EPSG:6181

Horta height

Attributes

Unit: metre

Geodetic CRS: Horta height

Datum: Horta

Data source: EPSG

Information source: General Directorate of Land, http://www.dgterritorio.pt/

Revision date: 2013-03-15

Scope: Geodesy, engineering survey, topographic mapping.

Area of use: Portugal - central Azores - Faial island onshore.

Coordinate system: Vertical CS. Axis: height (H). Orientation: up. UoM: m.

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SimpleMap

Center coordinates
38.58 -28.72

Projected bounds:
38.46 -28.9
38.7 -28.54

WGS84 bounds:
-28.9 38.46
-28.54 38.7

Portugal - central Azores - Faial island onshore.
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Definition: OGC Well Known Text

VERT_CS["Horta height",
    VERT_DATUM["Horta",2005,
        AUTHORITY["EPSG","1104"]],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["Gravity-related height",UP],
    AUTHORITY["EPSG","6181"]]

Definition: OGC Well Known Text 2 (2019)

VERTCRS["Horta height",
    VDATUM["Horta"],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Geodesy, engineering survey, topographic mapping."],
        AREA["Portugal - central Azores - Faial island onshore."],
        BBOX[38.46,-28.9,38.7,-28.54]],
    ID["EPSG",6181]]

Definition: ESRI Well Known Text

VERTCS["Horta_height",
    VDATUM["Horta"],
    PARAMETER["Vertical_Shift",0.0],
    PARAMETER["Direction",1.0],
    UNIT["Meter",1.0]]

Definition: PROJ.4

+vunits=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:6181","+vunits=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "VerticalCRS",
    "name": "Horta height",
    "datum": {
        "type": "VerticalReferenceFrame",
        "name": "Horta"
    },
    "coordinate_system": {
        "subtype": "vertical",
        "axis": [
            {
                "name": "Gravity-related height",
                "abbreviation": "H",
                "direction": "up",
                "unit": "metre"
            }
        ]
    },
    "scope": "Geodesy, engineering survey, topographic mapping.",
    "area": "Portugal - central Azores - Faial island onshore.",
    "bbox": {
        "south_latitude": 38.46,
        "west_longitude": -28.9,
        "north_latitude": 38.7,
        "east_longitude": -28.54
    },
    "id": {
        "authority": "EPSG",
        "code": 6181
    }
}

Definition: GeoServer

6181=VERT_CS["Horta height",VERT_DATUM["Horta",2005,AUTHORITY["EPSG","1104"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6181"]]

Definition: MapServer - MAPfile

PROJECTION
	"vunits=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+vunits=m +no_defs +type=crs">
	<Layer srs="+vunits=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 6181, 'EPSG', 6181, '+vunits=m +no_defs +type=crs', 'VERT_CS["Horta height",VERT_DATUM["Horta",2005,AUTHORITY["EPSG","1104"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6181"]]');