EPSG:23031

ED50 / UTM zone 31N

MapTiler banner

Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        PROJCRS["ED50 / UTM zone 31N",
            BASEGEOGCRS["ED50",
                DATUM["European Datum 1950",
                    ELLIPSOID["International 1924",6378388,297,
                        LENGTHUNIT["metre",1]]],
                PRIMEM["Greenwich",0,
                    ANGLEUNIT["degree",0.0174532925199433]],
                ID["EPSG",4230]],
            CONVERSION["UTM zone 31N",
                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",500000,
                    LENGTHUNIT["metre",1],
                    ID["EPSG",8806]],
                PARAMETER["False northing",0,
                    LENGTHUNIT["metre",1],
                    ID["EPSG",8807]]],
            CS[Cartesian,2],
                AXIS["(E)",east,
                    ORDER[1],
                    LENGTHUNIT["metre",1]],
                AXIS["(N)",north,
                    ORDER[2],
                    LENGTHUNIT["metre",1]],
            USAGE[
                SCOPE["Engineering survey, topographic mapping."],
                AREA["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."],
                BBOX[38.56,0,82.45,6]],
            ID["EPSG",23031]]],
    TARGETCRS[
        GEOGCRS["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]],
            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["Spatial referencing."],
                AREA["Europe - onshore and offshore: Albania; Andorra; Austria; Belgium; Bosnia and Herzegovina; Bulgaria; Croatia; Czechia; Denmark; Estonia; Faroe Islands; Finland; France; Germany; Gibraltar; Greece; Hungary; Ireland; Italy; Kosovo; Latvia; Liechtenstein; Lithuania; Luxembourg; Malta; Moldova; Monaco; Montenegro; Netherlands; North Macedonia; Norway including Svalbard and Jan Mayen; Poland; Portugal - mainland; Romania; San Marino; Serbia; Slovakia; Slovenia; Spain - mainland and Balearic islands; Sweden; Switzerland; United Kingdom (UK) including Channel Islands and Isle of Man; Vatican City State."],
                BBOX[33.26,-16.1,84.73,38.01]],
            ID["EPSG",4258],
            REMARK["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."]]],
    ABRIDGEDTRANSFORMATION["ED50 to ETRS89 (12)",
        METHOD["NTv2",
            ID["EPSG",9615]],
        PARAMETERFILE["Latitude and longitude difference file","SPED2ETV2.gsb"],
        USAGE[
            SCOPE["Transformation of coordinates at 0.1m to 0.2m level of accuracy."],
            AREA["Spain - mainland, Balearic Islands and Ceuta - onshore."],
            BBOX[35.84,-9.37,43.82,4.39]],
        ID["EPSG",15932],
        REMARK["Replaces ED50 to ETRS89 (11) (code 15895) - see supersession record. May be taken as approximate transformation ED50 to WGS 84 - see code 15933."]]]

Definition: PROJ.4

+proj=utm +zone=31 +ellps=intl +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:23031","+proj=utm +zone=31 +ellps=intl +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "ProjectedCRS",
        "name": "ED50 / UTM zone 31N",
        "base_crs": {
            "type": "GeographicCRS",
            "name": "ED50",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "European Datum 1950",
                "ellipsoid": {
                    "name": "International 1924",
                    "semi_major_axis": 6378388,
                    "inverse_flattening": 297
                }
            },
            "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": 4230
            }
        },
        "conversion": {
            "name": "UTM zone 31N",
            "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": 500000,
                    "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": "Easting",
                    "abbreviation": "E",
                    "direction": "east",
                    "unit": "metre"
                },
                {
                    "name": "Northing",
                    "abbreviation": "N",
                    "direction": "north",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 23031
        }
    },
    "target_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."
    },
    "transformation": {
        "name": "ED50 to ETRS89 (12)",
        "method": {
            "name": "NTv2",
            "id": {
                "authority": "EPSG",
                "code": 9615
            }
        },
        "parameters": [
            {
                "name": "Latitude and longitude difference file",
                "value": "SPED2ETV2.gsb",
                "id": {
                    "authority": "EPSG",
                    "code": 8656
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 15932
        }
    }
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=utm"
	"zone=31"
	"ellps=intl"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=utm +zone=31 +ellps=intl +units=m +no_defs +type=crs">
	<Layer srs="+proj=utm +zone=31 +ellps=intl +units=m +no_defs +type=crs">
	</Layer>
</Map>