Nepal Flash Flood 2026

Completed catalogue assessment

Eligibility decision: Include · Included Resource
Assessment date: 28 September 2026
Decision reason: The original Microsoft/HDX description reports intersecting Overture building footprints and IHME population estimates within an interpreted affected area: 4,977 footprints and a population estimate of 10,203.8. It is exposure estimation, not building-damage grading or a count of confirmed affected people. Both native URLs are listed; TIFF access was checked by header only and the GPKG exceeded the bounded download limit.
Metadata corrections: {}

Catalogue identifier: res-508a5104-de03-5fa7-9422-0585910a9e70
Persistent identifier: 6451fa3d-61bf-4385-8b18-3026e0b34958
Resource version: HDX metadata state observed 3 September 2026
Publication date: 27 August 2026
Last updated: 28 August 2026
Metadata reviewed: 28 September 2026
Language: English
Geographic coverage: Provider-identified event impact area in Nepal; the HDX description states an area of 37 km².
Bounding box (WGS 84): [84.91091661,27.72381216,85.63531806,28.4306037]
Temporal coverage: 27 August 2026; Event Specific
Themes: Buildings, Population, Exposure, Damage Analysis

Production method: The provider overlaid Overture building footprints and IHME 2026 population estimates on the UNOSAT damage-analysis area.
Provenance: Produced by Microsoft AI for Good Lab and published through HDX; upstream sources stated by the provider are Overture Maps, IHME 2026 population estimates, and UNOSAT damage analysis.
Validation: Unclear
Uncertainty: No separate validation or uncertainty statement is supplied. Results inherit the coverage, classification, and temporal limitations of the UNOSAT impact area, Overture footprints, and IHME population surface.
Limitations: The stated results apply to the provider-identified 37 km² impact area. The 157.1 MiB building GeoPackage was reviewed from authoritative metadata only because full retrieval was unnecessary; the companion population raster was structurally inspected.

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