Japan - Subnational Administrative Boundaries

  • 1600+ Downloads
  • This dataset updates: Every year

Downloads

Related Showcases

There are no showcases for this dataset.

Source Prefecture governments
Contributor
Date of Dataset December 17, 2019-November 29, 2021
Updated 19 December 2019
Expected Update Frequency Every year
Location
Visibility
Public
License
Methodology

Adapted from prefecture sources and P-coded by OCHA. Feature name translations by OCHA. Hundreds of polygons in the source files covering parts of the surrounding water were removed by OCHA. The administrative level 2 (city, town, or village) shapefile was created by dissolving a working set of overlapping administrative level 3 shapefiles to make level 2 and then consolidated with the ArcGIS ‘integrate’ command (100 m tolerance) that makes new compromise boundaries where input features disagree in order to establish topological integrity.

Caveats / Comments

Because of the methodology many of the administrative level 2 boundaries will be as much as 100 m from the positions in the source shapefile.

Tags
File Format