National and Kapodistrian University of Athens, 190 years
Tribhuvan University emblemTribhuvan University

Back to resources

Flood-affected area — Upper Trishuli-1, Charter product 6073

Original title Flash Flood affected area in Trishuli-1, Nepal

Status
Resource eligibility under review
Provider
International Charter
Publication date
Multiple product dates; see source record
Listed assets
2

Resource details

Summary
This map presents flood-related damage to Upper Trishuli-1 (UT-1), a 216 MW hydropower project under construction in Rasuwa District, Bagmati Province, Nepal, following the event of 26 August 2026. Pre-event Google Earth basemap images dated 29 November 2025 and 20 January 2026 were compared with post-event PlanetScope optical and Resurs-P panchromatic imagery acquired on 27 and 28 August 2026, respectively. The delineated areas correspond to flood traces identified by the United Nations Satellite Centre (UNOSAT). Visual comparison of pre- and post-event imagery indicates flood-related surface changes around key components of UT-1, including the main construction camp, the entrances to the main tunnel leading to the UT-1 power plant and an intermediate tunnel, and the weir. Initial reports indicated that the upper dam section and the main construction camp were each approximately 90% destroyed.
Review findings
Automated screening suggests potential eligibility. Public provider product record describes relevant event analysis and exposes an analytical document. Exact activation product identifiers resolve cross-interface duplicates. Product source acquisitions and creation dates remain separate. Private products are excluded from public asset export; map interpretation is preliminary. Independent human screening and manuscript inclusion remain pending. All 2 asset metadata records were assessed in REV-20260907-ASSETS-001; 2 have flagged follow-up. Asset screening and field evidence are available in the metadata review export. This does not assign resource eligibility or manuscript inclusion.
Record type
Derived Product Or Context Collection
Provider role
Producer And Or Distributor As Documented
Original language
English
First identified
6 September 2026
Geographic coverage
Provider-defined Nepal event area or intersecting global tiles; exact source extents retained with asset metadata.
Temporal coverage
Source-defined event products and historical context; component dates require source-specific interpretation.
Collection licence
Not stated
Redistribution
Metadata and links only; third-party files are not redistributed

Inventory

All 2 asset metadata records have been assessed. 2 have flagged follow-up. Read the screening method and findings.

Listed assets
2
Provider-stated total
Not stated
Assets naming another contributor
0
Confirmed reachable without registration
2 of 2
Unavailable endpoints
0

Listed assets

Download CSV

2 candidate assets

01

Flood-affected area — Upper Trishuli-1, Charter product 6073 — map image · item 1

Not statedJPEG

Open source asset
Listed contributor

International Charter

Classification

Analytical Map

Not Stated

Follow-up needed · Metadata assessed 6 September 2026

Reachable without registration · Direct Open · checked 6 September 2026

  • Resolve the shared 1209-25 reference against MEDIA-1209-25 and product 6073 before counting distinct evidence.
Screening findings and extracted metadata

Automated metadata and technical review. Resource eligibility and manuscript inclusion are separate decisions.

Inspection basis
Metadata Reviewed Body Not Inspected
Temporal assessment
Not Resolved From Asset Dates
Provider
International CharterSource Recorded · source · catalogue contributor
Dataset family
1209-25Source Recorded · source · catalogue dataset family
Linked file format
JPEGSource Recorded · source · catalogue file_format
Rights statement
Source-specific copyright entries are retained. Underlying acquisition agency is not automatically the analysis producer.Source Recorded · source · catalogue rights_note
Source identifier
1209-25Source Recorded · source · relationship_to_parent.reference
HTTP response size
4624581Observed Http · source · HTTP HEAD Content-Length or Content-Range total; compressed transfer length may differ
File coordinate system
Not stated
File pixel spacing
Not stated
Source observation start
Not stated
Source observation end
Not stated
Source bounds (west, south, east, north)
Not stated
Licence identifier
Not stated

Download screening decisions · Download all metadata and field sources

Catalogue details
Original source title
Flash Flood affected area in Trishuli-1, Nepal — url
Asset reference
acand_3c3b7b63-f9d5-54b6-acad-48fc9c7acb32
Host / aggregator
International Charter
Relationship to record
Component of the source product.
Upstream source
International Charter
Upstream evidence
source attribution documented; independent verification not performed
Dataset family
1209-25
Acquisition date
Not stated
Spatial resolution
Not stated
Access result
Reachable without registration on 6 September 2026
Provenance
Under review
Rights
Not stated — Source-specific copyright entries are retained. Underlying acquisition agency is not automatically the analysis producer.
Redistribution
Not redistributed by this catalogue
Production method
Automated source-metadata screening. No independent human review. Unchecked file URLs have an inventory timestamp only.
Source metadata

