 +x_0=1200000 +y_0=400000 +ellps=clrk80ign +towgs84=31,146,47,0,0,0,0 +units=m +no_defs +type=crs"> <Layer srs="+proj=lcc +lat_1=26.1 +lat_0=26.1 +lon_0=-5.4 +k_0=0.999616304 +x_0=1200000 +y_0=400000 +ellps=clrk80ign +towgs84=31,146,47,0,0,0,0 +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 26194, 'EPSG', 26194, '+proj=lcc +lat_1=26.1 +lat_0=26.1 +lon_0=-5.4 +k_0=0.999616304 +x_0=1200000 +y_0=400000 +ellps=clrk80ign +towgs84=31,146,47,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["Merchich / Sahara Nord",GEOGCS["Merchich",DATUM["Merchich",SPHEROID["Clarke 1880 (IGN)",6378249.2,293.466021293627],TOWGS84[31,146,47,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4261"]],PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",26.1],PARAMETER["central_meridian",-5.4],PARAMETER["scale_factor",0.999616304],PARAMETER["false_easting",1200000],PARAMETER["false_northing",400000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","26194"]]');