EPSG:4307 — Nord Sahara 1959

Geographic 2D · Algeria

Export Formats

OGC WKT

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"]
]

WKT2

GEOGCRS[
    "Nord Sahara 1959",
    DATUM[
        "Nord Sahara 1959",
        ELLIPSOID[
            "Clarke 1880 (RGS)",
            6378249.145,
            293.465,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",7012]
        ],
        ID["EPSG",6307]
    ],
    CS[ellipsoidal,2,ID["EPSG",6422]],
    AXIS["Geodetic latitude (Lat)",north],
    AXIS["Geodetic longitude (Lon)",east],
    ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
    ID["EPSG",4307]
]

PROJ.4

+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-209.3622,-87.8162,404.6198,0.0046,3.4784,0.5805,-1.4547 +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:4307", "+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-209.3622,-87.8162,404.6198,0.0046,3.4784,0.5805,-1.4547 +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 4307,
  "name": "Nord Sahara 1959",
  "kind": "geographic 2D",
  "area": "Algeria",
  "unit": "degree (supplier to define representation)",
  "bbox": [
    18.97,
    -8.67,
    38.8,
    11.99
  ],
  "proj4": "+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-209.3622,-87.8162,404.6198,0.0046,3.4784,0.5805,-1.4547 +no_defs +type=crs"
}

PostGIS

How to add a projection to PostGIS? →

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (4307, 'EPSG', 4307, '+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-209.3622,-87.8162,404.6198,0.0046,3.4784,0.5805,-1.4547 +no_defs +type=crs', '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"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=longlat"
  "+a=6378249.145"
  "+rf=293.465"
  "+towgs84=-209.3622,-87.8162,404.6198,0.0046,3.4784,0.5805,-1.4547"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

4307=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"]]

Related Coordinate Systems

Available Transformations (19)

Transformation	Source → Target	Accuracy (m)
Nord Sahara 1959 to WGS 84 (9)	4307 → 4326	1
Nord Sahara 1959 to WGS 84 (11)	4307 → 4326	1
Nord Sahara 1959 to WGS 84 (4)	4307 → 4326	5
Nord Sahara 1959 to WGS 84 (8)	4307 → 4326	5
Nord Sahara 1959 to RGSH2020 (1)	4307 → 10299	5
Nord Sahara 1959 to RGSH2020 (4)	4307 → 10299	5
Nord Sahara 1959 to RGSH2020 (5)	4307 → 10299	5
Nord Sahara 1959 to WGS 84 (7)	4307 → 4326	5
Nord Sahara 1959 to WGS 72BE (1)	4307 → 4324	8
Nord Sahara 1959 to WGS 84 (3)	4307 → 4326	9

Other CRS for DZ

Other CRS using Nord Sahara 1959

Frequently Asked Questions

How do I add EPSG:4307 to GeoServer?

Add the following definition to your GeoServer configuration:

4307=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"]]

Read the full GeoServer guide →

How do I add EPSG:4307 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (4307, 'EPSG', 4307, '+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-209.3622,-87.8162,404.6198,0.0046,3.4784,0.5805,-1.4547 +no_defs +type=crs', '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"]]');

Read the full PostGIS guide →

How do I add EPSG:4307 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=longlat"
  "+a=6378249.145"
  "+rf=293.465"
  "+towgs84=-209.3622,-87.8162,404.6198,0.0046,3.4784,0.5805,-1.4547"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:4307 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:4307", "+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-209.3622,-87.8162,404.6198,0.0046,3.4784,0.5805,-1.4547 +no_defs +type=crs");

Read the full Proj4js guide →

Type

Geographic 2D

Unit

degree (supplier to define representation)

Datum

Nord Sahara 1959

Ellipsoid

Clarke 1880 (RGS)

Prime Meridian

Greenwich

Area of Use

Algeria

Algeria - onshore and offshore.

Coordinate System

Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: degree

Center Coordinates

1.66 28.88

Projected Bounds

38.80 -8.6711.99 18.97

WGS84 Bounds

38.80 -8.6711.99 18.97

Data Source

EPSG

Information Source

"Le System Geodesique Nord-Sahara"; IGN Paris

Revision Date

2012-04-18

Scope

Geodesy.

Remarks

Sometimes incorrectly referred to as Voirol Unifie 1960: this is NOT a GeogCRS but two projected CRSs based on Nord Sahara 1959 (codes 30791-92). Strictly applicable only to north of 32°N but extended southwards non-homogoneously by oil industry.

Country Code

EPSG

4307