EPSG:9693

GDA2020 to GDA2020 + AVWS height (2)

Attributes

Geodetic CRS: GDA2020

Datum: Geocentric Datum of Australia 2020

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: Australian Vertical Working Surface (AVWS) Technical Implementation Plan v1.2, 26th August 2020, ANZLIC Intergovernmental Committee on Surveying and Mapping (ICSM) (http://www.icsm.gov.au).

Revision date: 2021-01-18

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

Remarks: Reversible alternative to GDA2020 to AVWS height (1) (code 9692). AGQG is used to realise AVWS. Uncertainties (4-8 cm across mainland Australia) given in accompanying file AGQG_uncertainty_20201120.gsb.

Method: Geog3D to Geog2D+GravityRelatedHeight (AUSGeoidv2)

Area of use: Australia including Lord Howe Island, Macquarie Island, Ashmore and Cartier Islands, Christmas Island, Cocos (Keeling) Islands, Norfolk Island. All onshore and offshore.

Description: (0,)

Covered area powered by MapTiler MapTiler logo
SimpleMap
Australia including Lord Howe Island, Macquarie Island, Ashmore and Cartier Islands, Christmas Island, Cocos (Keeling) Islands, Norfolk Island. All onshore and offshore.

MapTiler banner

Definition: OGC Well Known Text 2 (2019)

COORDINATEOPERATION["GDA2020 to GDA2020 + AVWS height (2)",
    VERSION["GA-Aus AGQG 20201120"],
    SOURCECRS[
        GEOGCRS["GDA2020",
            DATUM["Geocentric Datum of Australia 2020",
                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",7843]]],
    TARGETCRS[
        COMPOUNDCRS["GDA2020 + AVWS height",
            GEOGCRS["GDA2020",
                DATUM["Geocentric Datum of Australia 2020",
                    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["AVWS height",
                VDATUM["Australian Vertical Working Surface"],
                CS[vertical,1],
                    AXIS["gravity-related height (H)",up,
                        LENGTHUNIT["metre",1]]],
            ID["EPSG",9462]]],
    METHOD["Geog3D to Geog2D+GravityRelatedHeight (AUSGeoidv2)",
        ID["EPSG",1083]],
    PARAMETERFILE["Geoid (height correction) model file","AGQG_20201120.gsb"],
    INTERPOLATIONCRS[
        GEOGCRS["GDA2020",
            DATUM["Geocentric Datum of Australia 2020",
                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[0.1],
    USAGE[
        SCOPE["Derivation of gravity-related heights from GNSS observations."],
        AREA["Australia including Lord Howe Island, Macquarie Island, Ashmore and Cartier Islands, Christmas Island, Cocos (Keeling) Islands, Norfolk Island. All onshore and offshore."],
        BBOX[-60.55,93.41,-8.47,173.34]],
    ID["EPSG",9693],
    REMARK["Reversible alternative to GDA2020 to AVWS height (1) (code 9692). AGQG is used to realise AVWS. Uncertainties (4-8 cm across mainland Australia) given in accompanying file AGQG_uncertainty_20201120.gsb."]]

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=au_ga_AGQG_20201120.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:9693","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=au_ga_AGQG_20201120.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Transformation",
    "name": "GDA2020 to GDA2020 + AVWS height (2)",
    "source_crs": {
        "type": "GeographicCRS",
        "name": "GDA2020",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Geocentric Datum of Australia 2020",
            "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": 7843
        }
    },
    "target_crs": {
        "type": "CompoundCRS",
        "name": "GDA2020 + AVWS height",
        "components": [
            {
                "type": "GeographicCRS",
                "name": "GDA2020",
                "datum": {
                    "type": "GeodeticReferenceFrame",
                    "name": "Geocentric Datum of Australia 2020",
                    "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"
                        }
                    ]
                }
            },
            {
                "type": "VerticalCRS",
                "name": "AVWS height",
                "datum": {
                    "type": "VerticalReferenceFrame",
                    "name": "Australian Vertical Working Surface"
                },
                "coordinate_system": {
                    "subtype": "vertical",
                    "axis": [
                        {
                            "name": "Gravity-related height",
                            "abbreviation": "H",
                            "direction": "up",
                            "unit": "metre"
                        }
                    ]
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 9462
        }
    },
    "interpolation_crs": {
        "type": "GeographicCRS",
        "name": "GDA2020",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Geocentric Datum of Australia 2020",
            "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": 7844
        }
    },
    "method": {
        "name": "Geog3D to Geog2D+GravityRelatedHeight (AUSGeoidv2)",
        "id": {
            "authority": "EPSG",
            "code": 1083
        }
    },
    "parameters": [
        {
            "name": "Geoid (height correction) model file",
            "value": "AGQG_20201120.gsb",
            "id": {
                "authority": "EPSG",
                "code": 8666
            }
        }
    ],
    "accuracy": "0.1",
    "scope": "Derivation of gravity-related heights from GNSS observations.",
    "area": "Australia including Lord Howe Island, Macquarie Island, Ashmore and Cartier Islands, Christmas Island, Cocos (Keeling) Islands, Norfolk Island. All onshore and offshore.",
    "bbox": {
        "south_latitude": -60.55,
        "west_longitude": 93.41,
        "north_latitude": -8.47,
        "east_longitude": 173.34
    },
    "id": {
        "authority": "EPSG",
        "code": 9693
    },
    "remarks": "Reversible alternative to GDA2020 to AVWS height (1) (code 9692). AGQG is used to realise AVWS. Uncertainties (4-8 cm across mainland Australia) given in accompanying file AGQG_uncertainty_20201120.gsb."
}

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=au_ga_AGQG_20201120.tif"
	"multiplier=1"
	"step"
	"proj=unitconvert"
	"xy_in=rad"
	"xy_out=deg"
	"step"
	"proj=axisswap"
	"order=2,1"
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=au_ga_AGQG_20201120.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1">
	<Layer srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=au_ga_AGQG_20201120.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 9693, 'EPSG', 9693, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=au_ga_AGQG_20201120.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');