Geodesy, engineering survey.
Definition: OGC Well Known Text 2 (2019)
VERTCRS["Yellow Sea", VDATUM["Yellow Sea 1956"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], USAGE[ SCOPE["Geodesy, engineering survey."], AREA["China - onshore and offshore."], BBOX[16.7,73.62,53.56,134.77]], ID["EPSG",5704]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalCRS", "name": "Yellow Sea", "datum": { "type": "VerticalReferenceFrame", "name": "Yellow Sea 1956" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "scope": "Geodesy, engineering survey.", "area": "China - onshore and offshore.", "bbox": { "south_latitude": 16.7, "west_longitude": 73.62, "north_latitude": 53.56, "east_longitude": 134.77 }, "id": { "authority": "EPSG", "code": 5704 } }
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 ( 5704, 'EPSG', 5704, '+vunits=m +no_defs +type=crs', 'VERT_CS["Yellow Sea",VERT_DATUM["Yellow Sea 1956",2005,AUTHORITY["EPSG","5104"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5704"]]');