EPSG:4207

Lisbon

Transform Get position on a map

Available transformations
to EPSG:11108
EPSG:11108 - ETRS89-PRT [1995]

Selected transformation

Name: Lisbon to ETRS89-PRT [1995] (4)

Method: NTv2

Grid Files: DLx_ETRS89_geo.gsb

Remarks: Derived from 1129 common stations in the national geodetic network. Residuals at 130 further test points average 0.09m, maximum 0.30m.

Information source: Instituto Geografico Portugues; http://www.igeo.pt

Revision date: 2025-10-17

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: Lisbon

Datum: Lisbon 1937

Ellipsoid: International 1924

Prime meridian: Greenwich

Data source: EPSG

Information source: Geodetic Services Directorate, Instituto Geografico e Cadastral, Lisbon; http://www.igeo.pt/

Revision date: 2004-01-06

Scope: Geodesy.

Remarks: Replaces Lisbon 1890 system which used Bessel 1841 ellipsoid (code 4666). Replaced by Datum 73 (code 4274).

Area of use: Portugal - mainland - onshore.

Coordinate system: Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: degree

Covered area powered by MapTiler MapTiler logo
SimpleMap

Center coordinates
-7.87 39.55

WGS84 bounds:
-9.56 36.95
-6.19 42.16

Portugal - mainland - onshore.
MapTiler banner

Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        GEOGCRS["Lisbon",
            DATUM["Lisbon 1937",
                ELLIPSOID["International 1924",6378388,297,
                    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["Geodesy."],
                AREA["Portugal - mainland - onshore."],
                BBOX[36.95,-9.56,42.16,-6.19]],
            ID["EPSG",4207],
            REMARK["Replaces Lisbon 1890 system which used Bessel 1841 ellipsoid (code 4666). Replaced by Datum 73 (code 4274)."]]],
    TARGETCRS[
        GEOGCRS["ETRS89-PRT [1995]",
            DATUM["ETRS89-PRT [1995]",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]],
                ANCHOREPOCH[1995.4]],
            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["Horizontal component of 3D system."],
                AREA["Portugal - mainland (""continental"") - onshore and offshore."],
                BBOX[34.91,-13.87,42.16,-6.19]],
            ID["EPSG",11108],
            REMARK["Horizontal component of national realization of ETRS89 in continental Portugal."]]],
    ABRIDGEDTRANSFORMATION["Lisbon to ETRS89-PRT [1995] (4)",
        METHOD["NTv2",
            ID["EPSG",9615]],
        PARAMETERFILE["Latitude and longitude difference file","DLx_ETRS89_geo.gsb"],
        USAGE[
            SCOPE["Transformation of coordinates at 0.1m level of accuracy."],
            AREA["Portugal - mainland - onshore."],
            BBOX[36.95,-9.56,42.16,-6.19]],
        ID["EPSG",6188],
        REMARK["Derived from 1129 common stations in the national geodetic network. Residuals at 130 further test points average 0.09m, maximum 0.30m."]]]

Definition: PROJ.4

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

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:4207","+proj=longlat +ellps=intl +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "GeographicCRS",
        "name": "Lisbon",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Lisbon 1937",
            "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": 4207
        },
        "remarks": "Replaces Lisbon 1890 system which used Bessel 1841 ellipsoid (code 4666). Replaced by Datum 73 (code 4274)."
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "ETRS89-PRT [1995]",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "ETRS89-PRT [1995]",
            "anchor_epoch": 1995.4,
            "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"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 11108
        },
        "remarks": "Horizontal component of national realization of ETRS89 in continental Portugal."
    },
    "transformation": {
        "name": "Lisbon to ETRS89-PRT [1995] (4)",
        "method": {
            "name": "NTv2",
            "id": {
                "authority": "EPSG",
                "code": 9615
            }
        },
        "parameters": [
            {
                "name": "Latitude and longitude difference file",
                "value": "DLx_ETRS89_geo.gsb",
                "id": {
                    "authority": "EPSG",
                    "code": 8656
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 6188
        }
    }
}

Definition: MapServer - MAPfile

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

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=intl +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=intl +no_defs +type=crs">
	</Layer>
</Map>