EPSG:9499

ETRS89-AUT [2002] to GHA height (2)

Attributes

Geodetic CRS: ETRS89-AUT [2002]

Datum: ETRS89-AUT [2002]

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: IOGP

Revision date: 2025-10-17

Steps of transformation: 9276 9275

Scope: Derivation of gravity-related heights from GNSS observations.

Remarks: This concatenated operation gives the same result as the HoehenGrid-plus offset from ETRS89-AUT [2002] to GHA height. HoehenGrid-plus is implemented in BEV-Transformator using MGI (CRS 4312) as the interpolation CRS for the grid

Area of use: Austria.

Description: (0,)

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Definition: OGC Well Known Text 2 (2019)

CONCATENATEDOPERATION["ETRS89-AUT [2002] to GHA height (2)",
    VERSION["BEV-Aut"],
    SOURCECRS[
        GEOGCRS["ETRS89-AUT [2002]",
            DATUM["ETRS89-AUT [2002]",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]],
                ANCHOREPOCH[2002.56]],
            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",11056]]],
    TARGETCRS[
        VERTCRS["GHA height",
            VDATUM["Gebrauchshohen ADRIA"],
            CS[vertical,1],
                AXIS["gravity-related height (H)",up,
                    LENGTHUNIT["metre",1]],
            ID["EPSG",5778]]],
    STEP[
        COORDINATEOPERATION["ETRS89-AUT [2002] to EVRF2000 Austria height (1)",
            VERSION["BEV-Aut"],
            SOURCECRS[
                GEOGCRS["ETRS89-AUT [2002]",
                    DATUM["ETRS89-AUT [2002]",
                        ELLIPSOID["GRS 1980",6378137,298.257222101,
                            LENGTHUNIT["metre",1]],
                        ANCHOREPOCH[2002.56]],
                    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",11056]]],
            TARGETCRS[
                VERTCRS["EVRF2000 Austria height",
                    VDATUM["European Vertical Reference Frame 2000 Austria"],
                    CS[vertical,1],
                        AXIS["gravity-related height (H)",up,
                            LENGTHUNIT["metre",1]],
                    ID["EPSG",9274]]],
            METHOD["Geographic3D to GravityRelatedHeight (BEV AT)",
                ID["EPSG",1081]],
            PARAMETERFILE["Geoid (height correction) model file","GEOID_GRS80_Oesterreich.csv"],
            INTERPOLATIONCRS[
                GEOGCRS["ETRS89-AUT [2002]",
                    DATUM["ETRS89-AUT [2002]",
                        ELLIPSOID["GRS 1980",6378137,298.257222101,
                            LENGTHUNIT["metre",1]],
                        ANCHOREPOCH[2002.56]],
                    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[0.05],
            ID["EPSG",9276]]],
    STEP[
        COORDINATEOPERATION["Inverse of GHA height to EVRF2000 Austria height (1)",
            SOURCECRS[
                VERTCRS["EVRF2000 Austria height",
                    VDATUM["European Vertical Reference Frame 2000 Austria"],
                    CS[vertical,1],
                        AXIS["gravity-related height (H)",up,
                            LENGTHUNIT["metre",1]],
                    ID["EPSG",9274]]],
            TARGETCRS[
                VERTCRS["GHA height",
                    VDATUM["Gebrauchshohen ADRIA"],
                    CS[vertical,1],
                        AXIS["gravity-related height (H)",up,
                            LENGTHUNIT["metre",1]],
                    ID["EPSG",5778]]],
            METHOD["Inverse of Vertical Offset by Grid Interpolation (BEV AT)",
                ID["INVERSE(EPSG)",1080]],
            PARAMETERFILE["Vertical offset file","GV_HoehenGrid_V1.csv"],
            INTERPOLATIONCRS[
                GEOGCRS["MGI",
                    DATUM["Militar-Geographische Institut",
                        ELLIPSOID["Bessel 1841",6377397.155,299.1528128,
                            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[0.05],
            ID["INVERSE(EPSG)",9275]]],
    OPERATIONACCURACY[0.07],
    USAGE[
        SCOPE["Derivation of gravity-related heights from GNSS observations."],
        AREA["Austria."],
        BBOX[46.4,9.53,49.02,17.17]],
    ID["EPSG",9499],
    REMARK["This concatenated operation gives the same result as the HoehenGrid-plus offset from ETRS89-AUT [2002] to GHA height. HoehenGrid-plus is implemented in BEV-Transformator using MGI (CRS 4312) as the interpolation CRS for the grid"]]

