metre
Lowest Astronomical Tide Netherlands
EPSG
NSGI: Netherlands partnership of Kadaster, Rijkswaterstaat and Hydrographic Service, http://www.nsgi.nl/
2023-07-17
Hydrography and nautical charting.
53.55 4.87
51.32 2.53
55.77 7.21
2.53 51.32
7.21 55.77
Definition: OGC Well Known Text 2 (2019)
VERTCRS["LAT NL depth", VDATUM["Lowest Astronomical Tide Netherlands"], CS[vertical,1], AXIS["depth (D)",down, LENGTHUNIT["metre",1]], USAGE[ SCOPE["Hydrography and nautical charting."], AREA["Netherlands - offshore North Sea and nearshore."], BBOX[51.32,2.53,55.77,7.21]], ID["EPSG",9287]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalCRS", "name": "LAT NL depth", "datum": { "type": "VerticalReferenceFrame", "name": "Lowest Astronomical Tide Netherlands" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Depth", "abbreviation": "D", "direction": "down", "unit": "metre" } ] }, "scope": "Hydrography and nautical charting.", "area": "Netherlands - offshore North Sea and nearshore.", "bbox": { "south_latitude": 51.32, "west_longitude": 2.53, "north_latitude": 55.77, "east_longitude": 7.21 }, "id": { "authority": "EPSG", "code": 9287 } }
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 ( 9287, 'EPSG', 9287, '+vunits=m +no_defs +type=crs', 'VERT_CS["LAT NL depth",VERT_DATUM["Lowest Astronomical Tide Netherlands",2005,AUTHORITY["EPSG","1290"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Depth",DOWN],AUTHORITY["EPSG","9287"]]');