EPSG:23031 ED50 / UTM zone 31N
Projected system (Transverse Mercator) in use: Europe - 0°E to 6°E and ED50 by country. The full definition below, and conversion in one click.
| Code | EPSG:23031 |
|---|---|
| Name | ED50 / UTM zone 31N |
| Type | Projected system — Transverse Mercator |
| Area of use |
Europe - 0°E to 6°E and ED50 by country Europe - between 0°E and 6°E - Andorra; Denmark (North Sea); France - offshore; Germany - offshore; Netherlands - offshore; Norway including Svalbard - onshore and offshore; Spain - onshore (mainland and Balearic Islands); United Kingdom - offshore UKCS. |
| Bounds | W 0,00° · S 38,56° · E 6,00° · N 82,45° |
| Also covers | Denmark, France, Germany, Netherlands, Svalbard & Jan Mayen, Norway, Spain, United Kingdom |
| Datum | European Datum 1950 |
| Ellipsoid | International 1924 a = 6378388 m · 1/f = 297 |
| Base geographic system | EPSG:4230 — ED50 |
| Unit | metre (E east, N north) |
| Transformation to WGS 84 | ED50 to WGS 84 (1) (EPSG:1133) — accuracy 10 m |
| Scope | Engineering survey, topographic mapping. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 0 | degree |
| Longitude of natural origin | 3 | degree |
| Scale factor at natural origin | 0.9996 | unity |
| False easting | 500000 | metre |
| False northing | 0 | metre |
proj4 definition
+proj=utm +zone=31 +ellps=intl +units=m +towgs84=-87,-98,-121 +no_defsPaste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:23031.
WKT (ESRI format, the .prj content)
PROJCS["ED_1950_UTM_Zone_31N",GEOGCS["GCS_European_1950",DATUM["D_European_1950",SPHEROID["International_1924",6378388.0,297.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",3.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]Other systems — Denmark
- EPSG:4095ETRS89 / DKTM3
- EPSG:4096ETRS89 / DKTM4
- EPSG:5593FEH2010
- EPSG:5596FEH2010 / Fehmarnbelt TM
- EPSG:10158S34J-IRF
- EPSG:10160S34J reconstruction east-orientated
- EPSG:10249S34S-IRF
- EPSG:10250S34S reconstruction east-orientated
- EPSG:10252S45B-IRF
- EPSG:10254S45B reconstruction east-orientated
- EPSG:10256GS-IRF
- EPSG:10258GS reconstruction east-orientated
- EPSG:10260GSB-IRF
- EPSG:10262GSB reconstruction east-orientated
- EPSG:10265KK-IRF
- EPSG:10266KK reconstruction east-orientated
- EPSG:10268Ostenfeld-IRF
- EPSG:10270Ostenfeld reconstruction
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.