EPSG:5178

Korean 1985 / Unified CS

Transform Get position on a map

Available transformations
to EPSG:4326
EPSG:4326 - WGS 84

  • Republic of Korea (South Korea) - onshore. , accuracy 1.0 m, code 5191 (default) [7]

Selected transformation

Method: Molodensky-Badekas (CF geog2D domain)

Remarks: Parameter values from Korean 1985 to Korea 2000 (1) (code 5189). Assumes Korea 2000 and WGS 84 can be considered the same to within the accuracy of the transformation.

Information source: OGP

Revision date: 2020-03-14

Attributes

Unit: metre

Geodetic CRS: Korean 1985

Datum: Korean Datum 1985

Ellipsoid: Bessel 1841

Prime meridian: Greenwich

Data source: EPSG

Information source: National Geographic Information Institute (NGII).

Revision date: 2011-01-25

Scope: Topographic mapping (small scale).

Remarks: Introduced in 2004. From 2010 replaced by Korea 2000 / Unified CS (CRS code 5179).

Area of use: Republic of Korea (South Korea) - onshore.

Coordinate system: Cartesian 2D CS. Axes: northing, easting (X,Y). Orientations: north, east. UoM: m.

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SimpleMap

Center coordinates
1024566.55 1765644.13

Projected bounds:
723134.45 1460667.18
1327650.73 2076538.18

WGS84 bounds:
124.53 33.14
131.01 38.64

Republic of Korea (South Korea) - onshore.
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Definition: OGC Well Known Text

PROJCS["Korean 1985 / Unified CS",
    GEOGCS["Korean 1985",
        DATUM["Korean_Datum_1985",
            SPHEROID["Bessel 1841",6377397.155,299.1528128],
            TOWGS84[-145.907,505.034,685.756,-1.162,2.347,1.592,6.342]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4162"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",38],
    PARAMETER["central_meridian",127.5],
    PARAMETER["scale_factor",0.9996],
    PARAMETER["false_easting",1000000],
    PARAMETER["false_northing",2000000],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AUTHORITY["EPSG","5178"]]

Definition: OGC Well Known Text 2 (2019)

PROJCRS["Korean 1985 / Unified CS",
    BASEGEOGCRS["Korean 1985",
        DATUM["Korean Datum 1985",
            ELLIPSOID["Bessel 1841",6377397.155,299.1528128,
                LENGTHUNIT["metre",1]]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        ID["EPSG",4162]],
    CONVERSION["Korea Unified 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",127.5,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8802]],
        PARAMETER["Scale factor at natural origin",0.9996,
            SCALEUNIT["unity",1],
            ID["EPSG",8805]],
        PARAMETER["False easting",1000000,
            LENGTHUNIT["metre",1],
            ID["EPSG",8806]],
        PARAMETER["False northing",2000000,
            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["Topographic mapping (small scale)."],
        AREA["Republic of Korea (South Korea) - onshore."],
        BBOX[33.14,124.53,38.64,131.01]],
    ID["EPSG",5178]]

Definition: ESRI Well Known Text

PROJCS["Korean_1985_Korea_Unified_Coordinate_System",
    GEOGCS["GCS_Korean_Datum_1985",
        DATUM["D_Korean_Datum_1985",
            SPHEROID["Bessel_1841",6377397.155,299.1528128]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["False_Easting",1000000.0],
    PARAMETER["False_Northing",2000000.0],
    PARAMETER["Central_Meridian",127.5],
    PARAMETER["Scale_Factor",0.9996],
    PARAMETER["Latitude_Of_Origin",38.0],
    UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=tmerc +lat_0=38 +lon_0=127.5 +k=0.9996 +x_0=1000000 +y_0=2000000 +ellps=bessel +towgs84=-145.907,505.034,685.756,-1.162,2.347,1.592,6.342 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:5178","+proj=tmerc +lat_0=38 +lon_0=127.5 +k=0.9996 +x_0=1000000 +y_0=2000000 +ellps=bessel +towgs84=-145.907,505.034,685.756,-1.162,2.347,1.592,6.342 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json",
    "type": "ProjectedCRS",
    "name": "Korean 1985 / Unified CS",
    "base_crs": {
        "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
        }
    },
    "conversion": {
        "name": "Korea Unified 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": 127.5,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8802
                }
            },
            {
                "name": "Scale factor at natural origin",
                "value": 0.9996,
                "unit": "unity",
                "id": {
                    "authority": "EPSG",
                    "code": 8805
                }
            },
            {
                "name": "False easting",
                "value": 1000000,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8806
                }
            },
            {
                "name": "False northing",
                "value": 2000000,
                "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"
            }
        ]
    },
    "scope": "Topographic mapping (small scale).",
    "area": "Republic of Korea (South Korea) - onshore.",
    "bbox": {
        "south_latitude": 33.14,
        "west_longitude": 124.53,
        "north_latitude": 38.64,
        "east_longitude": 131.01
    },
    "id": {
        "authority": "EPSG",
        "code": 5178
    }
}

Definition: GeoServer

5178=PROJCS["Korean 1985 / Unified CS",GEOGCS["Korean 1985",DATUM["Korean_Datum_1985",SPHEROID["Bessel 1841",6377397.155,299.1528128],TOWGS84[-145.907,505.034,685.756,-1.162,2.347,1.592,6.342]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4162"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",38],PARAMETER["central_meridian",127.5],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",1000000],PARAMETER["false_northing",2000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","5178"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=38"
	"lon_0=127.5"
	"k=0.9996"
	"x_0=1000000"
	"y_0=2000000"
	"ellps=bessel"
	"towgs84=-145.907,505.034,685.756,-1.162,2.347,1.592,6.342"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=tmerc +lat_0=38 +lon_0=127.5 +k=0.9996 +x_0=1000000 +y_0=2000000 +ellps=bessel +towgs84=-145.907,505.034,685.756,-1.162,2.347,1.592,6.342 +units=m +no_defs +type=crs">
	<Layer srs="+proj=tmerc +lat_0=38 +lon_0=127.5 +k=0.9996 +x_0=1000000 +y_0=2000000 +ellps=bessel +towgs84=-145.907,505.034,685.756,-1.162,2.347,1.592,6.342 +units=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 5178, 'EPSG', 5178, '+proj=tmerc +lat_0=38 +lon_0=127.5 +k=0.9996 +x_0=1000000 +y_0=2000000 +ellps=bessel +towgs84=-145.907,505.034,685.756,-1.162,2.347,1.592,6.342 +units=m +no_defs +type=crs', 'PROJCS["Korean 1985 / Unified CS",GEOGCS["Korean 1985",DATUM["Korean_Datum_1985",SPHEROID["Bessel 1841",6377397.155,299.1528128],TOWGS84[-145.907,505.034,685.756,-1.162,2.347,1.592,6.342]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4162"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",38],PARAMETER["central_meridian",127.5],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",1000000],PARAMETER["false_northing",2000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","5178"]]');