Very-high-resolution optical imagery reveals key clues to the Langtang Lirung ice–rock avalanche

Preprint interpreting morphology in 11 very-high-resolution optical images acquired between 18 March 2020 and 27 August 2026 and relating observed changes to competing interpretations of source failure.

Status
Included
Provider
EarthArXiv / University of Florence
Resource type
Scholarly Preprint
Evidence class
Expert Assessment

Completed catalogue assessment

Eligibility decision
Include · Include
Assessment date
28 September 2026
Decision reason
Original source identity and relevant content established; exact unsupported metadata replaced and evidential limits recorded.
Metadata corrections
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View the complete assessment and exclusion ledger.

Identity and coverage

Catalogue identifier
res-75af7635-30cb-571b-9e64-b675ebe93e58
Persistent identifier
10.31223/X5WB9B
Resource version
1
Publication date
14 September 2026
Last updated
14 September 2026
Metadata reviewed
28 September 2026
Language
English
Geographic coverage
Langtang Lirung source cirque, Rasuwa District, Nepal
Bounding box (WGS 84)
Not stated
Temporal coverage
18 March 2020 to 27 August 2026; Pre Event And Post Event Analysis
Themes
Forensic Analysis, High-Resolution Optical Imagery, Glacier Stability, Bedrock Fatigue, Landslide Precursor, Geomorphology

Method and provenance

Production method
Visual geomorphological and structural interpretation of multitemporal optical imagery; not pixel-tracking displacement measurement or an eleven-pair stereo DEM time series.
Provenance
Authored by researchers at the Department of Earth Sciences, University of Florence, Italy, and published as an open preprint on EarthArXiv.
Validation
Not Peer Reviewed
Uncertainty
Stable apparent glacier margins and interpreted bedrock structures support the authors' interpretation but do not independently establish the failure cause. No subpixel displacement precision is reported by the review.
Limitations
The public asset is the preprint. Underlying commercial scenes are not thereby an open image archive; availability is subject to provider restrictions and the authors' stated request conditions.

Access and reuse

Access
Direct Open; open access route
Licence
CC-BY-NC-ND-4.0; licence evidence
Redistribution
Permitted Under Stated Licence
Catalogue status
Included

Assets

1 asset

Authoritative metadata sources

Spatial extent

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