Satellite-Detected Newly Formed Barrier Lakes Following an Ice-Rock Avalanche in Rasuwa District, Nepal, as of 28 August 2026

Identity and coverage

Catalogue identifier

res-ba8729bd-4cd4-583b-9a71-fd0e898c2108

Persistent identifier

a94119fd-3bdc-4b3e-b1a9-3ebf3126726b

Resource version

UNOSAT code FL20260826NPL; HDX metadata state observed 3 September 2026

Publication date

1 September 2026

Last updated

3 September 2026

Metadata reviewed

3 September 2026

Language

English

Geographic coverage

Source-area river corridor near the Nepal–China border in Rasuwa District.

Bounding box (WGS 84)

[85.476671589, 28.289749285, 85.513339926, 28.334163695]View in map

Temporal coverage

28 August 2026 to 31 August 2026; Post Event Monitoring

Themes

Barrier Lakes, Ice-Rock Avalanche, Cryosphere, Geomorphology, Earth Observation

Method and provenance

Production method

UNOSAT identified and measured two newly formed barrier lakes in CARTOSAT-3 imagery acquired 28 August 2026 following the ice-rock avalanche.

Provenance

Produced by UNOSAT under code FL20260826NPL and published through HDX. Relevant point and polygon layers occur in the shared multi-product event File Geodatabase.

Validation

Not Validated

Uncertainty

The assessment is preliminary and not field validated. Lake outlines and areas depend on the characteristics and interpretation of the 28 August CARTOSAT-3 image.

Limitations

The record documents two detected lakes at one post-event observation date; it does not by itself establish subsequent lake evolution, stability, or breach probability.

Access and reuse

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

Reviewed

Provider page

Open authoritative resource page

Assets

Authoritative metadata sources

• Source 1: data.humdata.org
• Source 2: data.humdata.org