Unit: British foot (1936)
Geodetic CRS: Poolbeg height (ft(Br36))
Datum: Poolbeg
Data source: EPSG
Information source: Ordnance Survey of Ireland.
Revision date: 2017-10-16
Scope: Topographic mapping.
Remarks: Topographic mapping before 1956 in Northern Ireland and 1970 in the Republic of Ireland. Replaced by Belfast Lough height and Malin Head height (CRS codes 5732 and 5731).
Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
Coordinate system: Vertical CS. Axis: height (H). Orientation: up. UoM: ft(Br36).
Center coordinates
53.41 -7.95
Projected bounds:
51.39 -10.56
55.43 -5.34
WGS84 bounds:
-10.56 51.39
-5.34 55.43
Definition: OGC Well Known Text
VERT_CS["Poolbeg height (ft(Br36))", VERT_DATUM["Poolbeg",2005, AUTHORITY["EPSG","5152"]], UNIT["British foot (1936)",0.3048007491, AUTHORITY["EPSG","9095"]], AXIS["Gravity-related height",UP], AUTHORITY["EPSG","5754"]]
Definition: OGC Well Known Text 2 (2019)
VERTCRS["Poolbeg height (ft(Br36))", VDATUM["Poolbeg"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["British foot (1936)",0.3048007491]], USAGE[ SCOPE["Topographic mapping."], AREA["Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore."], BBOX[51.39,-10.56,55.43,-5.34]], ID["EPSG",5754]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalCRS", "name": "Poolbeg height (ft(Br36))", "datum": { "type": "VerticalReferenceFrame", "name": "Poolbeg" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "British foot (1936)", "conversion_factor": 0.3048007491 } } ] }, "scope": "Topographic mapping.", "area": "Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.", "bbox": { "south_latitude": 51.39, "west_longitude": -10.56, "north_latitude": 55.43, "east_longitude": -5.34 }, "id": { "authority": "EPSG", "code": 5754 } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+vto_meter=0.3048007491 +no_defs +type=crs"> <Layer srs="+vto_meter=0.3048007491 +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 5754, 'EPSG', 5754, '+vto_meter=0.3048007491 +no_defs +type=crs', 'VERT_CS["Poolbeg height (ft(Br36))",VERT_DATUM["Poolbeg",2005,AUTHORITY["EPSG","5152"]],UNIT["British foot (1936)",0.3048007491,AUTHORITY["EPSG","9095"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5754"]]');