Identity and coverage
- Catalogue identifier
- res-4a46f9c3-b6f8-48f2-a896-1d373e7cae5f
- Persistent identifier
- 10.31223/x56793
- Resource version
- Version 2
- Publication date
- 1 September 2026
- Last updated
- 1 September 2026
- Metadata reviewed
- 4 September 2026
- Language
- English
- Geographic coverage
- Northern flank of Langtang Lirung and Gyirong border port, then the Bhote Koshi–Trishuli–Narayani corridor across China, Nepal, and India.
- Bounding box (WGS 84)
- Not stated
- Temporal coverage
- 26 August 2026 to 31 August 2026; Event And Post Event Analysis With Historical Context
- Themes
- Ice–Rock Avalanche, Debris Flow, Barrier Lakes, Flood Propagation, Remote Sensing, Transboundary Hazards
Method and provenance
- Production method
- Combines open seismic records, Sentinel-1 SAR backscatter change, emergency mapping, official reports, river-gauge timing, and ERA5-Land temperature context to reconstruct the source-to-downstream cascade.
- Provenance
- Authored by Donghua Xu and deposited in EarthArXiv; the repository record, Crossref metadata, version statement, and current PDF establish the DOI, version, dates, authorship, and licence.
- Validation
- Not Peer Reviewed
- Uncertainty
- Open data cannot distinguish an avalanche-emplaced debris flow from rapid debris-dam release as the initial wave; the reported volume-equivalent scale assumes a one-to-five-metre affected-layer thickness and is not a source-volume estimate.
- Limitations
- No public post-event high-resolution elevation model was available; monsoon cloud prevented post-event optical analysis, post-event SAR coverage was limited to one acquisition, and seasonal surface change could not be fully excluded.
Access and reuse
- Access
- Direct Open; open access route
- Licence
- CC-BY-4.0; licence evidence
- Redistribution
- Permitted Under Stated Licence
- Catalogue status
- Reviewed
- Provider page
- Open authoritative resource page
Assets
The 26 August 2026 Langtang Lirung ice–rock avalanche and its transboundary cascade: a multi-source observational reconstruction in the Bhote Koshi basin
Asset bounding box not stated. Parent resource coverage: Northern flank of Langtang Lirung and Gyirong border port, then the Bhote Koshi–Trishuli–Narayani corridor across China, Nepal, and India.
Open PDF Metadata assessed