Satellite-derived surface-water products covering the Nepal cascade corridor — NASA OPERA
- Outcome
- Completed
- Search date
- Source
- NASA OPERA
- Reference
- RUN-20260906-029
- Aim
- Find OPERA surface-water and related derived products with actual Nepal coverage.
- Source and interface
- NASA OPERA — CMR collection/granule search
- Search method
- Resolve collections by OPERA and product short names, inspect actual spatial/temporal coverage, then paginate all matching granules for the common bbox/window. Preserve collection concept IDs, production versions and asset roles. Do not assume all OPERA suites cover Nepal. Exhaust the declared result set and all exposed pagination; retain original records and metadata. A provider limit or failed retrieval is a partial outcome, never a zero-result or complete run. Actual request URLs and bodies, including pagination and endpoint recovery, are in search-reports/2026-09-07-remote-sensing-queries.json under RUN-20260906-029.
- Criteria
All languages and cloud levels. Spatial searches WGS84 [84.3976, 27.732, 85.5508, 28.35], 2026-06-27T00:00:00Z through 2026-09-06T22:38:26Z. Event releases retain their supplied historical references. - Coverage
- Event products: source-defined event release and historical references; spatial queries WGS84 [84.3976, 27.732, 85.5508, 28.35] from 2026-06-27 to frozen run start. Baselines retain stated source epochs. Native unit: CMR granules across2 collections.
- Stopping rule
- Exhaust all results and explicit product/metadata pagination for this declared interface; record unavailable or capped retrieval as such.
- Result
129 CMR granules across 2 collections. 2 discovery records; 1538 per-run distinct asset URLs. Automated screening, with new candidates under review and known identities retained. CMR result pages exhausted independently per collection; no cloud filtering. Item counts are observations; bands are assets; one resource per collection family. Checksums retained in raw metadata, not exported as scientific assets. Access-helper endpoint excluded from asset counts.
OPERA HLS surface-water products — Nepal corridor, June–September 2026
OPERA Sentinel-1 surface-water products — Nepal corridor, 27 June 2026