dataset · Global
OPERA Dynamic Surface Water Extent from Harmonized Landsat Sentinel-2 product (Version 1)
This dataset contains Level-3 Dynamic OPERA surface water extent product version 1. The data are validated surface water extent observations beginning April 2023. Known issues and caveats on usage are described under Documentation. The input dataset for generating each product is the Harmonized Landsat-8 and Sentinel-2A/B/C (HLS) product version 2.0. HLS products provide surface reflectance (SR) data from the Operational Land Imager (OLI) aboard the Landsat 8 satellite and the MultiSpectral Inst
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Licence: [Creative Commons BY 4.0](https://creativecommons.org/licenses/by/4.0/)
Evidence quality: 46.3
Listed in aws-odr public catalogue API on 2026-10-16; relevance/value screened (haiku).
Metadata checked: 2026-10-14T13:20:00.000Z
What's in it
- Data offered docs-verified
- surface water extent (OPERA DSWx) · water classification · water classification confidence · land cover classification · terrain shadow layer · cloud/cloud-shadow classification · DEM (Copernicus-derived) · diagnostic layer
- Coverage llm-inferred
- Global · 2023-04-04 to ongoing
- Resolution docs-verified
- 30 m pixel spacing
- Update frequency docs-verified
- Daily to less than weekly
- Formats docs-verified
- GeoTIFF
- Access docs-verified
- Controlled access: AWS S3 bucket (us-west-2), AWS credentials required via PODAAC; licence CC BY 4.0
Useful for
- Use cases llm-inferred
- Historic flood extent baselines for FRA from observed surface water since April 2023 · Validating hydraulic model inundation outputs against satellite-observed water extent · Mapping wetland and reservoir water extent for ecological or water-resource baselines
- Audience llm-inferred
- flood consultants · hydrologists · GIS analysts · ecologists · water resources engineers
Limitations
- Constraints llm-inferred
- Validated record begins April 2023, so no pre-2023 history · Known issues and usage caveats sit in the external Documentation (DOI 10.5067/OPDSW-PL3V1), not summarised here · Controlled-access S3 bucket needs AWS credentials from PODAAC · DEM layer carries a Copernicus disclaimer; producers assume no liability · Dataset only, no MCP tools or API wrapper
Evidence
- arn:aws:s3:::podaac-ops-cumulus-protected/OPERA_L3_DSWX-HLS_V1
- https://registry.opendata.aws/nasa-operal3dswx-hlsv1/
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.