GLLMSL(2022) height to GVR2016 height (1)

Attributes

Geodetic CRS: GLLMSL(2022) height

Datum: Greenland Local Mean Sea Level (2022)

Data source: EPSG

Information source: Agency for Data Supply and Infrastructure; https://www.sdfi.dk

Revision date: 2024-03-13

Scope: Change of height to a different vertical reference surface.

Remarks: File format is GeoTIFF grid (.gtg) which is algorithmically equivalent to the GTX format (see https://proj.org/en/9.3/specifications/geodetictiffgrids.html).

Method: Vertical Offset by Grid Interpolation (gtg)

Area of use: Greenland - onshore.

Description: (0,)

Covered area powered by MapTiler

Greenland - onshore.

Definition: OGC Well Known Text 2 (2019)

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COORDINATEOPERATION["GLLMSL(2022) height to GVR2016 height (1)",
    VERSION["SDFI-Grl 2022"],
    SOURCECRS[
        VERTCRS["GLLMSL(2022) height",
            VDATUM["Greenland Local Mean Sea Level (2022)"],
            CS[vertical,1],
                AXIS["gravity-related height (H)",up,
                    LENGTHUNIT["metre",1]],
            ID["EPSG",10565]]],
    TARGETCRS[
        VERTCRS["GVR2016 height",
            VDATUM["Greenland Vertical Reference 2016"],
            CS[vertical,1],
                AXIS["gravity-related height (H)",up,
                    LENGTHUNIT["metre",1]],
            ID["EPSG",8267]]],
    METHOD["Vertical Offset by Grid Interpolation (gtg)",
        ID["EPSG",1129]],
    PARAMETERFILE["Vertical offset file","gllmsl_2022.tif"],
    INTERPOLATIONCRS[
        GEOGCRS["GR96",
            DATUM["Greenland 1996",
                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[0.02],
    USAGE[
        SCOPE["Change of height to a different vertical reference surface."],
        AREA["Greenland - onshore."],
        BBOX[59.74,-73.29,83.67,-11.81]],
    ID["EPSG",10566],
    REMARK["File format is GeoTIFF grid (.gtg) which is algorithmically equivalent to  the GTX format (see https://proj.org/en/9.3/specifications/geodetictiffgrids.html)."]]

Definition: PROJ.4

+proj=vgridshift +grids=dk_sdfi_gllmsl_2022.tif +multiplier=1

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:10566","+proj=vgridshift +grids=dk_sdfi_gllmsl_2022.tif +multiplier=1");

Definition: JSON

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{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Transformation",
    "name": "GLLMSL(2022) height to GVR2016 height (1)",
    "source_crs": {
        "type": "VerticalCRS",
        "name": "GLLMSL(2022) height",
        "datum": {
            "type": "VerticalReferenceFrame",
            "name": "Greenland Local Mean Sea Level (2022)"
        },
        "coordinate_system": {
            "subtype": "vertical",
            "axis": [
                {
                    "name": "Gravity-related height",
                    "abbreviation": "H",
                    "direction": "up",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 10565
        }
    },
    "target_crs": {
        "type": "VerticalCRS",
        "name": "GVR2016 height",
        "datum": {
            "type": "VerticalReferenceFrame",
            "name": "Greenland Vertical Reference 2016"
        },
        "coordinate_system": {
            "subtype": "vertical",
            "axis": [
                {
                    "name": "Gravity-related height",
                    "abbreviation": "H",
                    "direction": "up",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 8267
        }
    },
    "interpolation_crs": {
        "type": "GeographicCRS",
        "name": "GR96",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Greenland 1996",
            "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": 4747
        }
    },
    "method": {
        "name": "Vertical Offset by Grid Interpolation (gtg)",
        "id": {
            "authority": "EPSG",
            "code": 1129
        }
    },
    "parameters": [
        {
            "name": "Vertical offset file",
            "value": "gllmsl_2022.tif",
            "id": {
                "authority": "EPSG",
                "code": 8732
            }
        }
    ],
    "accuracy": "0.02",
    "scope": "Change of height to a different vertical reference surface.",
    "area": "Greenland - onshore.",
    "bbox": {
        "south_latitude": 59.74,
        "west_longitude": -73.29,
        "north_latitude": 83.67,
        "east_longitude": -11.81
    },
    "id": {
        "authority": "EPSG",
        "code": 10566
    },
    "remarks": "File format is GeoTIFF grid (.gtg) which is algorithmically equivalent to  the GTX format (see https://proj.org/en/9.3/specifications/geodetictiffgrids.html)."
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=vgridshift"
	"grids=dk_sdfi_gllmsl_2022.tif"
	"multiplier=1"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=vgridshift +grids=dk_sdfi_gllmsl_2022.tif +multiplier=1">
	<Layer srs="+proj=vgridshift +grids=dk_sdfi_gllmsl_2022.tif +multiplier=1">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 10566, 'EPSG', 10566, '+proj=vgridshift +grids=dk_sdfi_gllmsl_2022.tif +multiplier=1', 'None');

EPSG:10566