EPSG
National Geographic Institute of Spain (IGN), http://www.ign.es
2023-06-30
Geodesy, engineering survey, topographic mapping.
Orthometric heights.
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalReferenceFrame", "name": "Alboran", "scope": "Geodesy, engineering survey, topographic mapping.", "area": "Spain - Alboran island - onshore.", "bbox": { "south_latitude": 35.88, "west_longitude": -3.1, "north_latitude": 36, "east_longitude": -2.96 }, "id": { "authority": "EPSG", "code": 1363 } }