ETRS89

Definition: OGC Well Known Text 2 (2019)

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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"],
        ELLIPSOID["GRS 1980",6378137,298.257222101,
            LENGTHUNIT["metre",1]],
        ENSEMBLEACCURACY[0.1]],
    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["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",4937]]

Definition: ESRI Well Known Text

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GEOGCS["ETRS_1989_3D",
    DATUM["D_ETRS_1989",
        SPHEROID["GRS_1980",6378137.0,298.257222101]],
    PRIMEM["Greenwich",0.0],
    UNIT["Degree",0.0174532925199433],
    LINUNIT["Meter",1.0]]

Definition: PROJ.4

+proj=longlat +ellps=GRS80 +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:4937","+proj=longlat +ellps=GRS80 +no_defs +type=crs");

Definition: JSON

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{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "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
                }
            }
        ],
        "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"
            },
            {
                "name": "Ellipsoidal height",
                "abbreviation": "h",
                "direction": "up",
                "unit": "metre"
            }
        ]
    },
    "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": {
        "south_latitude": 33.26,
        "west_longitude": -16.1,
        "north_latitude": 84.73,
        "east_longitude": 38.01
    },
    "id": {
        "authority": "EPSG",
        "code": 4937
    }
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=GRS80"
	"no_defs"
	"type=crs"
END

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>

EPSG:4937

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