Unit: metre
Geodetic CRS: VIVD09 height
Datum: Virgin Islands Vertical Datum of 2009
Data source: EPSG
Information source: National Geodetic Survey, http://www.ngs.noaa.gov
Revision date: 2019-09-17
Scope: Geodesy, engineering survey, topographic mapping.
Remarks: Replaces all earlier vertical CRSs on these islands.
Area of use: US Virgin Islands - onshore - St Croix, St John, and St Thomas.
Coordinate system: Vertical CS. Axis: height (H). Orientation: up. UoM: m.
Definition: OGC Well Known Text 2 (2019)
VERTCRS["VIVD09 height", VDATUM["Virgin Islands Vertical Datum of 2009"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], USAGE[ SCOPE["Geodesy, engineering survey, topographic mapping."], AREA["US Virgin Islands - onshore - St Croix, St John, and St Thomas."], BBOX[17.62,-65.09,18.44,-64.51]], ID["EPSG",6642]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalCRS", "name": "VIVD09 height", "datum": { "type": "VerticalReferenceFrame", "name": "Virgin Islands Vertical Datum of 2009" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "scope": "Geodesy, engineering survey, topographic mapping.", "area": "US Virgin Islands - onshore - St Croix, St John, and St Thomas.", "bbox": { "south_latitude": 17.62, "west_longitude": -65.09, "north_latitude": 18.44, "east_longitude": -64.51 }, "id": { "authority": "EPSG", "code": 6642 } }
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 ( 6642, 'EPSG', 6642, '+vunits=m +no_defs +type=crs', 'VERT_CS["VIVD09 height",VERT_DATUM["Virgin Islands Vertical Datum of 2009",2005,AUTHORITY["EPSG","1124"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6642"]]');