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Geodetic CRS: ITRF2014
Datum: International Terrestrial Reference Frame 2014
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: Häkli et al., "NKG2020 transformation: An updated transformation between dynamic and static reference frames in the Nordic and Baltic countries"; Journal of Geodetic Science 2023; 13: 20220155, https://doi.org/10.1515/jogs-2022-0155.
Revision date: 2025-08-24
Scope: Geodesy.
Remarks: The coordinate epoch (in years) of the coordinates referenced to the source CRS (ITRF2014) is user-defined input and is used as the source epoch in step 2.
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
CONCATENATEDOPERATION["ITRF2014 to NKG_ETRF14 (1)", VERSION["NKG2020"], SOURCECRS[ GEODCRS["ITRF2014", DYNAMIC[ FRAMEEPOCH[2010]], DATUM["International Terrestrial Reference Frame 2014", 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",7789]]], TARGETCRS[ GEODCRS["NKG_ETRF14", DATUM["Nordic Geodetic Commission ETRF14", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]], ANCHOREPOCH[2000]], 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",10805]]], STEP[ COORDINATEOPERATION["ITRF2014 to ETRF2014 (2)", VERSION["EUREF-Eur 2014"], SOURCECRS[ GEODCRS["ITRF2014", DYNAMIC[ FRAMEEPOCH[2010]], DATUM["International Terrestrial Reference Frame 2014", 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",7789]]], TARGETCRS[ GEODCRS["ETRF2014", DYNAMIC[ FRAMEEPOCH[1989]], DATUM["European Terrestrial Reference Frame 2014", 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",8401]]], METHOD["Time-dependent Position Vector tfm (geocentric)", ID["EPSG",1053]], PARAMETER["X-axis translation",0, LENGTHUNIT["millimetre",0.001], ID["EPSG",8605]], PARAMETER["Y-axis translation",0, LENGTHUNIT["millimetre",0.001], ID["EPSG",8606]], PARAMETER["Z-axis translation",0, LENGTHUNIT["millimetre",0.001], ID["EPSG",8607]], PARAMETER["X-axis rotation",1.785, ANGLEUNIT["milliarc-second",4.84813681109536E-09], ID["EPSG",8608]], PARAMETER["Y-axis rotation",11.151, ANGLEUNIT["milliarc-second",4.84813681109536E-09], ID["EPSG",8609]], PARAMETER["Z-axis rotation",-16.17, ANGLEUNIT["milliarc-second",4.84813681109536E-09], ID["EPSG",8610]], PARAMETER["Scale difference",0, SCALEUNIT["parts per billion",1E-09], ID["EPSG",8611]], PARAMETER["Rate of change of X-axis translation",0, LENGTHUNIT["millimetres per year",3.16887651727315E-11], ID["EPSG",1040]], PARAMETER["Rate of change of Y-axis translation",0, LENGTHUNIT["millimetres per year",3.16887651727315E-11], ID["EPSG",1041]], PARAMETER["Rate of change of Z-axis translation",0, LENGTHUNIT["millimetres per year",3.16887651727315E-11], ID["EPSG",1042]], PARAMETER["Rate of change of X-axis rotation",0.085, ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16], ID["EPSG",1043]], PARAMETER["Rate of change of Y-axis rotation",0.531, ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16], ID["EPSG",1044]], PARAMETER["Rate of change of Z-axis rotation",-0.77, ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16], ID["EPSG",1045]], PARAMETER["Rate of change of Scale difference",0, SCALEUNIT["parts per billion per year",3.16887651727315E-17], ID["EPSG",1046]], PARAMETER["Parameter reference epoch",2010, TIMEUNIT["year",31556925.445], ID["EPSG",1047]], OPERATIONACCURACY[0.0], ID["EPSG",8880], REMARK["Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9. See ITRF2014 to ETRF2014 (1) (code 8366) for transformation which defines ETRF2014. Transformation 8880 is equivalent to 8366 but with parameter values at epoch 2010.00."]]], STEP[ COORDINATEOPERATION["ETRF2014 to NKG_ETRF14 (1)", VERSION["NKG2020"], SOURCECRS[ GEODCRS["ETRF2014", DYNAMIC[ FRAMEEPOCH[1989]], DATUM["European Terrestrial Reference Frame 2014", 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",8401]]], TARGETCRS[ GEODCRS["NKG_ETRF14", DATUM["Nordic Geodetic Commission ETRF14", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]], ANCHOREPOCH[2000]], 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",10805]]], METHOD["Geocentric translations using NEU velocity grid (gtg)", ID["EPSG",1144]], PARAMETERFILE["Point motion velocity grid file","NKG_RF17vel.tif"], PARAMETER["Target epoch",2000, TIMEUNIT["year",31556925.445], ID["EPSG",1069]], INTERPOLATIONCRS[ GEOGCRS["ETRF2014", DYNAMIC[ FRAMEEPOCH[1989]], DATUM["European Terrestrial Reference Frame 2014", ELLIPSOID["GRS 1980",6378137,298.257222101, 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]]]], OPERATIONACCURACY[0.003], ID["EPSG",10809], REMARK["Nordic Geodetic Commission (NKG) 2020 transformation. Accuracy estimated as 0.1, 0.1, and 0.4 mm/year for the North, East, and Up components, respectively. Because the difference in coordinates between ETRF2014 and NKG_ETRF14 is small (under a decimetre), although the interpolation CRS is given as ETRF2014, any realization of ETRS89 (including NKG_ETRF14) may be used as the interpolation CRS. The source CRS ETRF2014 is a dynamic CRS and the coordinate epoch for the coordinates referenced to it is a user-defined input."]]], OPERATIONACCURACY[0.001], USAGE[ SCOPE["Geodesy."], AREA["Denmark, Estonia, Finland, Latvia, Lithuania, and Sweden - onshore and offshore; Norway - onshore, nearshore, and offshore southeast of a line joining Haugesund and the western limit of the Norway-Denmark maritime boundary."], BBOX[53.89,3.24,71.39,31.77]], ID["EPSG",10815], REMARK["The coordinate epoch (in years) of the coordinates referenced to the source CRS (ITRF2014) is user-defined input and is used as the source epoch in step 2."]]
Definition: PROJ.4
+proj=pipeline +step +proj=helmert +x=0 +y=0 +z=0 +rx=0.001785 +ry=0.011151 +rz=-0.01617 +s=0 +dx=0 +dy=0 +dz=0 +drx=8.5e-05 +dry=0.000531 +drz=-0.00077 +ds=0 +t_epoch=2010 +convention=position_vector +step +inv +proj=deformation +t_epoch=2000 +grids=eur_nkg_nkgrf17vel.tif +ellps=GRS80
Definition: JavaScript (Proj4js)
proj4.defs("EPSG:10815","+proj=pipeline +step +proj=helmert +x=0 +y=0 +z=0 +rx=0.001785 +ry=0.011151 +rz=-0.01617 +s=0 +dx=0 +dy=0 +dz=0 +drx=8.5e-05 +dry=0.000531 +drz=-0.00077 +ds=0 +t_epoch=2010 +convention=position_vector +step +inv +proj=deformation +t_epoch=2000 +grids=eur_nkg_nkgrf17vel.tif +ellps=GRS80");
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ConcatenatedOperation", "name": "ITRF2014 to NKG_ETRF14 (1)", "source_crs": { "type": "GeodeticCRS", "name": "ITRF2014", "datum": { "type": "DynamicGeodeticReferenceFrame", "name": "International Terrestrial Reference Frame 2014", "frame_reference_epoch": 2010, "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": 7789 } }, "target_crs": { "type": "GeodeticCRS", "name": "NKG_ETRF14", "datum": { "type": "GeodeticReferenceFrame", "name": "Nordic Geodetic Commission ETRF14", "anchor_epoch": 2000, "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": 10805 } }, "steps": [ { "type": "Transformation", "name": "ITRF2014 to ETRF2014 (2)", "source_crs": { "type": "GeodeticCRS", "name": "ITRF2014", "datum": { "type": "DynamicGeodeticReferenceFrame", "name": "International Terrestrial Reference Frame 2014", "frame_reference_epoch": 2010, "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": 7789 } }, "target_crs": { "type": "GeodeticCRS", "name": "ETRF2014", "datum": { "type": "DynamicGeodeticReferenceFrame", "name": "European Terrestrial Reference Frame 2014", "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": 8401 } }, "method": { "name": "Time-dependent Position Vector tfm (geocentric)", "id": { "authority": "EPSG", "code": 1053 } }, "parameters": [ { "name": "X-axis translation", "value": 0, "unit": { "type": "LinearUnit", "name": "millimetre", "conversion_factor": 0.001 }, "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": 0, "unit": { "type": "LinearUnit", "name": "millimetre", "conversion_factor": 0.001 }, "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": 0, "unit": { "type": "LinearUnit", "name": "millimetre", "conversion_factor": 0.001 }, "id": { "authority": "EPSG", "code": 8607 } }, { "name": "X-axis rotation", "value": 1.785, "unit": { "type": "AngularUnit", "name": "milliarc-second", "conversion_factor": 4.84813681109536e-09 }, "id": { "authority": "EPSG", "code": 8608 } }, { "name": "Y-axis rotation", "value": 11.151, "unit": { "type": "AngularUnit", "name": "milliarc-second", "conversion_factor": 4.84813681109536e-09 }, "id": { "authority": "EPSG", "code": 8609 } }, { "name": "Z-axis rotation", "value": -16.17, "unit": { "type": "AngularUnit", "name": "milliarc-second", "conversion_factor": 4.84813681109536e-09 }, "id": { "authority": "EPSG", "code": 8610 } }, { "name": "Scale difference", "value": 0, "unit": { "type": "ScaleUnit", "name": "parts per billion", "conversion_factor": 1e-09 }, "id": { "authority": "EPSG", "code": 8611 } }, { "name": "Rate of change of X-axis translation", "value": 0, "unit": { "type": "LinearUnit", "name": "millimetres per year", "conversion_factor": 3.16887651727315e-11 }, "id": { "authority": "EPSG", "code": 1040 } }, { "name": "Rate of change of Y-axis translation", "value": 0, "unit": { "type": "LinearUnit", "name": "millimetres per year", "conversion_factor": 3.16887651727315e-11 }, "id": { "authority": "EPSG", "code": 1041 } }, { "name": "Rate of change of Z-axis translation", "value": 0, "unit": { "type": "LinearUnit", "name": "millimetres per year", "conversion_factor": 3.16887651727315e-11 }, "id": { "authority": "EPSG", "code": 1042 } }, { "name": "Rate of change of X-axis rotation", "value": 0.085, "unit": { "type": "AngularUnit", "name": "milliarc-seconds per year", "conversion_factor": 1.53631468932076e-16 }, "id": { "authority": "EPSG", "code": 1043 } }, { "name": "Rate of change of Y-axis rotation", "value": 0.531, "unit": { "type": "AngularUnit", "name": "milliarc-seconds per year", "conversion_factor": 1.53631468932076e-16 }, "id": { "authority": "EPSG", "code": 1044 } }, { "name": "Rate of change of Z-axis rotation", "value": -0.77, "unit": { "type": "AngularUnit", "name": "milliarc-seconds per year", "conversion_factor": 1.53631468932076e-16 }, "id": { "authority": "EPSG", "code": 1045 } }, { "name": "Rate of change of Scale difference", "value": 0, "unit": { "type": "ScaleUnit", "name": "parts per billion per year", "conversion_factor": 3.16887651727315e-17 }, "id": { "authority": "EPSG", "code": 1046 } }, { "name": "Parameter reference epoch", "value": 2010, "unit": { "type": "TimeUnit", "name": "year", "conversion_factor": 31556925.445 }, "id": { "authority": "EPSG", "code": 1047 } } ], "accuracy": "0.0", "id": { "authority": "EPSG", "code": 8880 }, "remarks": "Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9. See ITRF2014 to ETRF2014 (1) (code 8366) for transformation which defines ETRF2014. Transformation 8880 is equivalent to 8366 but with parameter values at epoch 2010.00." }, { "type": "Transformation", "name": "ETRF2014 to NKG_ETRF14 (1)", "source_crs": { "type": "GeodeticCRS", "name": "ETRF2014", "datum": { "type": "DynamicGeodeticReferenceFrame", "name": "European