metre
EPSG
National Geographic Institute of Spain (IGN), http://www.ign.es
2020-06-27
Geodesy, engineering survey, topographic mapping.
27.95 -15.6
27.68 -15.88
28.23 -15.31
-15.88 27.68
-15.31 28.23
Definition: OGC Well Known Text 2 (2019)
VERTCRS["Gran Canaria height", VDATUM["Gran Canaria"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], USAGE[ SCOPE["Geodesy, engineering survey, topographic mapping."], AREA["Spain - Canary Islands - Gran Canaria onshore."], BBOX[27.68,-15.88,28.23,-15.31]], ID["EPSG",9397]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalCRS", "name": "Gran Canaria height", "datum": { "type": "VerticalReferenceFrame", "name": "Gran Canaria" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "scope": "Geodesy, engineering survey, topographic mapping.", "area": "Spain - Canary Islands - Gran Canaria onshore.", "bbox": { "south_latitude": 27.68, "west_longitude": -15.88, "north_latitude": 28.23, "east_longitude": -15.31 }, "id": { "authority": "EPSG", "code": 9397 } }
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 ( 9397, 'EPSG', 9397, '+vunits=m +no_defs +type=crs', 'VERT_CS["Gran Canaria height",VERT_DATUM["Gran Canaria",2005,AUTHORITY["EPSG","1280"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","9397"]]');