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hotosm/nepal_flood_2026

Nepal Flood 2026, Upper Trishuli and Bhote Koshi Corridor Building inventory for the 26 August 2026 flash flood on the Nepal-China border. AOI: 1 km buffer around the Bhote Koshi and Trishuli river centrelines, 132.93 km² across Nuwakot and Rasuwa districts. Tasking Manager project 62904. Contents upperstream/buildings.geojson (+ .parquet): 13,663 footprints upperstream/building_density_h3_r8.geojson (+ .parquet): buildings per H3 res 8 cell (~0.7 km²)… See the full description on the dataset page: https://huggingface.co/datasets/hotosm/nepal_flood_2026.

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Nepal Flood 2026, Upper Trishuli and Bhote Koshi Corridor

Building inventory for the 26 August 2026 flash flood on the Nepal-China border.

AOI: 1 km buffer around the Bhote Koshi and Trishuli river centrelines, 132.93 km² across Nuwakot and Rasuwa districts. Tasking Manager project 62904.

Contents

  • —upperstream/buildings.geojson (+ .parquet): 13,663 footprints
  • —upperstream/building_density_h3_r8.geojson (+ .parquet): buildings per H3 res 8 cell (~0.7 km²)
  • —upperstream/building_density_h3_r10.geojson (+ .parquet): buildings per H3 res 10 cell (~0.015 km²)
  • —upperstream/viz/: density maps on ESRI World Imagery
  • —upperstream/aoi.geojson

Method

fAIr dinov3l_upernet_hot inference on ESRI World Imagery at zoom 18, watershed instance separation, edge-snapped regularisation. Damage layer will be added when open-license post-event imagery is available.

License

CC BY 4.0.