River water-level records at Malekhu and Galchi — BIPAD archive for August 2026 | Publicly Available Data Resources for the 2026 Nepal Glacier-Related Hazard Cascade

Resource details

Summary: Two station query routes distributing upstream hydrological records. Malekhu extends the locally catalogued source access; Galchi duplicates a subset of the DHM observations. Separate service families do not represent independent measurements.
Review findings: Automated metadata assessment; independent human eligibility and manuscript inclusion remain unassigned. No component-specific open licence established. Public API access does not establish redistribution permission. Only descriptive metadata and source links are published; retrieved source responses remain private.
Record type: Official Observation Service
Provider role: Official Aggregation Service
Original language: English
First identified: 8 September 2026
Geographic coverage: Selected sites on the Trishuli corridor and Phalakhu tributary, Nepal
Temporal coverage: Requested 25–31 August 2026 UTC; Malekhu returns 25–26 August, Galchi 28–31 August.
Collection licence: Under review
Redistribution: Metadata And Links Only
Source record: Open the source record
Metadata sources: Source 1: bipadportal.gov.np
Source 2: bipadportal.gov.np

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 as stable dataset sizes; request bytes recorded separately
Assets naming another contributor: 2
Confirmed reachable without registration: 2 of 2
Unavailable endpoints: 0

Listed assets

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River water-level observations — Trishuli at Furke Khola, Malekhu, 25–26 August 2026 (UTC; record ends early)

No stable dataset byte size stated; per-request byte counts retainedJSON

Open source asset

Listed contributor

hydrology.gov.np

BIPAD Portal; Nepal Department of Hydrology and Meteorology (source attribution)

Classification

Observational Data

Event Window

Data candidate · Metadata assessed 8 September 2026

Reachable without registration · Direct Open · checked 8 September 2026

Resolve unit, gauge-reference and quality-control documentation before comparing station magnitudes or converting water level to another quantity.
Retain the actual coverage and internal gaps; do not infer flood arrival or event peak from the first or last available sample.
Clarify the source description CDCP_TEST_2025 and the absence of a published Malekhu instrument/QC explanation.
Establish component-specific reuse terms before redistributing upstream observations or alert contents.

Screening findings and extracted metadata

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

Inspection basis: Metadata And Structure Reviewed
Temporal assessment: Event Window
Provider: BIPAD Portal; source attribution hydrology.gov.npSource Recorded · source · Selected native JSON record
Distribution host: bipadportal.gov.npSource Recorded · source · Selected native JSON record
Linked file format: JSONObserved Structure · source · Selected native JSON record
HTTP response size: 107517Observed Http · source · First linked response; subsequent page sizes in request ledger, not a stable archive file size
Rights statement: No component-specific open licence established. Public API access does not establish redistribution permission. Only descriptive metadata and source links are published; retrieved source responses remain private.Review Assessment · source · Selected native JSON record
Licence identifier: Not stated
File coordinate system: Not stated
Units reported by the source: Not stated
Observation time zone: Native timestamps carry UTC+05:45 offsets; embedded reference observations use Z (UTC). Comparisons normalized to UTC.Observed Structure · source · Selected native JSON record
Readings in the complete source response: 161Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Distinct observation identifiers: 161Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Distinct observation timestamps: 161Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Duplicate timestamps: 0Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Source observation start: 2026-08-25T00:05:00+00:00Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Source observation end: 2026-08-26T05:55:00+00:00Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Readings inside the requested UTC window: 161Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Unresolved observation timestamps: 0Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Readings with no value: 0Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Nonnumeric values: 0Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Nonfinite values: 0Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Negative values: 0Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Most common observed interval (seconds): 600Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Largest internal observation interval (seconds): 1800Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Intervals longer than the most common spacing: 18Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Smallest creation-to-observation time difference (seconds): 309.061934Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Largest creation-to-observation time difference (seconds): 342.884482Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Station name in the source: Trishuli at Furke Khola(Malekhu)Source Recorded · source · Selected native JSON record
Observation series identifier: 31967Source Recorded · source · Selected native JSON record
BIPAD station identifier: 261Source Recorded · source · Selected native JSON record
River basin: NarayaniSource Recorded · source · Selected native JSON record
BIPAD district identifier: 26Source Recorded · source · Selected native JSON record
District stated by the source: DhadingCross Record Identifier Resolution · source · Alert title names Dhading and its native embedded river reference assigns district 26; both selected station series carry district 26
Station latitude: 27.802439Source Recorded · source · Selected native JSON record
Station longitude: 84.844102Source Recorded · source · Selected native JSON record
Station elevation (not gauge datum): Not stated
Station description: CDCP_TEST_2025Source Recorded · source · Selected native JSON record
Observed variable: waterLevel (river water level)Source Recorded · source · Selected native JSON record
Instrument quality-control information: No quality-control flags, calibration or validated datum supplied. The source station description is CDCP_TEST_2025; its instrument and QC meaning is not established by this response.Review Assessment · source · Review interpretation of retrieved provider metadata and documented request procedure
Requested analysis window: [2026-08-25T00:00:00Z, 2026-09-01T00:00:00Z)Protocol Defined · source · Prospectively declared comparison interval; native request bounds retained separately
How to retrieve this interval: GET the linked bounded query, then follow its native next link to the recorded empty page. Filters use strict gt/lt; the lower request bound is one microsecond before midnight to include midnight. Full request history is in the phase report.Review Assessment · source · Review interpretation of retrieved provider metadata and documented request procedure
Historical query result: 161 readings; pagination exhausted; coverage gaps remainDerived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
Unit and gauge-reference limits: No unit or datum is stated in the retrieved BIPAD River schema. The matching DHM Galchi route labels water level in metres; numeric agreement does not establish the Malekhu reference.Review Assessment · source · Review interpretation of retrieved provider metadata and documented request procedure
Threshold fields in the retrieved records: All 161 records carry warning level 7 and danger level 8. These are fields attached to retrieved rows; their historical validity is not established.Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling

