EPSG:2136 — Accra / Ghana National Grid

Projected · Ghana - onshore

Export Formats

OGC WKT

PROJCS[
    "Accra / Ghana National Grid",
    GEOGCS[
        "Accra",
        DATUM[
            "Accra",
            SPHEROID["War Office",6378300,296],
            TOWGS84[-199,32,322,0,0,0,0]
        ],
        PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4168"]
    ],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",4.66666666666667],
    PARAMETER["central_meridian",-1],
    PARAMETER["scale_factor",0.99975],
    PARAMETER["false_easting",900000],
    PARAMETER["false_northing",0],
    UNIT["Gold Coast foot",0.304799710181509],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","2136"]
]

WKT2

PROJCRS[
    "Accra / Ghana National Grid",
    BASEGEOGCRS[
        "Accra",
        DATUM[
            "Accra",
            ELLIPSOID[
                "War Office",
                6378300,
                296,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7029]
            ],
            ID["EPSG",6168]
        ],
        ID["EPSG",4168]
    ],
    CONVERSION[
        "Ghana National Grid",
        METHOD["Transverse Mercator",ID["EPSG",9807]],
        PARAMETER[
            "Latitude of natural origin",
            4.66666666666695,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8801]
        ],
        PARAMETER[
            "Longitude of natural origin",
            -1,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8802]
        ],
        PARAMETER[
            "Scale factor at natural origin",
            0.99975,
            SCALEUNIT["unity",1,ID["EPSG",9201]],
            ID["EPSG",8805]
        ],
        PARAMETER[
            "False easting",
            900000,
            LENGTHUNIT["Gold Coast foot",0.304799710181509,ID["EPSG",9094]],
            ID["EPSG",8806]
        ],
        PARAMETER[
            "False northing",
            0,
            LENGTHUNIT["Gold Coast foot",0.304799710181509,ID["EPSG",9094]],
            ID["EPSG",8807]
        ],
        ID["EPSG",19959]
    ],
    CS[Cartesian,2,ID["EPSG",4404]],
    AXIS["Easting (E)",east],
    AXIS["Northing (N)",north],
    LENGTHUNIT["Gold Coast foot",0.304799710181509,ID["EPSG",9094]],
    ID["EPSG",2136]
]

PROJ.4

+proj=tmerc +lat_0=4.66666666666667 +lon_0=-1 +k=0.99975 +x_0=274319.739163358 +y_0=0 +a=6378300 +rf=296 +towgs84=-199,32,322,0,0,0,0 +to_meter=0.304799710181509 +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:2136", "+proj=tmerc +lat_0=4.66666666666667 +lon_0=-1 +k=0.99975 +x_0=274319.739163358 +y_0=0 +a=6378300 +rf=296 +towgs84=-199,32,322,0,0,0,0 +to_meter=0.304799710181509 +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 2136,
  "name": "Accra / Ghana National Grid",
  "kind": "projected",
  "area": "Ghana - onshore",
  "unit": "Gold Coast foot",
  "bbox": [
    4.67,
    -3.25,
    11.16,
    1.23
  ],
  "proj4": "+proj=tmerc +lat_0=4.66666666666667 +lon_0=-1 +k=0.99975 +x_0=274319.739163358 +y_0=0 +a=6378300 +rf=296 +towgs84=-199,32,322,0,0,0,0 +to_meter=0.304799710181509 +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 (2136, 'EPSG', 2136, '+proj=tmerc +lat_0=4.66666666666667 +lon_0=-1 +k=0.99975 +x_0=274319.739163358 +y_0=0 +a=6378300 +rf=296 +towgs84=-199,32,322,0,0,0,0 +to_meter=0.304799710181509 +no_defs +type=crs', 'PROJCS["Accra / Ghana National Grid",GEOGCS["Accra",DATUM["Accra",SPHEROID["War Office",6378300,296],TOWGS84[-199,32,322,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4168"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",4.66666666666667],PARAMETER["central_meridian",-1],PARAMETER["scale_factor",0.99975],PARAMETER["false_easting",900000],PARAMETER["false_northing",0],UNIT["Gold Coast foot",0.304799710181509],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2136"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=tmerc"
  "+lat_0=4.66666666666667"
  "+lon_0=-1"
  "+k=0.99975"
  "+x_0=274319.739163358"
  "+y_0=0"
  "+a=6378300"
  "+rf=296"
  "+towgs84=-199,32,322,0,0,0,0"
  "+to_meter=0.304799710181509"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

2136=PROJCS["Accra / Ghana National Grid",GEOGCS["Accra",DATUM["Accra",SPHEROID["War Office",6378300,296],TOWGS84[-199,32,322,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4168"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",4.66666666666667],PARAMETER["central_meridian",-1],PARAMETER["scale_factor",0.99975],PARAMETER["false_easting",900000],PARAMETER["false_northing",0],UNIT["Gold Coast foot",0.304799710181509],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2136"]]

Related Coordinate Systems

Available Transformations (5)

Transformations inherited from base CRS: EPSG:4168 (Accra)

Transformation	Source → Target	Accuracy (m)
Accra to WGS 84 (4)	4168 → 4326	6
Accra to WGS 84 (1)	4168 → 4326	25
Accra to WGS 72BE (1)	4168 → 4324	25
Accra to WGS 84 (3)	4168 → 4326	25
Accra to WGS 84 (2)	4168 → 4326	26

Other CRS using Accra

Frequently Asked Questions

How do I add EPSG:2136 to GeoServer?

Add the following definition to your GeoServer configuration:

2136=PROJCS["Accra / Ghana National Grid",GEOGCS["Accra",DATUM["Accra",SPHEROID["War Office",6378300,296],TOWGS84[-199,32,322,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4168"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",4.66666666666667],PARAMETER["central_meridian",-1],PARAMETER["scale_factor",0.99975],PARAMETER["false_easting",900000],PARAMETER["false_northing",0],UNIT["Gold Coast foot",0.304799710181509],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2136"]]

Read the full GeoServer guide →

How do I add EPSG:2136 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (2136, 'EPSG', 2136, '+proj=tmerc +lat_0=4.66666666666667 +lon_0=-1 +k=0.99975 +x_0=274319.739163358 +y_0=0 +a=6378300 +rf=296 +towgs84=-199,32,322,0,0,0,0 +to_meter=0.304799710181509 +no_defs +type=crs', 'PROJCS["Accra / Ghana National Grid",GEOGCS["Accra",DATUM["Accra",SPHEROID["War Office",6378300,296],TOWGS84[-199,32,322,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4168"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",4.66666666666667],PARAMETER["central_meridian",-1],PARAMETER["scale_factor",0.99975],PARAMETER["false_easting",900000],PARAMETER["false_northing",0],UNIT["Gold Coast foot",0.304799710181509],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2136"]]');

Read the full PostGIS guide →

How do I add EPSG:2136 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=tmerc"
  "+lat_0=4.66666666666667"
  "+lon_0=-1"
  "+k=0.99975"
  "+x_0=274319.739163358"
  "+y_0=0"
  "+a=6378300"
  "+rf=296"
  "+towgs84=-199,32,322,0,0,0,0"
  "+to_meter=0.304799710181509"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:2136 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:2136", "+proj=tmerc +lat_0=4.66666666666667 +lon_0=-1 +k=0.99975 +x_0=274319.739163358 +y_0=0 +a=6378300 +rf=296 +towgs84=-199,32,322,0,0,0,0 +to_meter=0.304799710181509 +no_defs +type=crs");

Read the full Proj4js guide →