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Name: ETRS89 to Ostenfeld-IRF (1)
Method: NTv2
Grid Files: os_2022.gsb
Remarks: In conjunction with the Ostenfeld-reconstruction map projection (code 10269) applied to OS-IRF (code 10268), enables transformation of coordinates between the historic Ostenfeld CRS and ETRS89. File is also available in GeoTIFF format (os_2022.tif).
Information source: The Danish Agency for Data Supply and Infrastructure, https://sdfi.dk
Revision date: 2023-05-10
Unit: metre
Geodetic CRS: ETRS89
Datum: European Terrestrial Reference System 1989 ensemble
Data source: EPSG
Information source: Landesamt für innere Verwaltung Mecklenburg-Vorpommern.
Revision date: 2024-01-04
Scope: Topographic mapping.
Remarks: Variant used in Germany of ETRS89 / UTM zone 31N (code 25831) in which axis order is reversed and easting has zone prefix. Does not distinguish between different realizations of ETRS89. For cadastre and engineering survey use DREF91/2016 CRS code 10286.
Area of use: Germany - onshore and offshore west of 6°E.
Coordinate system: Cartesian 2D CS. Axes: northing, easting (N,E). Orientations: north, east. UoM: m.
&stroke=red&width=2&path=54.8,8.37|55.47,8.37|55.47,10.16|54.8,10.16|54.8,8.37)
Center coordinates
31899139.55 6127748.81
Projected bounds:
31839306.05 6085765.11
31959886.28 6170422.8
WGS84 bounds:
8.37 54.8
10.16 55.47
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["ETRS89 / UTM zone 31N (N-zE)", BASEGEOGCRS["ETRS89", ENSEMBLE["European Terrestrial Reference System 1989 ensemble", MEMBER["European Terrestrial Reference Frame 1989"], MEMBER["European Terrestrial Reference Frame 1990"], MEMBER["European Terrestrial Reference Frame 1991"], MEMBER["European Terrestrial Reference Frame 1992"], MEMBER["European Terrestrial Reference Frame 1993"], MEMBER["European Terrestrial Reference Frame 1994"], MEMBER["European Terrestrial Reference Frame 1996"], MEMBER["European Terrestrial Reference Frame 1997"], MEMBER["European Terrestrial Reference Frame 2000"], MEMBER["European Terrestrial Reference Frame 2005"], MEMBER["European Terrestrial Reference Frame 2014"], MEMBER["European Terrestrial Reference Frame 2020"], MEMBER["ETRS89-DNK"], MEMBER["Estonia 1997"], MEMBER["Albanian Geodetic Reference Frame 2010"], MEMBER["ETRS89-ALB [CORS]"], MEMBER["ETRS89-AUT [2002]"], MEMBER["Belgian Reference Frame 2002"], MEMBER["Belgian Reference Frame 2011"], MEMBER["BH_ETRS89"], MEMBER["Bulgaria Geodetic System 2005"], MEMBER["Croatian Terrestrial Reference System 1996"], MEMBER["AGRS2010 (ETRF2000)"], MEMBER["CROPOS"], MEMBER["ETRF2000 Poland"], MEMBER["ETRS89/DREF91 Realization 2016"], MEMBER["ETRS89/DREF91 Realization 2025"], MEMBER["ETRS89-CZE [2007]"], MEMBER["ETRS89-ESP [REGENTE]"], MEMBER["ETRS89-ESP [ERGNSS]"], MEMBER["ETRS89-FRO [2008]"], MEMBER["ETRS89-GRC [HTRS07]"], MEMBER["ETRS89-HUN [ETRF2000]"], MEMBER["ETRS89-IRE [ETRF2000]"], MEMBER["ETRS89-MKD [EUREF-MAK2010]"], MEMBER["ETRS89-NOR [EUREF89]"], MEMBER["ETRS89-PRT [1995]"], MEMBER["ETRS89-ROU [ETRF2000]"], MEMBER["ETRS89-SVK [SKTRF09]"], MEMBER["ETRS89-SVK [SKTRF2022]"], MEMBER["EUREF-FIN"], MEMBER["Istituto Geografico Militaire 1995"], MEMBER["Kosovo Reference System 2001"], MEMBER["Latvian geodetic coordinate system 1992"], MEMBER["Latvian coordinate system 2020"], MEMBER["Lithuania 1994 (ETRS89)"], MEMBER["MOLDREF99"], MEMBER["OSNet v2009"], MEMBER["Reseau Geodesique Francais 1993 v1"], MEMBER["Reseau Geodesique Francais 1993 v2"], MEMBER["Reseau Geodesique Francais 1993 v2b"], MEMBER["Rete Dinamica Nazionale 2008"], MEMBER["Serbian Reference Network 1998"], MEMBER["Serbian Spatial Reference System 2000"], MEMBER["Slovenia Geodetic Datum 1996"], MEMBER["SWEREF 99"], MEMBER["Swiss Terrestrial Reference Frame 1995"], ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]], ENSEMBLEACCURACY[0.1]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4258]], CONVERSION["UTM zone 31N with prefix", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",0, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",3, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",0.9996, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",31500000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",0, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["northing (N)",north, ORDER[1], LENGTHUNIT["metre",1]], AXIS["easting (E)",east, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Topographic mapping."], AREA["Germany - onshore and offshore west of 6°E."], BBOX[50.97,3.34,55.92,6.01]], ID["EPSG",5651]]], TARGETCRS[ GEOGCRS["Ostenfeld-IRF", DATUM["Ostenfeld Intermediate Datum", 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["Intermediate stage in transformations - not used otherwise."], AREA["Denmark - onshore northern Schleswig and surrounding islands (i.e. Jutland south of the pre-1920 border near the Kongea river)."], BBOX[54.8,8.37,55.47,10.16]], ID["EPSG",10268], REMARK["Artificial CRS created in 2022 to assist the transformation of coordinates between the historic Ostenfeld CRS and ETRS89 through transformation ETRS89 to Ostenfeld-IRF (1) (code 10271) used with the Ostenfeld-reconstruction map projection (code 10269)."]]], ABRIDGEDTRANSFORMATION["ETRS89 to Ostenfeld-IRF (1)", METHOD["NTv2", ID["EPSG",9615]], PARAMETERFILE["Latitude and longitude difference file","os_2022.gsb"], USAGE[ SCOPE["Cadastre."], AREA["Denmark - onshore northern Schleswig and surrounding islands (i.e. Jutland south of the pre-1920 border near the Kongea river)."], BBOX[54.8,8.37,55.47,10.16]], ID["EPSG",10271], REMARK["In conjunction with the Ostenfeld-reconstruction map projection (code 10269) applied to OS-IRF (code 10268), enables transformation of coordinates between the historic Ostenfeld CRS and ETRS89. File is also available in GeoTIFF format (os_2022.tif)."]]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "ETRS89 / UTM zone 31N (N-zE)", "base_crs": { "type": "GeographicCRS", "name": "ETRS89", "datum_ensemble": { "name": "European Terrestrial Reference System 1989 ensemble", "members": [ { "name": "European Terrestrial Reference Frame 1989", "id": { "authority": "EPSG", "code": 1178 } }, { "name": "European Terrestrial Reference Frame 1990", "id": { "authority": "EPSG", "code": 1179 } }, { "name": "European Terrestrial Reference Frame 1991", "id": { "authority": "EPSG", "code": 1180 } }, { "name": "European Terrestrial Reference Frame 1992", "id": { "authority": "EPSG", "code": 1181 } }, { "name": "European Terrestrial Reference Frame 1993", "id": { "authority": "EPSG", "code": 1182 } }, { "name": "European Terrestrial Reference Frame 1994", "id": { "authority": "EPSG", "code": 1183 } }, { "name": "European Terrestrial Reference Frame 1996", "id": { "authority": "EPSG", "code": 1184 } }, { "name": "European Terrestrial Reference Frame 1997", "id": { "authority": "EPSG", "code": 1185 } }, { "name": "European Terrestrial Reference Frame 2000", "id": { "authority": "EPSG", "code": 1186 } }, { "name": "European Terrestrial Reference Frame 2005", "id": { "authority": "EPSG", "code": 1204 } }, { "name": "European Terrestrial Reference Frame 2014", "id": { "authority": "EPSG", "code": 1206 } }, { "name": "European Terrestrial Reference Frame 2020", "id": { "authority": "EPSG", "code": 1382 } }, { "name": "ETRS89-DNK", "id": { "authority": "EPSG", "code": 1412 } }, { "name": "Estonia 1997", "id": { "authority": "EPSG", "code": 6180 } }, { "name": "Albanian Geodetic Reference Frame 2010", "id": { "authority": "EPSG", "code": 1429 } }, { "name": "ETRS89-ALB [CORS]", "id": { "authority": "EPSG", "code": 1430 } }, { "name": "ETRS89-AUT [2002]", "id": { "authority": "EPSG", "code": 1431 } }, { "name": "Belgian Reference Frame 2002", "id": { "authority": "EPSG", "code": 1432 } }, { "name": "Belgian Reference Frame 2011", "id": { "authority": "EPSG", "code": 1447 } }, { "name": "BH_ETRS89", "id": { "authority": "EPSG", "code": 1358 } }, { "name": "Bulgaria Geodetic System 2005", "id": { "authority": "EPSG", "code": 1167 } }, { "name": "Croatian Terrestrial Reference System 1996", "id": { "authority": "EPSG", "code": 6761 } }, { "name": "AGRS2010 (ETRF2000)", "id": { "authority": "EPSG", "code": 1427 } }, { "name": "CROPOS", "id": { "authority": "EPSG", "code": 1445 } }, { "name": "ETRF2000 Poland", "id": { "authority": "EPSG", "code": 1305 } }, { "name": "ETRS89/DREF91 Realization 2016", "id": { "authority": "EPSG", "code": 1353 } }, { "name": "ETRS89/DREF91 Realization 2025", "id": { "authority": "EPSG", "code": 1446 } }, { "name": "ETRS89-CZE [2007]", "id": { "authority": "EPSG", "code": 1433 } }, { "name": "ETRS89-ESP [REGENTE]", "id": { "authority": "EPSG", "code": 1441 } }, { "name": "ETRS89-ESP [ERGNSS]", "id": { "authority": "EPSG", "code": 1442 } }, { "name": "ETRS89-FRO [2008]", "id": { "authority": "EPSG", "code": 1436 } }, { "name": "ETRS89-GRC [HTRS07]", "id": { "authority": "EPSG", "code": 1437 } }, { "name": "ETRS89-HUN [ETRF2000]", "id": { "authority": "EPSG", "code": 1444 } }, { "name": "ETRS89-IRE [ETRF2000]", "id": { "authority": "EPSG", "code": 6173 } }, { "name": "ETRS89-MKD [EUREF-MAK2010]", "id": { "authority": "EPSG", "code": 1438 } }, { "name": "ETRS89-NOR [EUREF89]", "id": { "authority": "EPSG", "code": 1407 } }, { "name": "ETRS89-PRT [1995]", "id": { "authority": "EPSG", "code": 1439 } }, { "name": "ETRS89-ROU [ETRF2000]", "id": { "authority": "EPSG", "code": 1440 } }, { "name": "ETRS89-SVK [SKTRF09]", "id": { "authority": "EPSG", "code": 1434 } }, { "name": "ETRS89-SVK [SKTRF2022]", "id": { "authority": "EPSG", "code": 1435 } }, { "name": "EUREF-FIN", "id": { "authority": "EPSG", "code": 1391 } }, { "name": "Istituto Geografico Militaire 1995", "id": { "authority": "EPSG", "code": 6670 } }, { "name": "Kosovo Reference System 2001", "id": { "authority": "EPSG", "code": 1251 } }, { "name": "Latvian geodetic coordinate system 1992", "id": { "authority": "EPSG", "code": 6661 } }, { "name": "Latvian coordinate system 2020", "id": { "authority": "EPSG", "code": 1356 } }, { "name": "Lithuania 1994 (ETRS89)", "id": { "authority": "EPSG", "code": 6126 } }, { "name": "MOLDREF99", "id": { "authority": "EPSG", "code": 1032 } }, { "name": "OSNet v2009", "id": { "authority": "EPSG", "code": 1425 } }, { "name": "Reseau Geodesique Francais 1993 v1", "id": { "authority": "EPSG", "code": 6171 } }, { "name": "Reseau Geodesique Francais 1993 v2", "id": { "authority": "EPSG", "code": 1312 } }, { "name": "Reseau Geodesique Francais 1993 v2b", "id": { "authority": "EPSG", "code": 1313 } }, { "name": "Rete Dinamica Nazionale 2008", "id": { "authority": "EPSG", "code": 1132 } }, { "name": "Serbian Reference Network 1998", "id": { "authority": "EPSG", "code": 1034 } }, { "name": "Serbian Spatial Reference System 2000", "id": { "authority": "EPSG", "code": 1214 } }, { "name": "Slovenia Geodetic Datum 1996", "id": { "authority": "EPSG", "code": 6765 } }, { "name": "SWEREF 99", "id": { "authority": "EPSG", "code": 6619 } }, { "name": "Swiss Terrestrial Reference Frame 1995", "id": { "authority": "EPSG", "code": 1449 } } ], "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 }, "accuracy": "0.1", "id": { "authority": "EPSG", "code": 6258 } }, "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": 4258 }, "remarks": "Has been realized through ETRF89, ETRF90, ETRF91, ETRF92, ETRF93, ETRF94, ETRF96, ETRF97, ETRF2000, ETRF2005 and ETRF2014. This 'ensemble' covers any or all of these realizations without distinction." }, "conversion": { "name": "UTM zone 31N with prefix", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 0, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": 3, "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": 31500000, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Northing", "abbreviation": "N", "direction": "north", "unit": "metre" }, { "name": "Easting", "abbreviation": "E", "direction": "east", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 5651 } }, "target_crs": { "type": "GeographicCRS", "name": "Ostenfeld-IRF", "datum": { "type": "GeodeticReferenceFrame", "name": "Ostenfeld Intermediate Datum", "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": 10268 }, "remarks": "Artificial CRS created in 2022 to assist the transformation of coordinates between the historic Ostenfeld CRS and ETRS89 through transformation ETRS89 to Ostenfeld-IRF (1) (code 10271) used with the Ostenfeld-reconstruction map projection (code 10269)." }, "transformation": { "name": "ETRS89 to Ostenfeld-IRF (1)", "method": { "name": "NTv2", "id": { "authority": "EPSG", "code": 9615 } }, "parameters": [ { "name": "Latitude and longitude difference file", "value": "os_2022.gsb", "id": { "authority": "EPSG", "code": 8656 } } ], "id": { "authority": "EPSG", "code": 10271 } } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +lat_0=0 +lon_0=3 +k=0.9996 +x_0=31500000 +y_0=0 +ellps=GRS80 +units=m +no_defs +type=crs"> <Layer srs="+proj=tmerc +lat_0=0 +lon_0=3 +k=0.9996 +x_0=31500000 +y_0=0 +ellps=GRS80 +units=m +no_defs +type=crs"> </Layer> </Map>
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