Array · collection · 2022
Sentinel-3A OLCI Regional Binned Inland Waters (ILW) Data, version 5.0
Listed in NASA Earthdata CMR
The ILW suite provides inland-water extractions for lakes and reservoirs across the contiguous U.S. (CONUS) and Alaska.
Description
ILW delivers Rayleigh-corrected surface reflectance (ρs, unitless) and the Cyanobacteria Index (CI_cyano, unitless). The data target for MERIS and OLCI are 15,450 CONUS waterbodies (≥1 full-resolution 300 m OLCI pixel), >2,300 larger resolvable lakes (≥3 pixels), and 5,874 resolvable lakes in Alaska—created in collaboration with the CyAN program to reduce user processing and provide a standardized resource for inland-water algorithm development, validation, and trend analysis.
PACE OCI ILW targets 117 CONUS lakes (≥3 pixels) and lakes across Alaska. Geophysical variables in this suite include: - CI_cyano – Cyanobacteria Index, cyanobacteria only (Wynne & Stumpf algorithm, 2013) (sr⁻¹) - flags_habs – Harmful Algal Bloom flags (unitless / bitmask) - rhos_λ – Surface reflectance at wavelength λ (dimensionless)
Links
Get the data
- search.earthdata.nasa.gov /search/granules?p=C3433948434-OB_CLOUD ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
Where it is published
- DOI doi.org/10.5067/s3a/olci/l3b/ilw/5.0 ↗
DOI / persistent id · from NASA CMR
Documentation and papers
- OLCI Homepage earthdata.nasa.gov/data/instruments/OLCI ↗
documentation · from NASA CMR
- nasa.github.io /oceandata-notebooks ↗
Satellite data procesing can be difficult. We're here to help! Visit the Oceandata Help Hub to navigate learning content for accessing visualizing, and analyzing data products.
documentation · from NASA CMR
- Sentinel-3A Homepage earthdata.nasa.gov/data/platforms/space-based-platforms/Sentinel-3A ↗
documentation · from NASA CMR
Catalogue records · 2
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3433948434-OB_CLOUD.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3433948434-OB_CLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Cyanobacteria (Blue-Green Algae) · Ground Water · Harmful Algal Bloom (Habs) · Lakes/Reservoirs · Ocean and Land Colour Imager · Rivers/Streams · Sentinel-3A · Water Color · Water Quality · Wetlands
- Inferred from text
- Hydrology 71%
Provenance · 1 source records, 20 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3433948434-OB_CLOUD | 8 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3707 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (71%) |
| concepts[instrument].gcmd_instrument:olci | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biological-classification/bacteria-archaea/cyanobacteria-blue-green-algae | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/water-quality/algal-blooms/harmful-algal-bloom-habs | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science-services/environmental-advisories/hydrological-advisories/water-quality | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/terrestrial-hydrosphere/ground-water | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/terrestrial-hydrosphere/surface-water/surface-water-features/lakes-reservoirs | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/terrestrial-hydrosphere/surface-water/surface-water-features/rivers-streams | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/terrestrial-hydrosphere/surface-water/surface-water-features/wetlands | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/terrestrial-hydrosphere/water-quality-water-chemistry/water-characteristics/water-color | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:sentinel-3a | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| updated_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |