Data source: EPSG
Information source: Geospatial Information Authority of Japan (GSI) bulletin volume 51 of March 2004.
Revision date: 2014-05-01
Scope: Geodesy, topographic mapping.
Remarks: Normal-orthometric heights. Replaces JSLD49. Replaced by JGD2000 (vertical) (datum code 1130) from April 2002.
Area of use: Japan - onshore mainland - Honshu, Shikoku, Kyushu.
Definition: OGC Well Known Text
VERT_DATUM["Japanese Standard Levelling Datum 1969",2005, AUTHORITY["EPSG","5122"]]
Definition: OGC Well Known Text 2 (2019)
VDATUM["Japanese Standard Levelling Datum 1969", ID["EPSG",5122]]
Definition: ESRI Well Known Text
VDATUM["Japanese_Standard_Levelling_Datum_1969"]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json", "type": "VerticalReferenceFrame", "name": "Japanese Standard Levelling Datum 1969", "scope": "Geodesy, topographic mapping.", "area": "Japan - onshore mainland - Honshu, Shikoku, Kyushu.", "bbox": { "south_latitude": 30.94, "west_longitude": 129.3, "north_latitude": 41.58, "east_longitude": 142.14 }, "id": { "authority": "EPSG", "code": 5122 } }