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Data Licence

Sources and licences of third-party data

Last updated: 10 September 2026

TerraWatch and the figures on this site use the third-party data and analysis products listed below. Rights remain with each provider, and the data is used under each provider's licence terms.

Satellite analysis products

  • UNOSAT (the satellite centre of the United Nations Institute for Training and Research, UNITAR) — Creative Commons Attribution 3.0 IGO (CC BY 3.0 IGO)
  • Copernicus Emergency Management Service — © European Union (free to use with attribution)
  • Sentinel Asia (member agencies including JAXA with ALOS-2, IWM, TASA, MBRSC and EOS-RS) — used for disaster-management purposes with each agency's credit; display only in TerraWatch, with no download or redistribution

Baseline open data

  • Copernicus DEM GLO-30, a 30 m digital elevation model (DEM) — © ESA / Airbus (free to use with attribution)
  • WorldPop — CC BY 4.0
  • Google Open Buildings — CC BY 4.0 / Open Database License v1.0 (ODbL)
  • ESA WorldCover — CC BY 4.0 (© ESA WorldCover project)
  • OpenStreetMap, including extracts from the Humanitarian OpenStreetMap Team (HOT) — © OpenStreetMap contributors, ODbL
  • Esri Land Cover — Esri / Impact Observatory (from Sentinel-2 imagery)
  • Administrative boundaries from the Common Operational Datasets (COD-AB) — national agencies and the UN Office for the Coordination of Humanitarian Affairs (OCHA)
  • HydroSHEDS (HydroRIVERS, HydroBASINS) — CC BY 4.0

Basemaps

  • Satellite imagery — Esri World Imagery (© Esri, Maxar, Earthstar Geographics); visible in the background of the app screens on this site
  • Fallback — Sentinel-2 cloudless (© EOX IT Services, containing Copernicus Sentinel data)

Handling in TerraWatch

Every layer keeps its provider, its acquisition date and its attribution. A layer whose terms do not permit redistribution is marked display only, and nobody but an administrator can download it.

Reusing figures

When you reproduce a figure in your own material, keep the attribution shown in the figure or its footnote. If you are unsure whether something may be redistributed, ask us at ocgsatellitepf@gmail.com.

This English text is provided for convenience. The Japanese version prevails.