Definition: PROJ.4

+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=at_bev_GEOID_GRS80_Oesterreich.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1 +step +inv +proj=vgridshift +grids=at_bev_GV_Hoehengrid_V1.tif +multiplier=1

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:9499","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=at_bev_GEOID_GRS80_Oesterreich.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1 +step +inv +proj=vgridshift +grids=at_bev_GV_Hoehengrid_V1.tif +multiplier=1");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "ConcatenatedOperation",
    "name": "ETRS89-AUT [2002] to GHA height (2)",
    "source_crs": {
        "type": "GeographicCRS",
        "name": "ETRS89-AUT [2002]",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "ETRS89-AUT [2002]",
            "anchor_epoch": 2002.56,
            "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": 11056
        },
        "remarks": "National realization of ETRS89 in Austria."
    },
    "target_crs": {
        "type": "VerticalCRS",
        "name": "GHA height",
        "datum": {
            "type": "VerticalReferenceFrame",
            "name": "Gebrauchshohen ADRIA"
        },
        "coordinate_system": {
            "subtype": "vertical",
            "axis": [
                {
                    "name": "Gravity-related height",
                    "abbreviation": "H",
                    "direction": "up",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 5778
        }
    },
    "steps": [
        {
            "type": "Transformation",
            "name": "ETRS89-AUT [2002] to EVRF2000 Austria height (1)",
            "source_crs": {
                "type": "GeographicCRS",
                "name": "ETRS89-AUT [2002]",
                "datum": {
                    "type": "GeodeticReferenceFrame",
                    "name": "ETRS89-AUT [2002]",
                    "anchor_epoch": 2002.56,
                    "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": 11056
                },
                "remarks": "National realization of ETRS89 in Austria."
            },
            "target_crs": {
                "type": "VerticalCRS",
                "name": "EVRF2000 Austria height",
                "datum": {
                    "type": "VerticalReferenceFrame",
                    "name": "European Vertical Reference Frame 2000 Austria"
                },
                "coordinate_system": {
                    "subtype": "vertical",
                    "axis": [
                        {
                            "name": "Gravity-related height",
                            "abbreviation": "H",
                            "direction": "up",
                            "unit": "metre"
                        }
                    ]
                },
                "id": {
                    "authority": "EPSG",
                    "code": 9274
                }
            },
            "interpolation_crs": {
                "type": "GeographicCRS",
                "name": "ETRS89-AUT [2002]",
                "datum": {
                    "type": "GeodeticReferenceFrame",
                    "name": "ETRS89-AUT [2002]",
                    "anchor_epoch": 2002.56,
                    "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": 11057
                },
                "remarks": "Horizontal component of national realization of ETRS89 in Austria."
            },
            "method": {
                "name": "Geographic3D to GravityRelatedHeight (BEV AT)",
                "id": {
                    "authority": "EPSG",
                    "code": 1081
                }
            },
            "parameters": [
                {
                    "name": "Geoid (height correction) model file",
                    "value": "GEOID_GRS80_Oesterreich.csv",
                    "id": {
                        "authority": "EPSG",
                        "code": 8666
                    }
                }
            ],
            "accuracy": "0.05",
            "id": {
                "authority": "EPSG",
                "code": 9276
            },
            "remarks": "Austrian Geoid 2008. Accuracy 5cm (1 sigma). The transformation is implemented in BEV-Transformator. For reversible alternative to this transformation see ETRS89-AUT [2002] to ETRS89-AUT [2002] + EVRF2000 Austria height (1) (code 9600)."
        },
        {
            "type": "Transformation",
            "name": "Inverse of GHA height to EVRF2000 Austria height (1)",
            "source_crs": {
                "type": "VerticalCRS",
                "name": "EVRF2000 Austria height",
                "datum": {
                    "type": "VerticalReferenceFrame",
                    "name": "European Vertical Reference Frame 2000 Austria"
