metre
Engineering survey, topographic mapping.
None
Ghana - onshore and offshore.
Data Source: EPSG v11.016 2024-08-31
Datum: Leigon
Coordinate System: cartesian
Projection: Ghana Metre Grid
Geodetic CRS: Leigon
PROJCRS["Leigon / Ghana Metre Grid",
BASEGEOGCRS["Leigon",
DATUM["Leigon",
ELLIPSOID["Clarke 1880 (RGS)",6378249.145,293.465,
LENGTHUNIT["metre",1]]],
PRIMEM["Greenwich",0,
ANGLEUNIT["degree",0.0174532925199433]],
ID["EPSG",4250]],
CONVERSION["Ghana Metre Grid",
METHOD["Transverse Mercator",
ID["EPSG",9807]],
PARAMETER["Latitude of natural origin",4.66666666666667,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8801]],
PARAMETER["Longitude of natural origin",-1,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8802]],
PARAMETER["Scale factor at natural origin",0.99975,
SCALEUNIT["unity",1],
ID["EPSG",8805]],
PARAMETER["False easting",274319.51,
LENGTHUNIT["metre",1],
ID["EPSG",8806]],
PARAMETER["False northing",0,
LENGTHUNIT["metre",1],
ID["EPSG",8807]]],
CS[Cartesian,2],
AXIS["(E)",east,
ORDER[1],
LENGTHUNIT["metre",1]],
AXIS["(N)",north,
ORDER[2],
LENGTHUNIT["metre",1]],
USAGE[
SCOPE["Engineering survey, topographic mapping."],
AREA["Ghana - onshore and offshore."],
BBOX[1.4,-3.79,11.16,2.1]],
ID["EPSG",25000]]
{
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
"type": "ProjectedCRS",
"name": "Leigon / Ghana Metre Grid",
"base_crs": {
"name": "Leigon",
"datum": {
"type": "GeodeticReferenceFrame",
"name": "Leigon",
"ellipsoid": {
"name": "Clarke 1880 (RGS)",
"semi_major_axis": 6378249.145,
"inverse_flattening": 293.465
}
},
"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": 4250
}
},
"conversion": {
"name": "Ghana Metre Grid",
"method": {
"name": "Transverse Mercator",
"id": {
"authority": "EPSG",
"code": 9807
}
},
"parameters": [
{
"name": "Latitude of natural origin",
"value": 4.66666666666667,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8801
}
},
{
"name": "Longitude of natural origin",
"value": -1,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8802
}
},
{
"name": "Scale factor at natural origin",
"value": 0.99975,
"unit": "unity",
"id": {
"authority": "EPSG",
"code": 8805
}
},
{
"name": "False easting",
"value": 274319.51,
"unit": "metre",
"id": {
"authority": "EPSG",
"code": 8806
}
},
{
"name": "False northing",
"value": 0,
"unit": "metre",
"id": {
"authority": "EPSG",
"code": 8807
}
}
]
},
"coordinate_system": {
"subtype": "Cartesian",
"axis": [
{
"name": "Easting",
"abbreviation": "E",
"direction": "east",
"unit": "metre"
},
{
"name": "Northing",
"abbreviation": "N",
"direction": "north",
"unit": "metre"
}
]
},
"scope": "Engineering survey, topographic mapping.",
"area": "Ghana - onshore and offshore.",
"bbox": {
"south_latitude": 1.4,
"west_longitude": -3.79,
"north_latitude": 11.16,
"east_longitude": 2.1
},
"id": {
"authority": "EPSG",
"code": 25000
}
}
{'crs_wkt': 'PROJCRS["Leigon / Ghana Metre '
'Grid",BASEGEOGCRS["Leigon",DATUM["Leigon",ELLIPSOID["Clarke 1880 '
'(RGS)",6378249.145,293.465,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4250]],CONVERSION["Ghana '
'Metre Grid",METHOD["Transverse '
'Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural '
'origin",4.66666666666667,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude '
'of natural '
'origin",-1,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale '
'factor at natural '
'origin",0.99975,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False '
'easting",274319.51,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False '
'northing",0,LENGTHUNIT["metre",1],ID["EPSG",8807]]],CS[Cartesian,2],AXIS["(E)",east,ORDER[1],LENGTHUNIT["metre",1]],AXIS["(N)",north,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Engineering '
'survey, topographic mapping."],AREA["Ghana - onshore and '
'offshore."],BBOX[1.4,-3.79,11.16,2.1]],ID["EPSG",25000]]',
'false_easting': 274319.51,
'false_northing': 0.0,
'geographic_crs_name': 'Leigon',
'grid_mapping_name': 'transverse_mercator',
'horizontal_datum_name': 'Leigon',
'inverse_flattening': 293.465,
'latitude_of_projection_origin': 4.666666666666667,
'longitude_of_central_meridian': -1.0,
'longitude_of_prime_meridian': 0.0,
'prime_meridian_name': 'Greenwich',
'projected_crs_name': 'Leigon / Ghana Metre Grid',
'reference_ellipsoid_name': 'Clarke 1880 (RGS)',
'scale_factor_at_central_meridian': 0.99975,
'semi_major_axis': 6378249.145,
'semi_minor_axis': 6356514.8695497755}