EPSG:9371

Vienna height to GHA height (1)

Attributes

Geodetic CRS: Vienna height

Datum: Wiener Null

Data source: EPSG

Information source: Bundesamt für Eich- und Vermessungswesen (BEV).

Revision date: 2020-04-15

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

Remarks: Defines Wiener Null surface. GHA vertical reference surface is 156.68m below Wiener Null surface.

Method: Vertical Offset

Area of use: Austria - Vienna city state.

Description: (0,)

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Austria - Vienna city state.

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Definition: OGC Well Known Text 2 (2019)

COORDINATEOPERATION["Vienna height to GHA height (1)",
    VERSION["BEV-Aut Wien"],
    SOURCECRS[
        VERTCRS["Vienna height",
            VDATUM["Wiener Null"],
            CS[vertical,1],
                AXIS["gravity-related height (H)",up,
                    LENGTHUNIT["metre",1]],
            ID["EPSG",8881]]],
    TARGETCRS[
        VERTCRS["GHA height",
            VDATUM["Gebrauchshohen ADRIA"],
            CS[vertical,1],
                AXIS["gravity-related height (H)",up,
                    LENGTHUNIT["metre",1]],
            ID["EPSG",5778]]],
    METHOD["Vertical Offset",
        ID["EPSG",9616]],
    PARAMETER["Vertical Offset",156.68,
        LENGTHUNIT["metre",1],
        ID["EPSG",8603]],
    OPERATIONACCURACY[0.0],
    USAGE[
        SCOPE["Change of height to a different vertical reference surface."],
        AREA["Austria - Vienna city state."],
        BBOX[48.12,16.18,48.34,16.59]],
    ID["EPSG",9371],
    REMARK["Defines Wiener Null surface. GHA vertical reference surface is 156.68m below Wiener Null surface."]]

Definition: PROJ.4

+proj=geogoffset +dh=156.68

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:9371","+proj=geogoffset +dh=156.68");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Transformation",
    "name": "Vienna height to GHA height (1)",
    "source_crs": {
        "type": "VerticalCRS",
        "name": "Vienna height",
        "datum": {
            "type": "VerticalReferenceFrame",
            "name": "Wiener Null"
        },
        "coordinate_system": {
            "subtype": "vertical",
            "axis": [
                {
                    "name": "Gravity-related height",
                    "abbreviation": "H",
                    "direction": "up",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 8881
        }
    },
    "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
        }
    },
    "method": {
        "name": "Vertical Offset",
        "id": {
            "authority": "EPSG",
            "code": 9616
        }
    },
    "parameters": [
        {
            "name": "Vertical Offset",
            "value": 156.68,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8603
            }
        }
    ],
    "accuracy": "0.0",
    "scope": "Change of height to a different vertical reference surface.",
    "area": "Austria - Vienna city state.",
    "bbox": {
        "south_latitude": 48.12,
        "west_longitude": 16.18,
        "north_latitude": 48.34,
        "east_longitude": 16.59
    },
    "id": {
        "authority": "EPSG",
        "code": 9371
    },
    "remarks": "Defines Wiener Null surface. GHA vertical reference surface is 156.68m below Wiener Null surface."
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=geogoffset"
	"dh=156.68"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=geogoffset +dh=156.68">
	<Layer srs="+proj=geogoffset +dh=156.68">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 9371, 'EPSG', 9371, '+proj=geogoffset +dh=156.68', 'None');