dataset · USA
Sentinel-2 ACOLITE-DSF Aquatic Reflectance for the Conterminous United States
Aquatic reflectance produced with the dark spectrum fitting (DSF) algorithm as implemented in the Atmospheric Correction for OLI “lite” (ACOLITE) software (version 20221114.0). Aquatic reflectance is defined here as unitless water-leaving radiance reflectance and represents the ratio of water-leaving radiance (units of watts per square meter per steradian per nanometer) to downwelling irradiance (units of watts per square meter per nanometer) multiplied by pi.
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Licence: Contains modified Copernicus Sentinel data, which is available under the Creative Commons CC BY-SA 3.0 IGO license. Please reference King et al., 2024 (doi 10.5066/P904243C) when referring to the aqua
Evidence quality: 41.1
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
- Sentinel-2 aquatic reflectance (unitless water-leaving radiance reflectance, ACOLITE-DSF)
- Coverage docs-verified
- Conterminous United States
- Update frequency docs-verified
- Daily (new scenes added daily)
- Formats llm-inferred
- COG (Cloud Optimized GeoTIFF), inferred from 'cog' tag
- Access docs-verified
- Public access via AWS S3 with no AWS account required (anonymous CLI access); licence CC BY-SA 3.0 IGO, contains modified Copernicus Sentinel data, attribution required
Useful for
- Use cases llm-inferred
- Water clarity and turbidity screening of US reservoirs and lakes for baseline water quality assessment · Remote-sensed water quality context for US environmental impact assessments or monitoring reports · Multi-temporal reflectance trend analysis for US river or lake client sites
- Audience llm-inferred
- water quality scientists · environmental consultants · hydrologists · GIS analysts · remote sensing specialists
Limitations
- Constraints llm-inferred
- Coverage limited to the conterminous United States; no UK coverage · Reflectance product only; does not provide water quality parameters such as chlorophyll or turbidity directly · Processed with a fixed ACOLITE version (20221114.0) · Licence requires attribution: cite King et al., 2024 (doi 10.5066/P904243C) and include 'Contains modified Copernicus Sentinel data [Year]' · Direct S3 bucket access with no listed query API or tools
Evidence
- arn:aws:s3:::usgs-wma-sentinel-2-aqr-acolite-dsf/version_01, arn:aws:sns:us-west-2:242201296900:usgs-wma-sentinel-2-aqr-acolite-dsf-object_created
- https://registry.opendata.aws/usgs_aqr/
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.