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Geodetic CRS: Jamaica 1875
Datum: Jamaica 1875
Ellipsoid: Clarke 1880
Prime meridian: Greenwich
Data source: EPSG
Information source: Survey Department
Revision date: 2007-01-19
Scope: Topographic mapping.
Remarks: Derived by least squares fit at primary triangulation stations. Accuracy will be less outside of this network due to extrapolation.
Method: Affine parametric transformation
Area of use: Jamaica - onshore.
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["Jamaica 1875 / Jamaica (Old Grid) to JAD69 / Jamaica National Grid (1)", VERSION["SD-Jam"], SOURCECRS[ PROJCRS["Jamaica 1875 / Jamaica (Old Grid)", BASEGEOGCRS["Jamaica 1875", DATUM["Jamaica 1875", ELLIPSOID["Clarke 1880",20926202,293.466307655636, LENGTHUNIT["Clarke's foot",0.3047972654]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4241]], CONVERSION["Jamaica (Old Grid)", METHOD["Lambert Conic Conformal (1SP)", ID["EPSG",9801]], PARAMETER["Latitude of natural origin",18, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-77, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",1, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",550000, LENGTHUNIT["Clarke's foot",0.3047972654], ID["EPSG",8806]], PARAMETER["False northing",400000, LENGTHUNIT["Clarke's foot",0.3047972654], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["(E)",east, ORDER[1], LENGTHUNIT["Clarke's foot",0.3047972654]], AXIS["(N)",north, ORDER[2], LENGTHUNIT["Clarke's foot",0.3047972654]], ID["EPSG",24100]]], TARGETCRS[ PROJCRS["JAD69 / Jamaica National Grid", BASEGEOGCRS["JAD69", DATUM["Jamaica 1969", ELLIPSOID["Clarke 1866",6378206.4,294.978698213898, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4242]], CONVERSION["Jamaica National Grid", METHOD["Lambert Conic Conformal (1SP)", ID["EPSG",9801]], PARAMETER["Latitude of natural origin",18, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-77, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",1, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",250000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",150000, 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]], ID["EPSG",24200]]], METHOD["Affine parametric transformation", ID["EPSG",9624]], PARAMETER["A0",82357.457, LENGTHUNIT["metre",1], ID["EPSG",8623]], PARAMETER["A1",0.304794369, SCALEUNIT["coefficient",1], ID["EPSG",8624]], PARAMETER["A2",1.5417425E-05, SCALEUNIT["coefficient",1], ID["EPSG",8625]], PARAMETER["B0",28091.324, LENGTHUNIT["metre",1], ID["EPSG",8639]], PARAMETER["B1",-1.5417425E-05, SCALEUNIT["coefficient",1], ID["EPSG",8640]], PARAMETER["B2",0.304794369, SCALEUNIT["coefficient",1], ID["EPSG",8641]], OPERATIONACCURACY[1.5], USAGE[ SCOPE["Topographic mapping."], AREA["Jamaica - onshore."], BBOX[17.64,-78.43,18.58,-76.17]], ID["EPSG",10087], REMARK["Derived by least squares fit at primary triangulation stations. Accuracy will be less outside of this network due to extrapolation."]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Transformation", "name": "Jamaica 1875 / Jamaica (Old Grid) to JAD69 / Jamaica National Grid (1)", "source_crs": { "type": "ProjectedCRS", "name": "Jamaica 1875 / Jamaica (Old Grid)", "base_crs": { "name": "Jamaica 1875", "datum": { "type": "GeodeticReferenceFrame", "name": "Jamaica 1875", "ellipsoid": { "name": "Clarke 1880", "semi_major_axis": { "value": 20926202, "unit": { "type": "LinearUnit", "name": "Clarke's foot", "conversion_factor": 0.3047972654 } }, "semi_minor_axis": { "value": 20854895, "unit": { "type": "LinearUnit", "name": "Clarke's foot", "conversion_factor": 0.3047972654 } } } }, "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": 4241 } }, "conversion": { "name": "Jamaica (Old Grid)", "method": { "name": "Lambert