Completed catalogue decisions are recorded separately from technical inspection and scientific validation. Access and metadata evidence retain their original dates and scope.
Completed catalogue assessment
- Eligibility decision
- Include · Included Data
- Assessment date
- 28 September 2026
- Decision reason
- Both original BIPAD queries retrieved. Malekhu has 161 observations 25–26 August; Galchi 467 observations 28–31 AugustUTC, so Galchi does not capture the initial flood arrival. Values have no stated unit/datum in BIPAD schema. Source is hydrology.gov.np; no independent instrument series is inferred.
- Information role
- Observational Data
- Scientific validation
- not_performed_by_catalogue_review
- Access assessment
- Retrieved Original Body
- Rights assessment
- Not Stated
Included data · 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.
- Use the existing DHM observations when counting independent Galchi measurements; BIPAD adds a distribution route, not new readings.
- Establish component-specific reuse terms before redistributing upstream observations or alert contents.
Screening findings and extracted metadata
Metadata and technical findings retain their original inspection scope and evidence dates. Catalogue eligibility and source scientific validation are recorded separately.
- 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
- 304007Observed 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 · source · Selected native JSON record
- File coordinate system
- Not Stated · source · No file-level CRS declared in API response; selected alert reference points explicitly state SRID 4326
- Units reported by the source
- Not Stated · source · No measurement-unit definition supplied in retrieved BIPAD River schema; upstream DHM association is recorded separately
- 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
- 467Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
- Distinct observation identifiers
- 467Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
- Distinct observation timestamps
- 467Derived 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
- 2026-08-28T11:05:00+00:00Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
- Source observation end
- 2026-08-31T23:55:00+00:00Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
- Readings inside the requested UTC window
- 467Derived 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)
- 2400Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
- Intervals longer than the most common spacing
- 41Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
- Smallest creation-to-observation time difference (seconds)
- 308.860889Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
- Largest creation-to-observation time difference (seconds)
- 914.085665Derived From Observed Structure · source · Derived from all returned native rows; no removal, interpolation or resampling
- Station name in the source
- Trishuli at GalchiSource Recorded · source · Selected native JSON record
- Observation series identifier
- 36628Source Recorded · source · Selected native JSON record
- BIPAD station identifier
- 281Source 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
- 27.802328Source Recorded · source · Selected native JSON record
- Station longitude
- 85.00305Source Recorded · source · Selected native JSON record
- Station elevation (not gauge datum)
- 378Source Recorded · source · Selected native JSON record
- Station description
- RLS from RTSSource 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 RLS from RTS; 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
- 467 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
- Warning level is missing in 390 records and is 367 in 77 records. Danger level is missing in all 467 records. 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
- Overlap with previously retrieved DHM observations
- 467 of 467 BIPAD readings have exactly equal timestamps and numeric values in the 1,008-row DHM Galchi response; 541 DHM timestamps are absent from BIPAD. Same station-series ID 36628. No resampling or tolerance used.Derived From Observed Structure · source · Compared with private RUN-20260908-041 Galchi array; source page https://dhm.gov.np/hydrology/hms-Single/5705
- The bounded BIPAD query returned 467 readings from 2026-08-28T11:05:00+00:00 to 2026-08-31T23:55:00+00:00. Observed spacing is usually ten minutes, with internal gaps. All 467 timestamps and numeric values exactly match the previously retrieved DHM Galchi series; DHM contains 541 additional timestamps. BIPAD warning-level metadata is null in 390 rows and 367 in 77 rows; the status label alone cannot establish safety. 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
Authoritative Metadata Sources
