EPSG:5796

Lagos 1955 height

Attributes

Unit: metre

Geodetic CRS: Lagos 1955 height

Datum: Lagos 1955

Data source: EPSG

Information source: Ebong et al, AVN International, 1991.

Revision date: 2008-03-14

Scope: Geodesy, engineering survey, topographic mapping.

Area of use: Nigeria - onshore.

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

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SimpleMap

Center coordinates
9.06 8.67

Projected bounds:
4.22 2.69
13.9 14.65

WGS84 bounds:
2.69 4.22
14.65 13.9

Nigeria - onshore.
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Definition: OGC Well Known Text

VERT_CS["Lagos 1955 height",
    VERT_DATUM["Lagos 1955",2005,
        AUTHORITY["EPSG","5194"]],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["Gravity-related height",UP],
    AUTHORITY["EPSG","5796"]]

Definition: OGC Well Known Text 2 (2019)

VERTCRS["Lagos 1955 height",
    VDATUM["Lagos 1955"],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Geodesy, engineering survey, topographic mapping."],
        AREA["Nigeria - onshore."],
        BBOX[4.22,2.69,13.9,14.65]],
    ID["EPSG",5796]]

Definition: ESRI Well Known Text

VERTCS["Lagos_1955",
    VDATUM["Lagos_1955"],
    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:5796","+vunits=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "VerticalCRS",
    "name": "Lagos 1955 height",
    "datum": {
        "type": "VerticalReferenceFrame",
        "name": "Lagos 1955"
    },
    "coordinate_system": {
        "subtype": "vertical",
        "axis": [
            {
                "name": "Gravity-related height",
                "abbreviation": "H",
                "direction": "up",
                "unit": "metre"
            }
        ]
    },
    "scope": "Geodesy, engineering survey, topographic mapping.",
    "area": "Nigeria - onshore.",
    "bbox": {
        "south_latitude": 4.22,
        "west_longitude": 2.69,
        "north_latitude": 13.9,
        "east_longitude": 14.65
    },
    "id": {
        "authority": "EPSG",
        "code": 5796
    }
}

Definition: GeoServer

5796=VERT_CS["Lagos 1955 height",VERT_DATUM["Lagos 1955",2005,AUTHORITY["EPSG","5194"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5796"]]

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 ( 5796, 'EPSG', 5796, '+vunits=m +no_defs +type=crs', 'VERT_CS["Lagos 1955 height",VERT_DATUM["Lagos 1955",2005,AUTHORITY["EPSG","5194"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5796"]]');