Terrestrial Reference Frame 2014", "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": 8401 } }, "target_crs": { "type": "GeodeticCRS", "name": "NKG_ETRF14", "datum": { "type": "GeodeticReferenceFrame", "name": "Nordic Geodetic Commission ETRF14", "anchor_epoch": 2000, "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": 10805 } }, "interpolation_crs": { "type": "GeographicCRS", "name": "ETRF2014", "datum": { "type": "DynamicGeodeticReferenceFrame", "name": "European Terrestrial Reference Frame 2014", "frame_reference_epoch": 1989, "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": 9069 } }, "method": { "name": "Geocentric translations using NEU velocity grid (gtg)", "id": { "authority": "EPSG", "code": 1144 } }, "parameters": [ { "name": "Point motion velocity grid file", "value": "NKG_RF17vel.tif", "id": { "authority": "EPSG", "code": 1050 } }, { "name": "Target epoch", "value": 2000, "unit": { "type": "TimeUnit", "name": "year", "conversion_factor": 31556925.445 }, "id": { "authority": "EPSG", "code": 1069 } } ], "accuracy": "0.003", "id": { "authority": "EPSG", "code": 10809 }, "remarks": "Nordic Geodetic Commission (NKG) 2020 transformation. Accuracy estimated as 0.1, 0.1, and 0.4 mm/year for the North, East, and Up components, respectively. Because the difference in coordinates between ETRF2014 and NKG_ETRF14 is small (under a decimetre), although the interpolation CRS is given as ETRF2014, any realization of ETRS89 (including NKG_ETRF14) may be used as the interpolation CRS. The source CRS ETRF2014 is a dynamic CRS and the coordinate epoch for the coordinates referenced to it is a user-defined input." } ], "accuracy": "0.001", "scope": "Geodesy.", "area": "Denmark, Estonia, Finland, Latvia, Lithuania, and Sweden - onshore and offshore; Norway - onshore, nearshore, and offshore southeast of a line joining Haugesund and the western limit of the Norway-Denmark maritime boundary.", "bbox": { "south_latitude": 53.89, "west_longitude": 3.24, "north_latitude": 71.39, "east_longitude": 31.77 }, "id": { "authority": "EPSG", "code": 10815 }, "remarks": "The coordinate epoch (in years) of the coordinates referenced to the source CRS (ITRF2014) is user-defined input and is used as the source epoch in step 2." }
Definition: MapServer - MAPfile
PROJECTION "proj=pipeline" "step" "proj=helmert" "x=0" "y=0" "z=0" "rx=0.001785" "ry=0.011151" "rz=-0.01617" "s=0" "dx=0" "dy=0" "dz=0" "drx=8.5e-05" "dry=0.000531" "drz=-0.00077" "ds=0" "t_epoch=2010" "convention=position_vector" "step" "inv" "proj=deformation" "t_epoch=2000" "grids=eur_nkg_nkgrf17vel.tif" "ellps=GRS80" END
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=pipeline +step +proj=helmert +x=0 +y=0 +z=0 +rx=0.001785 +ry=0.011151 +rz=-0.01617 +s=0 +dx=0 +dy=0 +dz=0 +drx=8.5e-05 +dry=0.000531 +drz=-0.00077 +ds=0 +t_epoch=2010 +convention=position_vector +step +inv +proj=deformation +t_epoch=2000 +grids=eur_nkg_nkgrf17vel.tif +ellps=GRS80"> <Layer srs="+proj=pipeline +step +proj=helmert +x=0 +y=0 +z=0 +rx=0.001785 +ry=0.011151 +rz=-0.01617 +s=0 +dx=0 +dy=0 +dz=0 +drx=8.5e-05 +dry=0.000531 +drz=-0.00077 +ds=0 +t_epoch=2010 +convention=position_vector +step +inv +proj=deformation +t_epoch=2000 +grids=eur_nkg_nkgrf17vel.tif +ellps=GRS80"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 10815, 'EPSG', 10815, '+proj=pipeline +step +proj=helmert +x=0 +y=0 +z=0 +rx=0.001785 +ry=0.011151 +rz=-0.01617 +s=0 +dx=0 +dy=0 +dz=0 +drx=8.5e-05 +dry=0.000531 +drz=-0.00077 +ds=0 +t_epoch=2010 +convention=position_vector +step +inv +proj=deformation +t_epoch=2000 +grids=eur_nkg_nkgrf17vel.tif +ellps=GRS80', 'None');
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