Mudflow/Rockflow Impact Assessment in Rasuwa & Nuwakot Districts, Bagmati Province, Nepal as of 26–27 August 2026

Completed catalogue assessment

Eligibility decision: Include · Included Resource
Assessment date: 28 September 2026
Decision reason: The original UNOSAT/HDX product reports a preliminary satellite impact assessment for Rasuwa and Nuwakot. Exposure and possibly affected road length are not confirmed losses. The native GDB is shared byte-for-byte with products 4256, 4257, 4258 and 4260, so count it once and preserve product associations separately.
Metadata corrections: {}

Catalogue identifier: res-d501e449-94fb-5fb4-8144-aebbc9c6009a
Persistent identifier: c8d1c8d2-b780-41ce-9cbf-5cae2fd11543
Resource version: UNOSAT code FL20260826NPL; HDX metadata state observed 3 September 2026
Publication date: 29 August 2026
Last updated: 1 September 2026
Metadata reviewed: 28 September 2026
Language: English
Geographic coverage: Approximately 350 km² analysed in Rasuwa and Nuwakot Districts, Bagmati Province.
Bounding box (WGS 84): [84.348763379,27.666659908,85.534776487,28.346078604]
Temporal coverage: 26 August 2026 to 28 August 2026; Event Specific
Themes: Mudflow And Rockflow Extent, Roads, Buildings, Exposure, Earth Observation

Production method: UNOSAT mapped cumulative mudflow and rockflow extent from PlanetScope imagery acquired 26 August and Sentinel-2 imagery acquired 27 August 2026, then assessed potentially affected roads and buildings against the mapped area.
Provenance: Produced by UNOSAT under code FL20260826NPL and published through HDX. The current File Geodatabase asset is byte-identical to the archive exposed by three related UNOSAT records and contains the complete multi-product event geodatabase.
Validation: Not Validated
Uncertainty: UNOSAT identifies the analysis as preliminary and not field validated. Interpretation depends on source-image characteristics, and exposure indicates intersection with or proximity to mapped affected areas rather than confirmed damage.
Limitations: The assessment covers approximately 350 km² and is not a field-verified inventory. Minor structural damage may not be visible in imagery.

Access: Direct Open; open access route
Licence: Creative Commons Attribution Share-Alike (CC BY-SA; version not specified); licence evidence
Redistribution: Permitted Under Stated Package Licence
Catalogue status: Included
Provider page: Open authoritative resource page