metre
EPSG
General Directorate of Land, http://www.dgterritorio.pt/
2013-03-15
Geodesy, engineering survey, topographic mapping.
39.05 -28.0
38.97 -28.13
39.14 -27.88
-28.13 38.97
-27.88 39.14
Definition: OGC Well Known Text 2 (2019)
VERTCRS["Santa Cruz da Graciosa height", VDATUM["Santa Cruz da Graciosa"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], USAGE[ SCOPE["Geodesy, engineering survey, topographic mapping."], AREA["Portugal - central Azores - Graciosa island onshore."], BBOX[38.97,-28.13,39.14,-27.88]], ID["EPSG",6183]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalCRS", "name": "Santa Cruz da Graciosa height", "datum": { "type": "VerticalReferenceFrame", "name": "Santa Cruz da Graciosa" }, "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 - Graciosa island onshore.", "bbox": { "south_latitude": 38.97, "west_longitude": -28.13, "north_latitude": 39.14, "east_longitude": -27.88 }, "id": { "authority": "EPSG", "code": 6183 } }
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 ( 6183, 'EPSG', 6183, '+vunits=m +no_defs +type=crs', 'VERT_CS["Santa Cruz da Graciosa height",VERT_DATUM["Santa Cruz da Graciosa",2005,AUTHORITY["EPSG","1106"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6183"]]');