EPSG:11109

ETRS89-PRT [1995] to ETRF97 (1)

Attributes

Geodetic CRS: ETRS89-PRT [1995]

Datum: ETRS89-PRT [1995]

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: IOGP

Revision date: 2025-10-17

Scope: Merging of spatial data referenced to different national realizations of ETRS89 at the sub-decimetre level of accuracy.

Remarks: Accuracy is approximately 1cm at the ETRS89-PRT [1995] anchor epoch of 1995.4, but deteriorates with time due to tectonic deformation and/or glacial isostatic adjustment.

Method: Geocentric translations (geocentric domain)

Area of use: Portugal - mainland ("continental") - onshore and offshore.

Description: (0,)

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Portugal - mainland ("continental") - onshore and offshore.

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Definition: OGC Well Known Text 2 (2019)

COORDINATEOPERATION["ETRS89-PRT [1995] to ETRF97 (1)",
    VERSION["IOGP-Prt 1995"],
    SOURCECRS[
        GEODCRS["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[Cartesian,3],
                AXIS["(X)",geocentricX,
                    ORDER[1],
                    LENGTHUNIT["metre",1]],
                AXIS["(Y)",geocentricY,
                    ORDER[2],
                    LENGTHUNIT["metre",1]],
                AXIS["(Z)",geocentricZ,
                    ORDER[3],
                    LENGTHUNIT["metre",1]],
            ID["EPSG",11106]]],
    TARGETCRS[
        GEODCRS["ETRF97",
            DYNAMIC[
                FRAMEEPOCH[1989]],
            DATUM["European Terrestrial Reference Frame 1997",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]]],
            PRIMEM["Greenwich",0,
                ANGLEUNIT["degree",0.0174532925199433]],
            CS[Cartesian,3],
                AXIS["(X)",geocentricX,
                    ORDER[1],
                    LENGTHUNIT["metre",1]],
                AXIS["(Y)",geocentricY,
                    ORDER[2],
                    LENGTHUNIT["metre",1]],
                AXIS["(Z)",geocentricZ,
                    ORDER[3],
                    LENGTHUNIT["metre",1]],
            ID["EPSG",7928]]],
    METHOD["Geocentric translations (geocentric domain)",
        ID["EPSG",1031]],
    PARAMETER["X-axis translation",0,
        LENGTHUNIT["metre",1],
        ID["EPSG",8605]],
    PARAMETER["Y-axis translation",0,
        LENGTHUNIT["metre",1],
        ID["EPSG",8606]],
    PARAMETER["Z-axis translation",0,
        LENGTHUNIT["metre",1],
        ID["EPSG",8607]],
    OPERATIONACCURACY[0.1],
    USAGE[
        SCOPE["Merging of spatial data referenced to different national realizations of ETRS89 at the sub-decimetre level of accuracy."],
        AREA["Portugal - mainland (""continental"") - onshore and offshore."],
        BBOX[34.91,-13.87,42.16,-6.19]],
    ID["EPSG",11109],
    REMARK["Accuracy is approximately 1cm at the ETRS89-PRT [1995] anchor epoch of 1995.4, but deteriorates with time due to tectonic deformation and/or glacial isostatic adjustment."]]

Definition: PROJ.4

+proj=noop

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:11109","+proj=noop");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Transformation",
    "name": "ETRS89-PRT [1995] to ETRF97 (1)",
    "source_crs": {
        "type": "GeodeticCRS",
        "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": "Cartesian",
            "axis": [
                {
                    "name": "Geocentric X",
                    "abbreviation": "X",
                    "direction": "geocentricX",
                    "unit": "metre"
                },
                {
                    "name": "Geocentric Y",
                    "abbreviation": "Y",
                    "direction": "geocentricY",
                    "unit": "metre"
                },
                {
                    "name": "Geocentric Z",
                    "abbreviation": "Z",
                    "direction": "geocentricZ",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 11106
        },
        "remarks": "National realization of ETRS89 in continental Portugal."
    },
    "target_crs": {
        "type": "GeodeticCRS",
        "name": "ETRF97",
        "datum": {
            "type": "DynamicGeodeticReferenceFrame",
            "name": "European Terrestrial Reference Frame 1997",
            "frame_reference_epoch": 1989,
            "ellipsoid": {
                "name": "GRS 1980",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257222101
            }
        },
        "coordinate_system": {
            "subtype": "Cartesian",
            "axis": [
                {
                    "name": "Geocentric X",
                    "abbreviation": "X",
                    "direction": "geocentricX",
                    "unit": "metre"
                },
                {
                    "name": "Geocentric Y",
                    "abbreviation": "Y",
                    "direction": "geocentricY",
                    "unit": "metre"
                },
                {
                    "name": "Geocentric Z",
                    "abbreviation": "Z",
                    "direction": "geocentricZ",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 7928
        },
        "remarks": "Replaces ETRF96 (code 7926). Replaced by ETRF2000 (code 7930)."
    },
    "method": {
        "name": "Geocentric translations (geocentric domain)",
        "id": {
            "authority": "EPSG",
            "code": 1031
        }
    },
    "parameters": [
        {
            "name": "X-axis translation",
            "value": 0,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8605
            }
        },
        {
            "name": "Y-axis translation",
            "value": 0,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8606
            }
        },
        {
            "name": "Z-axis translation",
            "value": 0,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8607
            }
        }
    ],
    "accuracy": "0.1",
    "scope": "Merging of spatial data referenced to different national realizations of ETRS89 at the sub-decimetre level of accuracy.",
    "area": "Portugal - mainland (\"continental\") - onshore and offshore.",
    "bbox": {
        "south_latitude": 34.91,
        "west_longitude": -13.87,
        "north_latitude": 42.16,
        "east_longitude": -6.19
    },
    "id": {
        "authority": "EPSG",
        "code": 11109
    },
    "remarks": "Accuracy is approximately 1cm at the ETRS89-PRT [1995] anchor epoch of 1995.4, but deteriorates with time due to tectonic deformation and/or glacial isostatic adjustment."
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=noop"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=noop">
	<Layer srs="+proj=noop">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 11109, 'EPSG', 11109, '+proj=noop', 'None');