Unit: degree (supplier to define representation)
Geodetic CRS: TWD97
Datum: Taiwan Datum 1997
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: National Land Surveying and Mapping Center (NLSC), http://www.nlsc.gov.tw
Revision date: 2008-08-11
Center coordinates
118.97 22.16
Projected bounds:
114.32 17.36
123.61 26.96
WGS84 bounds:
114.32 17.36
123.61 26.96
Definition: ESRI WKT
GEOGCS["GCS_TWD_1997",DATUM["D_TWD_1997",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],VERTCS["D_TWD_1997",DATUM["D_TWD_1997",SPHEROID["GRS_1980",6378137.0,298.257222101]],PARAMETER["Vertical_Shift",0.0],PARAMETER["Direction",1.0],UNIT["Meter",1.0]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json", "type": "GeographicCRS", "name": "TWD97", "datum": { "type": "GeodeticReferenceFrame", "name": "Taiwan Datum 1997", "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" }, { "name": "Ellipsoidal height", "abbreviation": "h", "direction": "up", "unit": "metre" } ] }, "scope": "Geodesy.", "area": "Taiwan, Republic of China - onshore and offshore - Taiwan Island, Penghu (Pescadores) Islands.", "bbox": { "south_latitude": 17.36, "west_longitude": 114.32, "north_latitude": 26.96, "east_longitude": 123.61 }, "id": { "authority": "EPSG", "code": 3823 } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=longlat +ellps=GRS80 +no_defs +type=crs"> <Layer srs="+proj=longlat +ellps=GRS80 +no_defs +type=crs"> </Layer> </Map>
Definition: OGC WKT 2 (2019)
GEOGCRS["TWD97",DATUM["Taiwan Datum 1997",ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],CS[ellipsoidal,3],AXIS["geodetic latitude (Lat)",north,ORDER[1],ANGLEUNIT["degree",0.0174532925199433]],AXIS["geodetic longitude (Lon)",east,ORDER[2],ANGLEUNIT["degree",0.0174532925199433]],AXIS["ellipsoidal height (h)",up,ORDER[3],LENGTHUNIT["metre",1]],USAGE[SCOPE["Geodesy."],AREA["Taiwan, Republic of China - onshore and offshore - Taiwan Island, Penghu (Pescadores) Islands."],BBOX[17.36,114.32,26.96,123.61]],ID["EPSG",3823]]