The bounded BIPAD query returned 161 readings from 2026-08-25T00:05:00+00:00 to 2026-08-26T05:55:00+00:00. Observed spacing is usually ten minutes, with internal gaps. The record stops on 26 August at 11:40 Nepal time. This is the last available sample, not an established flood-arrival time or event peak. The source description CDCP_TEST_2025 remains an unresolved instrument/QC label. BIPAD does not state units or a common gauge datum in the retrieved schema. Water level is not discharge or inundation depth.
No component-specific open licence established. Public API access does not establish redistribution permission. Only descriptive metadata and source links are published; retrieved source responses remain private.
Public access and structural inspection do not establish scientific accuracy; station points and alert demography are not a measured flood footprint or affected-person count.

Download screening decisions · Download all metadata and field sources

Catalogue details

Original source title: Trishuli at Furke Khola(Malekhu)
Asset reference: acand_44e9b79c-f66e-5f7e-ac67-36e982438ffb
Host / aggregator: bipadportal.gov.np
Relationship to record: The bounded BIPAD query returned 161 readings from 2026-08-25T00:05:00+00:00 to 2026-08-26T05:55:00+00:00. Observed spacing is usually ten minutes, with internal gaps. The record stops on 26 August at 11:40 Nepal time. This is the last available sample, not an established flood-arrival time or event peak. The source description CDCP_TEST_2025 remains an unresolved instrument/QC label. BIPAD does not state units or a common gauge datum in the retrieved schema. Water level is not discharge or inundation depth.
Upstream source: hydrology.gov.np
Upstream evidence: Native dataSource/source fields; source agency and distribution host kept separate
Dataset family: River water-level records at Malekhu and Galchi — BIPAD archive for August 2026
Acquisition date: 2026-08-25T00:05:00+00:00 to 2026-08-26T05:55:00+00:00
Spatial resolution: Not applicable; station/alert point, not raster pixels or an inundation footprint
Access result: Reachable without registration on 8 September 2026
Provenance: Under review
Rights: Under review — No component-specific open licence established. Public API access does not establish redistribution permission. Only descriptive metadata and source links are published; retrieved source responses remain private.
Redistribution: Metadata And Links Only; Source Response Bodies Remain Private
Production method: Automated source metadata and structured-response charting; no independent measurement validation

Evidence: source 1 · source 2 · source 3 · source 4

River water-level observations — Trishuli at Galchi, 28–31 August 2026 (UTC; subset of DHM records)