                },
                "coordinate_system": {
                    "subtype": "vertical",
                    "axis": [
                        {
                            "name": "Gravity-related height",
                            "abbreviation": "H",
                            "direction": "up",
                            "unit": "metre"
                        }
                    ]
                },
                "id": {
                    "authority": "EPSG",
                    "code": 9274
                }
            },
            "target_crs": {
                "type": "VerticalCRS",
                "name": "GHA height",
                "datum": {
                    "type": "VerticalReferenceFrame",
                    "name": "Gebrauchshohen ADRIA"
                },
                "coordinate_system": {
                    "subtype": "vertical",
                    "axis": [
                        {
                            "name": "Gravity-related height",
                            "abbreviation": "H",
                            "direction": "up",
                            "unit": "metre"
                        }
                    ]
                },
                "id": {
                    "authority": "EPSG",
                    "code": 5778
                }
            },
            "interpolation_crs": {
                "type": "GeographicCRS",
                "name": "MGI",
                "datum": {
                    "type": "GeodeticReferenceFrame",
                    "name": "Militar-Geographische Institut",
                    "ellipsoid": {
                        "name": "Bessel 1841",
                        "semi_major_axis": 6377397.155,
                        "inverse_flattening": 299.1528128
                    }
                },
                "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": 4312
                },
                "remarks": "Retrospectively defined as derived after the introduction of geographic 3D CRS (code 9267)."
            },
            "method": {
                "name": "Inverse of Vertical Offset by Grid Interpolation (BEV AT)",
                "id": {
                    "authority": "INVERSE(EPSG)",
                    "code": 1080
                }
            },
            "parameters": [
                {
                    "name": "Vertical offset file",
                    "value": "GV_HoehenGrid_V1.csv",
                    "id": {
                        "authority": "EPSG",
                        "code": 8732
                    }
                }
            ],
            "accuracy": "0.05",
            "id": {
                "authority": "INVERSE(EPSG)",
                "code": 9275
            },
            "remarks": "Care! Austrian literature describes this transformation in direction EVRF2000 Austria height to GHA height with offset subtracted. EPSG method has offset as an addition. See method formula and example. The grid is implemented in BEV-Transformator."
        }
    ],
    "accuracy": "0.07",
    "scope": "Derivation of gravity-related heights from GNSS observations.",
    "area": "Austria.",
    "bbox": {
        "south_latitude": 46.4,
        "west_longitude": 9.53,
        "north_latitude": 49.02,
        "east_longitude": 17.17
    },
    "id": {
        "authority": "EPSG",
        "code": 9499
    },
    "remarks": "This concatenated operation gives the same result as the HoehenGrid-plus offset from ETRS89-AUT [2002] to GHA height. HoehenGrid-plus is implemented in BEV-Transformator using MGI (CRS 4312) as the interpolation CRS for the grid"
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=pipeline"
	"step"
	"proj=axisswap"
	"order=2,1"
	"step"
	"proj=unitconvert"
	"xy_in=deg"
	"xy_out=rad"
	"step"
	"inv"
	"proj=vgridshift"
	"grids=at_bev_GEOID_GRS80_Oesterreich.tif"
	"multiplier=1"
	"step"
	"proj=unitconvert"
	"xy_in=rad"
	"xy_out=deg"
	"step"
	"proj=axisswap"
	"order=2,1"
	"step"
	"inv"
	"proj=vgridshift"
	"grids=at_bev_GV_Hoehengrid_V1.tif"
	"multiplier=1"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=at_bev_GEOID_GRS80_Oesterreich.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1 +step +inv +proj=vgridshift +grids=at_bev_GV_Hoehengrid_V1.tif +multiplier=1">
	<Layer srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=at_bev_GEOID_GRS80_Oesterreich.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1 +step +inv +proj=vgridshift +grids=at_bev_GV_Hoehengrid_V1.tif +multiplier=1">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 9499, 'EPSG', 9499, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=at_bev_GEOID_GRS80_Oesterreich.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1 +step +inv +proj=vgridshift +grids=at_bev_GV_Hoehengrid_V1.tif +multiplier=1', 'None');