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Method: Longitude rotation
Remarks: Caused by redetermination of longitude of Tokyo datum origin in 1918. Korean 1985 is based on the 1918 determination.
Information source: Korean Association of Surveying and Mapping
Revision date: 2011-01-25
Unit: metre
Geodetic CRS: Tokyo 1892
Datum: Tokyo 1892
Ellipsoid: Bessel 1841
Prime meridian: Greenwich
Data source: EPSG
Information source: Clifford J. Mugnier; in Photogrammetric Engineering & Remote Sensing November 1999. http://www.asprs.org
Revision date: 2010-07-07
Scope: Cadastre, engineering survey, topographic mapping (large and medium scale).
Remarks: Sometimes incorrectly assumed to be Tokyo 1918 / Korea East Belt, a system that was never put into use. In South Korea, replaced by Korean 1985 / East Belt (CRS code 2096).
Coordinate system: Cartesian 2D CS. Axes: northing, easting (X,Y). Orientations: north, east. UoM: m.
&stroke=red&width=2&path=33.14,124.53|38.64,124.53|38.64,131.01|33.14,131.01|33.14,124.53)
Center coordinates
88884.89 266231.8
Projected bounds:
-217308.98 -39531.25
387498.93 580234.22
WGS84 bounds:
124.53 33.14
131.01 38.64
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["Tokyo 1892 / Korea East Belt", BASEGEOGCRS["Tokyo 1892", DATUM["Tokyo 1892", ELLIPSOID["Bessel 1841",6377397.155,299.1528128, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",5132]], CONVERSION["Korea East Belt", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",38, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",129, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",1, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",200000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",500000, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["northing (X)",north, ORDER[1], LENGTHUNIT["metre",1]], AXIS["easting (Y)",east, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Cadastre, engineering survey, topographic mapping (large and medium scale)."], AREA["Democratic People's Republic of Korea (North Korea) and Republic of Korea (South Korea) - onshore between 128°E and 130°E."], BBOX[34.49,128,43.01,130]], ID["EPSG",5171]]], TARGETCRS[ GEOGCRS["Korean 1985", DATUM["Korean Datum 1985", ELLIPSOID["Bessel 1841",6377397.155,299.1528128, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[ellipsoidal,2], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["degree",0.0174532925199433]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["degree",0.0174532925199433]], USAGE[ SCOPE["Geodesy."], AREA["Republic of Korea (South Korea) - onshore."], BBOX[33.14,124.53,38.64,131.01]], ID["EPSG",4162]]], ABRIDGEDTRANSFORMATION["Tokyo 1892 to Korean 1985 (1)", METHOD["Longitude rotation", ID["EPSG",9601]], PARAMETER["Longitude offset",10.405, ID["EPSG",8602]], USAGE[ SCOPE["Geodesy."], AREA["Republic of Korea (South Korea) - onshore."], BBOX[33.14,124.53,38.64,131.01]], ID["EPSG",5134], REMARK["Caused by redetermination of longitude of Tokyo datum origin in 1918. Korean 1985 is based on the 1918 determination."]]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "Tokyo 1892 / Korea East Belt", "base_crs": { "name": "Tokyo 1892", "datum": { "type": "GeodeticReferenceFrame", "name": "Tokyo 1892", "ellipsoid": { "name": "Bessel 1841", "semi_major_axis": 6377397.155, "inverse_flattening": 299.1528128 } }, "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": 5132 } }, "conversion": { "name": "Korea East Belt", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 38, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": 129, "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": 200000, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 500000, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Northing", "abbreviation": "X", "direction": "north", "unit": "metre" }, { "name": "Easting", "abbreviation": "Y", "direction": "east", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 5171 } }, "target_crs": { "type": "GeographicCRS", "name": "Korean 1985", "datum": { "type": "GeodeticReferenceFrame", "name": "Korean Datum 1985", "ellipsoid": { "name": "Bessel 1841", "semi_major_axis": 6377397.155, "inverse_flattening": 299.1528128 } }, "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": 4162 } }, "transformation": { "name": "Tokyo 1892 to Korean 1985 (1)", "method": { "name": "Longitude rotation", "id": { "authority": "EPSG", "code": 9601 } }, "parameters": [ { "name": "Longitude offset", "value": 10.405, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8602 } } ], "id": { "authority": "EPSG", "code": 5134 } } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +lat_0=38 +lon_0=129 +k=1 +x_0=200000 +y_0=500000 +ellps=bessel +units=m +no_defs +type=crs"> <Layer srs="+proj=tmerc +lat_0=38 +lon_0=129 +k=1 +x_0=200000 +y_0=500000 +ellps=bessel +units=m +no_defs +type=crs"> </Layer> </Map>
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