EPSG:8904 - TWVD 2001 height

Attributes

Unit

metre

Scope

Geodesy, engineering survey, topographic mapping.

Remarks

None

Area of use

Taiwan, Republic of China - onshore - Taiwan Island.

Data Source: EPSG v11.022 2024-11-05

Datum: Taiwan Vertical Datum 2001

Coordinate System: vertical

Projection: Undefined

Geodetic CRS: Undefined

Export

VERTCRS["TWVD 2001 height",
    VDATUM["Taiwan Vertical Datum 2001"],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Geodesy, engineering survey, topographic mapping."],
        AREA["Taiwan, Republic of China - onshore - Taiwan Island."],
        BBOX[21.87,119.99,25.34,122.06]],
    ID["EPSG",8904]]
{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "VerticalCRS",
  "name": "TWVD 2001 height",
  "datum": {
    "type": "VerticalReferenceFrame",
    "name": "Taiwan Vertical Datum 2001"
  },
  "coordinate_system": {
    "subtype": "vertical",
    "axis": [
      {
        "name": "Gravity-related height",
        "abbreviation": "H",
        "direction": "up",
        "unit": "metre"
      }
    ]
  },
  "scope": "Geodesy, engineering survey, topographic mapping.",
  "area": "Taiwan, Republic of China - onshore - Taiwan Island.",
  "bbox": {
    "south_latitude": 21.87,
    "west_longitude": 119.99,
    "north_latitude": 25.34,
    "east_longitude": 122.06
  },
  "id": {
    "authority": "EPSG",
    "code": 8904
  }
}
{'crs_wkt': 'VERTCRS["TWVD 2001 height",VDATUM["Taiwan Vertical Datum '
            '2001"],CS[vertical,1],AXIS["gravity-related height '
            '(H)",up,LENGTHUNIT["metre",1]],USAGE[SCOPE["Geodesy, engineering '
            'survey, topographic mapping."],AREA["Taiwan, Republic of China - '
            'onshore - Taiwan '
            'Island."],BBOX[21.87,119.99,25.34,122.06]],ID["EPSG",8904]]',
 'geopotential_datum_name': 'Taiwan Vertical Datum 2001'}