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Geodetic CRS: ETRS89
Datum: European Terrestrial Reference System 1989 ensemble
Data source: EPSG
Information source: United Kingdom Hydrographic Office (UKHO), VORF User Guide https://datahub.admiralty.co.uk/
Revision date: 2022-11-29
Scope: Derivation of depths from GNSS observations.
Remarks: For reversible alternative to this transformation see ETRS89 to ETRS89 + MSL UK & Ireland VORF08 depth (1) (code 10152).
Method: Geographic3D to Depth (txt)
Area of use: Ireland and United Kingdom (UK) (including Isle of Man and Channel Islands) - inshore, nearshore and offshore.
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["ETRS89 to MSL UK & Ireland VORF08 depth (1)", VERSION["UKHO-VORF08"], SOURCECRS[ 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"], 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]], ID["EPSG",4937]]], TARGETCRS[ VERTCRS["MSL UK & Ireland VORF08 depth", VDATUM["Mean Sea Level UK & Ireland VORF08"], CS[vertical,1], AXIS["depth (D)",down, LENGTHUNIT["metre",1]], ID["EPSG",10150]]], METHOD["Geographic3D to Depth (txt)", ID["EPSG",1116]], PARAMETERFILE["Geoid (height correction) model file","VORF-UK08_ETRF_to_MSL.vrf"], OPERATIONACCURACY[0.3], USAGE[ SCOPE["Derivation of depths from GNSS observations."], AREA["Ireland and United Kingdom (UK) (including Isle of Man and Channel Islands) - inshore, nearshore and offshore."], BBOX[47.42,-16.1,63.89,3.4]], ID["EPSG",10154], REMARK["For reversible alternative to this transformation see ETRS89 to ETRS89 + MSL UK & Ireland VORF08 depth (1) (code 10152)."]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Transformation", "name": "ETRS89 to MSL UK & Ireland VORF08 depth (1)", "source_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 } } ], "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" } ] }, "id": { "authority": "EPSG", "code": 4937 } }, "target_crs": { "type": "VerticalCRS", "name": "MSL UK & Ireland VORF08 depth", "datum": { "type": "VerticalReferenceFrame", "name": "Mean Sea Level UK & Ireland VORF08" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Depth", "abbreviation": "D", "direction": "down", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 10150 } }, "method": { "name": "Geographic3D to Depth (txt)", "id": { "authority": "EPSG", "code": 1116 } }, "parameters": [ { "name": "Geoid (height correction) model file", "value": "VORF-UK08_ETRF_to_MSL.vrf", "id": { "authority": "EPSG", "code": 8666 } } ], "accuracy": "0.3", "scope": "Derivation of depths from GNSS observations.", "area": "Ireland and United Kingdom (UK) (including Isle of Man and Channel Islands) - inshore, nearshore and offshore.", "bbox": { "south_latitude": 47.42, "west_longitude": -16.1, "north_latitude": 63.89, "east_longitude": 3.4 }, "id": { "authority": "EPSG", "code": 10154 }, "remarks": "For reversible alternative to this transformation see ETRS89 to ETRS89 + MSL UK & Ireland VORF08 depth (1) (code 10152)." }
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