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Geodetic CRS: JGD2024
Datum: Japanese Geodetic Datum 2024
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: Geospatial Information Authority of Japan (GSI), https://www.gsi.go.jp/
Revision date: 2026-04-21
Scope: Geodesy, cadastre, engineering survey, topographic mapping.
Remarks: This concatenated operation is the path recommended by GSI for deriving JGD2024 (vertical) height from GNSS-derived ellipsoidal height in accordance with Survey Act requirements, as using the JPGEO2024 geoid separation model directly (JGD2024 to JGD2024 (vertical) height (1), CT code 11334) is not aligned with Survey Act requirements for coordinates to be at epoch 2011.395.
Area of use: Japan - onshore mainland - Hokkaido, Honshu, Shikoku, Kyushu.
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
CONCATENATEDOPERATION["JGD2024 to JGD2024 (vertical) height (2)", VERSION["GSI-Jpn"], SOURCECRS[ GEOGCRS["JGD2024", DATUM["Japanese Geodetic Datum 2024", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",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",6667]]], TARGETCRS[ VERTCRS["JGD2024 (vertical) height", VDATUM["Japanese Geodetic Datum 2024 (vertical)", ANCHOREPOCH[2024.415]], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], ID["EPSG",11317]]], STEP[ COORDINATEOPERATION["JGD2024 to JGD2024 + JGD2011 (vertical) height (1)", VERSION["GSI-Jpn 2011"], SOURCECRS[ GEOGCRS["JGD2024", DATUM["Japanese Geodetic Datum 2024", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",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",6667]]], TARGETCRS[ COMPOUNDCRS["JGD2024 + JGD2011 (vertical) height", GEOGCRS["JGD2024", DATUM["Japanese Geodetic Datum 2024", 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]]], VERTCRS["JGD2011 (vertical) height", VDATUM["Japanese Geodetic Datum 2011 (vertical)"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]]], ID["EPSG",6697]]], METHOD["Geog3D to Geog2D+GravityRelatedHeight (ISG)", ID["EPSG",1118]], PARAMETERFILE["Geoid (height correction) model file","GSIGEO2011.isg"], INTERPOLATIONCRS[ GEOGCRS["JGD2024", DATUM["Japanese Geodetic Datum 2024", 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[0.03], ID["EPSG",11439]]], STEP[ COORDINATEOPERATION["JGD2011 (vertical) height to JGD2024 (vertical) height (1)", VERSION["GSI-Jpn 2024"], SOURCECRS[ VERTCRS["JGD2011 (vertical) height", VDATUM["Japanese Geodetic Datum 2011 (vertical)"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], ID["EPSG",6695]]], TARGETCRS[ VERTCRS["JGD2024 (vertical) height", VDATUM["Japanese Geodetic Datum 2024 (vertical)", ANCHOREPOCH[2024.415]], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], ID["EPSG",11317]]], METHOD["Vertical Offset by Grid Interpolation (PatchJGD)", ID["EPSG",1162]], PARAMETERFILE["Vertical offset file","hyokorevBM_jgd2024_h.par"], INTERPOLATIONCRS[ GEOGCRS["JGD2024", DATUM["Japanese Geodetic Datum 2024", 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[0.03], ID["EPSG",11440]]], OPERATIONACCURACY[0.04], USAGE[ SCOPE["Geodesy, cadastre, engineering survey, topographic mapping."], AREA["Japan - onshore mainland - Hokkaido, Honshu, Shikoku, Kyushu."], BBOX[30.94,129.3,45.54,145.87]], ID["EPSG",11441], REMARK["This concatenated operation is the path recommended by GSI for deriving JGD2024 (vertical) height from GNSS-derived ellipsoidal height in accordance with Survey Act requirements, as using the JPGEO2024 geoid separation model directly (JGD2024 to JGD2024 (vertical) height (1), CT code 11334) is not aligned with Survey Act requirements for coordinates to be at epoch 2011.395."]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ConcatenatedOperation", "name": "JGD2024 to JGD2024 (vertical) height (2)", "source_crs": { "type": "GeographicCRS", "name": "JGD2024", "datum": { "type": "GeodeticReferenceFrame", "name": "Japanese Geodetic Datum 2024", "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" }, { "name": "Ellipsoidal height", "abbreviation": "h", "direction": "up", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 6667 }, "remarks": "Replaces JGD2000 (CRS code 4947) with effect from 21st October 2011. On adoption of JGD2024 (vertical) with effect from 1st April 2025, the name of this geodetic CRS was changed from JGD2011 to JGD2024; there is no change of definition or of coordinate values." }, "target_crs": { "type": "VerticalCRS", "name": "JGD2024 (vertical) height", "datum": { "type": "VerticalReferenceFrame", "name": "Japanese Geodetic Datum 2024 (vertical)", "anchor_epoch": 2024.415 }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 11317 } }, "steps": [ { "type": "Transformation", "name": "JGD2024 to JGD2024 + JGD2011 (vertical) height (1)", "source_crs": { "type": "GeographicCRS", "name": "JGD2024", "datum": { "type": "GeodeticReferenceFrame", "name": "Japanese