Conic Conformal (1SP)", "id": { "authority": "EPSG", "code": 9801 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 18, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -77, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 1, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 550000, "unit": { "type": "LinearUnit", "name": "Clarke's foot", "conversion_factor": 0.3047972654 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 400000, "unit": { "type": "LinearUnit", "name": "Clarke's foot", "conversion_factor": 0.3047972654 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "E", "direction": "east", "unit": { "type": "LinearUnit", "name": "Clarke's foot", "conversion_factor": 0.3047972654 } }, { "name": "Northing", "abbreviation": "N", "direction": "north", "unit": { "type": "LinearUnit", "name": "Clarke's foot", "conversion_factor": 0.3047972654 } } ] }, "id": { "authority": "EPSG", "code": 24100 } }, "target_crs": { "type": "ProjectedCRS", "name": "JAD69 / Jamaica National Grid", "base_crs": { "name": "JAD69", "datum": { "type": "GeodeticReferenceFrame", "name": "Jamaica 1969", "ellipsoid": { "name": "Clarke 1866", "semi_major_axis": 6378206.4, "semi_minor_axis": 6356583.8 } }, "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": 4242 } }, "conversion": { "name": "Jamaica National Grid", "method": { "name": "Lambert Conic Conformal (1SP)", "id": { "authority": "EPSG", "code": 9801 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 18, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -77, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 1, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 250000, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 150000, "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" } ] }, "id": { "authority": "EPSG", "code": 24200 } }, "method": { "name": "Affine parametric transformation", "id": { "authority": "EPSG", "code": 9624 } }, "parameters": [ { "name": "A0", "value": 82357.457, "unit": "metre", "id": { "authority": "EPSG", "code": 8623 } }, { "name": "A1", "value": 0.304794369, "unit": { "type": "ScaleUnit", "name": "coefficient", "conversion_factor": 1 }, "id": { "authority": "EPSG", "code": 8624 } }, { "name": "A2", "value": 1.5417425e-05, "unit": { "type": "ScaleUnit", "name": "coefficient", "conversion_factor": 1 }, "id": { "authority": "EPSG", "code": 8625 } }, { "name": "B0", "value": 28091.324, "unit": "metre", "id": { "authority": "EPSG", "code": 8639 } }, { "name": "B1", "value": -1.5417425e-05, "unit": { "type": "ScaleUnit", "name": "coefficient", "conversion_factor": 1 }, "id": { "authority": "EPSG", "code": 8640 } }, { "name": "B2", "value": 0.304794369, "unit": { "type": "ScaleUnit", "name": "coefficient", "conversion_factor": 1 }, "id": { "authority": "EPSG", "code": 8641 } } ], "accuracy": "1.5", "scope": "Topographic mapping.", "area": "Jamaica - onshore.", "bbox": { "south_latitude": 17.64, "west_longitude": -78.43, "north_latitude": 18.58, "east_longitude": -76.17 }, "id": { "authority": "EPSG", "code": 10087 }, "remarks": "Derived by least squares fit at primary triangulation stations. Accuracy will be less outside of this network due to extrapolation." }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=affine +xoff=82357.457 +s11=0.304794369 +s12=1.5417425e-05 +yoff=28091.324 +s21=-1.5417425e-05 +s22=0.304794369"> <Layer srs="+proj=affine +xoff=82357.457 +s11=0.304794369 +s12=1.5417425e-05 +yoff=28091.324 +s21=-1.5417425e-05 +s22=0.304794369"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 10087, 'EPSG', 10087, '+proj=affine +xoff=82357.457 +s11=0.304794369 +s12=1.5417425e-05 +yoff=28091.324 +s21=-1.5417425e-05 +s22=0.304794369', 'None');
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