GeoTIFF DEM converted from 10m / 5m / 1m resolution DEM by Geospatial Information Authority of Japan (GSI). Approval for Reproduction pursuant to the Survey Act, granted by the Director-General of the Geospatial Information Authority of Japan (R8JHf51).
When reproducing this product in order to make it available to the general public, approval from the Director-General of the Geospatial Information Authority of Japan must be obtained.
Digital Elevation Model (DEM) data for Japan, converted to GeoTIFF from the Geospatial Information Authority of Japan's (GSI, 国土地理院) 基盤地図情報 (Fundamental Geospatial Data) DEM distribution. Available at three resolutions: 10m, 5m, and 1m.
Published by the UN Smart Maps Group. Generated by
optgeo/japan-geotiff-dem,
an open pipeline that converts GSI's zipped GML DEM tiles into GeoTIFF
— see that repository for the code, and for exactly how each file was
produced.
One GeoTIFF per GSI source mesh, grouped by resolution:
10/ — 10m resolution DEM5/ — 5m resolution DEM1/ — 1m resolution DEMFormat: GeoTIFF, single-band FLOAT32 elevation (meters), EPSG:6668 (JGD2011 geographic), ZSTD-max compressed. Filenames follow GSI's own mesh-code naming directly, so any given file's coverage and survey vintage is traceable back to GSI's own 基盤地図情報 catalog.
Coverage grows incrementally and unevenly across resolutions and prefectures — this file won't always describe the exact current extent; browse this product's file listing for what's actually present right now. In particular, the 1m tier is being updated prefecture by prefecture as GSI adds newer aerial-laser survey coverage, so different meshes can carry different survey dates even within the same prefecture.
Source data: Geospatial Information Authority of Japan (国土地理院), 基盤地図情報 DEM.
測量法に基づく国土地理院長承認（複製）R8JHf51
不特定多数の者が提供を受けることができる状態に置く措置をとるために本製品を複製する場合には、国土地理院の長の承認を得なければなりません。
Approval for Reproduction pursuant to the Survey Act, granted by the Director-General of the Geospatial Information Authority of Japan (R8JHf51).
When reproducing this product in order to make it available to the general public, approval from the Director-General of the Geospatial Information Authority of Japan must be obtained.
File an issue at
https://github.com/optgeo/japan-geotiff-dem/issues, or see that
repository's README.md for other contact paths.