EPSG:5831

Instantaneous Water Level depth

Attributes

Unit: metre

Geodetic CRS: Instantaneous Water Level height

Datum: Instantaneous Water Level

Data source: EPSG

Information source: IOGP

Revision date: 2021-04-20

Scope: Hydrography, drilling, marine geophysics.

Remarks: Depth relative to instantaneous water level uncorrected for tide. Not specific to any location or epoch.

Area of use: World.

Coordinate system: Vertical CS. Axis: depth (D). Orientation: down. UoM: m.

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SimpleMap

Center coordinates
0.0 0.0

Projected bounds:
-90.0 -180.0
90.0 180.0

WGS84 bounds:
-180.0 -90.0
180.0 90.0

World.
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Definition: OGC Well Known Text

VERT_CS["Instantaneous Water Level depth",
    VERT_DATUM["Instantaneous Water Level",2005,
        AUTHORITY["EPSG","5113"]],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["Depth",DOWN],
    AUTHORITY["EPSG","5831"]]

Definition: OGC Well Known Text 2 (2019)

VERTCRS["Instantaneous Water Level depth",
    VDATUM["Instantaneous Water Level"],
    CS[vertical,1],
        AXIS["depth (D)",down,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Hydrography, drilling, marine geophysics."],
        AREA["World."],
        BBOX[-90,-180,90,180]],
    ID["EPSG",5831]]

Definition: ESRI Well Known Text

VERTCS["Instantaneous_Water_Level_Depth",
    VDATUM["Sea_Level"],
    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:5831","+vunits=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "VerticalCRS",
    "name": "Instantaneous Water Level depth",
    "datum": {
        "type": "VerticalReferenceFrame",
        "name": "Instantaneous Water Level"
    },
    "coordinate_system": {
        "subtype": "vertical",
        "axis": [
            {
                "name": "Depth",
                "abbreviation": "D",
                "direction": "down",
                "unit": "metre"
            }
        ]
    },
    "scope": "Hydrography, drilling, marine geophysics.",
    "area": "World.",
    "bbox": {
        "south_latitude": -90,
        "west_longitude": -180,
        "north_latitude": 90,
        "east_longitude": 180
    },
    "id": {
        "authority": "EPSG",
        "code": 5831
    }
}

Definition: GeoServer

5831=VERT_CS["Instantaneous Water Level depth",VERT_DATUM["Instantaneous Water Level",2005,AUTHORITY["EPSG","5113"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Depth",DOWN],AUTHORITY["EPSG","5831"]]

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 ( 5831, 'EPSG', 5831, '+vunits=m +no_defs +type=crs', 'VERT_CS["Instantaneous Water Level depth",VERT_DATUM["Instantaneous Water Level",2005,AUTHORITY["EPSG","5113"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Depth",DOWN],AUTHORITY["EPSG","5831"]]');