Geodetic Datum 2024", "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" }, { "name": "Ellipsoidal height", "abbreviation": "h", "direction": "up", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 6667 }, "remarks": "Replaces JGD2000 (CRS code 4947) with effect from 21st October 2011. On adoption of JGD2024 (vertical) with effect from 1st April 2025, the name of this geodetic CRS was changed from JGD2011 to JGD2024; there is no change of definition or of coordinate values." }, "target_crs": { "type": "CompoundCRS", "name": "JGD2024 + JGD2011 (vertical) height", "components": [ { "type": "GeographicCRS", "name": "JGD2024", "datum": { "type": "GeodeticReferenceFrame", "name": "Japanese Geodetic Datum 2024", "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" } ] }, "remarks": "Replaces JGD2000 (CRS code 4612) with effect from 21st October 2011. On adoption of JGD2024 (vertical) with effect from 1st April 2025, the name of this geodetic CRS was changed from JGD2011 to JGD2024; there is no change of definition or of coordinate values." }, { "type": "VerticalCRS", "name": "JGD2011 (vertical) height", "datum": { "type": "VerticalReferenceFrame", "name": "Japanese Geodetic Datum 2011 (vertical)" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] } } ], "id": { "authority": "EPSG", "code": 6697 } }, "interpolation_crs": { "type": "GeographicCRS", "name": "JGD2024", "datum": { "type": "GeodeticReferenceFrame", "name": "Japanese Geodetic Datum 2024", "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": 6668 }, "remarks": "Replaces JGD2000 (CRS code 4612) with effect from 21st October 2011. On adoption of JGD2024 (vertical) with effect from 1st April 2025, the name of this geodetic CRS was changed from JGD2011 to JGD2024; there is no change of definition or of coordinate values." }, "method": { "name": "Geog3D to Geog2D+GravityRelatedHeight (ISG)", "id": { "authority": "EPSG", "code": 1118 } }, "parameters": [ { "name": "Geoid (height correction) model file", "value": "GSIGEO2011.isg", "id": { "authority": "EPSG", "code": 8666 } } ], "accuracy": "0.03", "id": { "authority": "EPSG", "code": 11439 }, "remarks": "Reversible alternative to JGD2011 to JGD2011 (vertical) height (1) (CT code 11438). Note: source CRS JGD2011 was renamed as JGD2024 with effect from 1st April 2025 to align with adoption of JGD2024 (vertical)." }, { "type": "Transformation", "name": "JGD2011 (vertical) height to JGD2024 (vertical) height (1)", "source_crs": { "type": "VerticalCRS", "name": "JGD2011 (vertical) height", "datum": { "type": "VerticalReferenceFrame", "name": "Japanese Geodetic Datum 2011 (vertical)" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 6695 } }, "target_crs": { "type": "VerticalCRS", "name": "JGD2024 (vertical) height", "datum": { "type": "VerticalReferenceFrame", "name": "Japanese Geodetic Datum 2024 (vertical)", "anchor_epoch": 2024.415 }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 11317 } }, "interpolation_crs": { "type": "GeographicCRS", "name": "JGD2024", "datum": { "type": "GeodeticReferenceFrame", "name": "Japanese Geodetic Datum 2024", "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": 6668 }, "remarks": "Replaces JGD2000 (CRS code 4612) with effect from 21st October 2011. On adoption of JGD2024 (vertical) with effect from 1st April 2025, the name of this geodetic CRS was changed from JGD2011 to JGD2024; there is no change of definition or of coordinate values." }, "method": { "name": "Vertical Offset by Grid Interpolation (PatchJGD)", "id": { "authority": "EPSG", "code": 1162 } }, "parameters": [ { "name": "Vertical offset file", "value": "hyokorevBM_jgd2024_h.par", "id": { "authority": "EPSG", "code": 8732 } } ], "accuracy": "0.03", "id": { "authority": "EPSG", "code": 11440 }, "remarks": "On the adoption of JGD2024 (vertical) on 1st April 2025, the interpolation CRS was renamed from JGD2011 to JGD2024; there is no change of definition or of coordinate values." } ], "accuracy": "0.04", "scope": "Geodesy, cadastre, engineering survey, topographic mapping.", "area": "Japan - onshore mainland - Hokkaido, Honshu, Shikoku, Kyushu.", "bbox": { "south_latitude": 30.94, "west_longitude": 129.3, "north_latitude": 45.54, "east_longitude": 145.87 }, "id": { "authority": "EPSG", "code": 11441 }, "remarks": "This concatenated operation is the path recommended by GSI for deriving JGD2024 (vertical) height from GNSS-derived ellipsoidal height in accordance with Survey Act requirements, as using the JPGEO2024 geoid separation model directly (JGD2024 to JGD2024 (vertical) height (1), CT code 11334) is not aligned with Survey Act requirements for coordinates to be at epoch 2011.395." }
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