Topographic mapping (large scale).
Malin Head height (CRS code 5731) used for medium and small scale topographic mapping.
54.66 -6.76
53.96 -8.18
55.36 -5.34
-8.18 53.96
-5.34 55.36
Definition: OGC Well Known Text 2 (2019)
VERTCRS["Belfast height", VDATUM["Belfast Lough"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], USAGE[ SCOPE["Topographic mapping (large scale)."], AREA["United Kingdom (UK) - Northern Ireland (Ulster) - onshore."], BBOX[53.96,-8.18,55.36,-5.34]], ID["EPSG",5732]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalCRS", "name": "Belfast height", "datum": { "type": "VerticalReferenceFrame", "name": "Belfast Lough" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "scope": "Topographic mapping (large scale).", "area": "United Kingdom (UK) - Northern Ireland (Ulster) - onshore.", "bbox": { "south_latitude": 53.96, "west_longitude": -8.18, "north_latitude": 55.36, "east_longitude": -5.34 }, "id": { "authority": "EPSG", "code": 5732 } }
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 ( 5732, 'EPSG', 5732, '+vunits=m +no_defs +type=crs', 'VERT_CS["Belfast height",VERT_DATUM["Belfast Lough",2005,AUTHORITY["EPSG","5131"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5732"]]');