metre
EPSG
Geodesy, Cartography and Geoinformation Systems Directorate (GCGIS).
2022-12-12
Geodesy, engineering survey, topographic mapping.
Adopted 2010-07-29 as official Bulgarian reference datum through decree 153, replacing Baltic 1982 system (CRS code 5786).
Definition: OGC Well Known Text 2 (2019)
VERTCRS["BGS2005 height", VDATUM["Bulgarian Height System 2005"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], USAGE[ SCOPE["Geodesy, engineering survey, topographic mapping."], AREA["Bulgaria - onshore."], BBOX[41.24,22.36,44.23,28.68]], ID["EPSG",9669]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalCRS", "name": "BGS2005 height", "datum": { "type": "VerticalReferenceFrame", "name": "Bulgarian Height System 2005" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "scope": "Geodesy, engineering survey, topographic mapping.", "area": "Bulgaria - onshore.", "bbox": { "south_latitude": 41.24, "west_longitude": 22.36, "north_latitude": 44.23, "east_longitude": 28.68 }, "id": { "authority": "EPSG", "code": 9669 } }
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 ( 9669, 'EPSG', 9669, '+vunits=m +no_defs +type=crs', 'VERT_CS["BGS2005 height",VERT_DATUM["Bulgarian Height System 2005",2005,AUTHORITY["EPSG","1300"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","9669"]]');