Component of the source product. {"product_id":6073,"reference":"1209-25","sources":[{"tableName":"productSources","primaryKey":24394,"id":24394,"productId":6073,"acquisitionIdentifier":"urn_ogc_def_EOP_PLANET_PT01N28_066492E085_2448252026082700000000MS00","agency":"PLANET","copyright":"© Planet Labs Inc. (2026)","acquisitionDate":"2026-08-27T04:58:17Z","acquisitionDateFormatted":"27 Aug 2026, 04:58:17","description":null,"type":"COS2_SOURCE","typeParsed":1,"satellite":null,"instrument":null,"mode":null,"created":"2026-09-02T07:47:50Z","updated":"2026-09-02T07:47:50Z"},{"tableName":"productSources","primaryKey":24395,"id":24395,"productId":6073,"acquisitionIdentifier":"urn_ogc_def_EOP_ROSCOSMOS_0045_0102_09360_1_09358_01_FRAGMENT_RESURS_P_GEOTON_L1_ORTO_PAN","agency":"ROSCOSMOS","copyright":"© NTs OMZ, All Rights Reserved","acquisitionDate":"2026-08-28T06:29:52Z","acquisitionDateFormatted":"28 Aug 2026, 06:29:52","description":null,"type":"COS2_SOURCE","typeParsed":1,"satellite":null,"instrument":null,"mode":null,"created":"2026-09-02T07:47:50Z","updated":"2026-09-02T07:47:50Z"}],"created":"2026-09-02T07:47:50Z","updated":"2026-09-02T07:47:50Z","area":null}

Evidence: source 1 · source 2

02

Flood-affected area — Upper Trishuli-1, Charter product 6073 — map image · item 2

Not statedJPEG

Open source asset
Listed contributor

International Charter

Classification

Preview

Not Stated

Follow-up needed · Metadata assessed 6 September 2026

Reachable without registration · Direct Open · checked 6 September 2026

  • Resolve the shared 1209-25 reference against MEDIA-1209-25 and product 6073 before counting distinct evidence.
Screening findings and extracted metadata

Automated metadata and technical review. Resource eligibility and manuscript inclusion are separate decisions.

Inspection basis
Metadata Reviewed Body Not Inspected
Temporal assessment
Not Resolved From Asset Dates
Provider
International CharterSource Recorded · source · catalogue contributor
Dataset family
1209-25Source Recorded · source · catalogue dataset family
Linked file format
JPEGSource Recorded · source · catalogue file_format
Rights statement
Source-specific copyright entries are retained. Underlying acquisition agency is not automatically the analysis producer.Source Recorded · source · catalogue rights_note
Source identifier
1209-25Source Recorded · source · relationship_to_parent.reference
File coordinate system
Not applicable to this asset role
File pixel spacing
Not applicable to this asset role
HTTP response size
638506Observed Http · source · HTTP HEAD Content-Length or Content-Range total; compressed transfer length may differ
Source observation start
Not stated
Source observation end
Not stated
Source bounds (west, south, east, north)
Not stated
Licence identifier
Not stated
  • Source acquisition dates, footprint and resolution describe the parent observation; they do not establish georeferencing or pixel spacing for this preview or metadata file.

Download screening decisions · Download all metadata and field sources

Catalogue details
Original source title
Flash Flood affected area in Trishuli-1, Nepal — quicklookUrl
Asset reference
acand_ce7380c0-9153-53e0-8711-1ed130c75ce8
Host / aggregator
International Charter
Relationship to record
Component of the source product.
Upstream source
International Charter
Upstream evidence
source attribution documented; independent verification not performed
Dataset family
1209-25
Acquisition date
Not stated
Spatial resolution
Not stated
Access result
Reachable without registration on 6 September 2026
Provenance
Under review
Rights
Not stated — Source-specific copyright entries are retained. Underlying acquisition agency is not automatically the analysis producer.
Redistribution
Not redistributed by this catalogue
Production method
Automated source-metadata screening. No independent human review. Unchecked file URLs have an inventory timestamp only.
Source metadata

Component of the source product. {"product_id":6073,"reference":"1209-25","sources":[{"tableName":"productSources","primaryKey":24394,"id":24394,"productId":6073,"acquisitionIdentifier":"urn_ogc_def_EOP_PLANET_PT01N28_066492E085_2448252026082700000000MS00","agency":"PLANET","copyright":"© Planet Labs Inc. (2026)","acquisitionDate":"2026-08-27T04:58:17Z","acquisitionDateFormatted":"27 Aug 2026, 04:58:17","description":null,"type":"COS2_SOURCE","typeParsed":1,"satellite":null,"instrument":null,"mode":null,"created":"2026-09-02T07:47:50Z","updated":"2026-09-02T07:47:50Z"},{"tableName":"productSources","primaryKey":24395,"id":24395,"productId":6073,"acquisitionIdentifier":"urn_ogc_def_EOP_ROSCOSMOS_0045_0102_09360_1_09358_01_FRAGMENT_RESURS_P_GEOTON_L1_ORTO_PAN","agency":"ROSCOSMOS","copyright":"© NTs OMZ, All Rights Reserved","acquisitionDate":"2026-08-28T06:29:52Z","acquisitionDateFormatted":"28 Aug 2026, 06:29:52","description":null,"type":"COS2_SOURCE","typeParsed":1,"satellite":null,"instrument":null,"mode":null,"created":"2026-09-02T07:47:50Z","updated":"2026-09-02T07:47:50Z"}],"created":"2026-09-02T07:47:50Z","updated":"2026-09-02T07:47:50Z","area":null}

Evidence: source 1 · source 2