Unit: metre
Geodetic CRS: JSLD72 height
Datum: Japanese Standard Levelling Datum 1972
Data source: EPSG
Information source: Geospatial Information Authority of Japan (GSI) bulletin volume 51 of March 2004.
Revision date: 2013-12-16
Scope: Geodesy, engineering survey.
Remarks: Replaced by JGD2000 (vertical) (CRS code 6694) with effect from April 2002.
Area of use: Japan - onshore mainland - Hokkaido.
Coordinate system: Vertical CS. Axis: height (H). Orientation: up. UoM: m.
Center coordinates
43.44 142.78
Projected bounds:
41.34 139.7
45.54 145.87
WGS84 bounds:
139.7 41.34
145.87 45.54
Definition: OGC Well Known Text 2 (2019)
VERTCRS["JSLD72 height", VDATUM["Japanese Standard Levelling Datum 1972"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], USAGE[ SCOPE["Geodesy, engineering survey."], AREA["Japan - onshore mainland - Hokkaido."], BBOX[41.34,139.7,45.54,145.87]], ID["EPSG",6693]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "VerticalCRS", "name": "JSLD72 height", "datum": { "type": "VerticalReferenceFrame", "name": "Japanese Standard Levelling Datum 1972" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "scope": "Geodesy, engineering survey.", "area": "Japan - onshore mainland - Hokkaido.", "bbox": { "south_latitude": 41.34, "west_longitude": 139.7, "north_latitude": 45.54, "east_longitude": 145.87 }, "id": { "authority": "EPSG", "code": 6693 } }
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 ( 6693, 'EPSG', 6693, '+vunits=m +no_defs +type=crs', 'VERT_CS["JSLD72 height",VERT_DATUM["Japanese Standard Levelling Datum 1972",2005,AUTHORITY["EPSG","1129"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6693"]]');