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.gov website belongs to an official
government organization in the United States.
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connected to the .gov website. Share sensitive
information only on official, secure websites.
Sources of data used in this study.
| SN | Data layer | Source | Spatial resolution (m) | Year |
|---|---|---|---|---|
| 1 | Topographic map | Army Map Service, U.S. Army, Washington | Scale 1:250,000 m (based on Arial photo) | 1920–1940 |
| 2 | Landsat 1 TM | Earth Explorer (USGS) | 60 m | 1975–1976 |
| 3 | Landsat 5 Surface Reflectance Tier 1 | GEE dataset (USGS) | 30 m | 2000 |
| 4 | Landsat 8 Surface Reflectance GEE dataset | GEE dataset (USGS) | 30 m | 2020 |
| 5 | Administrative boundary | Department of Survey, Nepal | Scale 1:25,000 (based on Arial photo) | 1996–1998 |
