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Data source: ESRI
Information source: ESRI
Area of use: Channel Islands - Guernsey, Alderney, Sark
Description: Isle of Guernsey
&stroke=red&width=2&path=49.21,-3.06|49.94,-3.06|49.94,-2.03|49.21,-2.03|49.21,-3.06)
Center coordinates
37718.22 58349.4
Projected bounds:
124.65 17747.35
75173.84 99136.71
WGS84 bounds:
-3.06 49.21
-2.03 49.94
Definition: OGC Well Known Text
PROJCS["Guernsey_Grid", GEOGCS["WGS 84", DATUM["WGS_1984", SPHEROID["WGS 84",6378137,298.257223563, AUTHORITY["EPSG","7030"]], AUTHORITY["EPSG","6326"]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4326"]], PROJECTION["Transverse_Mercator"], PARAMETER["latitude_of_origin",49.5], PARAMETER["central_meridian",-2.41666666666667], PARAMETER["scale_factor",0.999997], PARAMETER["false_easting",47000], PARAMETER["false_northing",50000], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["ESRI","102070"]]
Definition: OGC Well Known Text 2 (2019)
PROJCRS["Guernsey_Grid", BASEGEOGCRS["WGS 84", ENSEMBLE["World Geodetic System 1984 ensemble", MEMBER["World Geodetic System 1984 (Transit)"], MEMBER["World Geodetic System 1984 (G730)"], MEMBER["World Geodetic System 1984 (G873)"], MEMBER["World Geodetic System 1984 (G1150)"], MEMBER["World Geodetic System 1984 (G1674)"], MEMBER["World Geodetic System 1984 (G1762)"], MEMBER["World Geodetic System 1984 (G2139)"], ELLIPSOID["WGS 84",6378137,298.257223563, LENGTHUNIT["metre",1]], ENSEMBLEACCURACY[2.0]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4326]], CONVERSION["Guernsey_Grid", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",49.5, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-2.41666666666667, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",0.999997, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",47000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",50000, 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["Not known."], AREA["Channel Islands - Guernsey, Alderney, Sark, Herm, Brecqhou, Jethou, Lihou - onshore and offshore."], BBOX[49.21,-3.06,49.94,-2.03]], ID["ESRI",102070]]
Definition: ESRI Well Known Text
PROJCS["Guernsey_Grid", GEOGCS["GCS_WGS_1984", DATUM["D_WGS_1984", SPHEROID["WGS_1984",6378137.0,298.257223563]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Transverse_Mercator"], PARAMETER["False_Easting",47000.0], PARAMETER["False_Northing",50000.0], PARAMETER["Central_Meridian",-2.41666666666667], PARAMETER["Scale_Factor",0.999997], PARAMETER["Latitude_Of_Origin",49.5], UNIT["Meter",1.0]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "Guernsey_Grid", "base_crs": { "name": "WGS 84", "datum_ensemble": { "name": "World Geodetic System 1984 ensemble", "members": [ { "name": "World Geodetic System 1984 (Transit)", "id": { "authority": "EPSG", "code": 1166 } }, { "name": "World Geodetic System 1984 (G730)", "id": { "authority": "EPSG", "code": 1152 } }, { "name": "World Geodetic System 1984 (G873)", "id": { "authority": "EPSG", "code": 1153 } }, { "name": "World Geodetic System 1984 (G1150)", "id": { "authority": "EPSG", "code": 1154 } }, { "name": "World Geodetic System 1984 (G1674)", "id": { "authority": "EPSG", "code": 1155 } }, { "name": "World Geodetic System 1984 (G1762)", "id": { "authority": "EPSG", "code": 1156 } }, { "name": "World Geodetic System 1984 (G2139)", "id": { "authority": "EPSG", "code": 1309 } } ], "ellipsoid": { "name": "WGS 84", "semi_major_axis": 6378137, "inverse_flattening": 298.257223563 }, "accuracy": "2.0", "id": { "authority": "EPSG", "code": 6326 } }, "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": 4326 } }, "conversion": { "name": "Guernsey_Grid", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 49.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -2.41666666666667, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999997, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 47000, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 50000, "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": "Not known.", "area": "Channel Islands - Guernsey, Alderney, Sark, Herm, Brecqhou, Jethou, Lihou - onshore and offshore.", "bbox": { "south_latitude": 49.21, "west_longitude": -3.06, "north_latitude": 49.94, "east_longitude": -2.03 }, "id": { "authority": "ESRI", "code": 102070 } }
Definition: GeoServer
102070=PROJCS["Guernsey_Grid",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",49.5],PARAMETER["central_meridian",-2.41666666666667],PARAMETER["scale_factor",0.999997],PARAMETER["false_easting",47000],PARAMETER["false_northing",50000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["ESRI","102070"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +lat_0=49.5 +lon_0=-2.41666666666667 +k=0.999997 +x_0=47000 +y_0=50000 +datum=WGS84 +units=m +no_defs +type=crs"> <Layer srs="+proj=tmerc +lat_0=49.5 +lon_0=-2.41666666666667 +k=0.999997 +x_0=47000 +y_0=50000 +datum=WGS84 +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 102070, 'ESRI', 102070, '+proj=tmerc +lat_0=49.5 +lon_0=-2.41666666666667 +k=0.999997 +x_0=47000 +y_0=50000 +datum=WGS84 +units=m +no_defs +type=crs', 'PROJCS["Guernsey_Grid",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",49.5],PARAMETER["central_meridian",-2.41666666666667],PARAMETER["scale_factor",0.999997],PARAMETER["false_easting",47000],PARAMETER["false_northing",50000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["ESRI","102070"]]');
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