Global ocean data from the Sentinel-3B satellite processed by the Ocean Biology DAAC. The dataset provides near real-time inherent optical properties derived from spectral remote sensing reflectance using the Generalized Inherent Optical Properties model. This activity was informed by the U.S. Government's Satellite Needs Working Group.
Use Cases
- Water-type classification based on inherent optical properties like absorption and backscattering coefficients.
- Water-clarity assessment based on total absorption and backscattering coefficients.
- Biogeochemical studies based on phytoplankton and particulate backscattering coefficients.
- Forward/adjoint radiative-transfer applications based on per-pixel inherent optical properties.
- Cross-sensor comparisons based on more robust inherent optical properties rather than apparent optical properties.
Strengths
- Provides near real-time data, offering a snapshot from a short time period within a single orbit.
- Includes specific geophysical variables such as total absorption coefficient (a) and total backscattering coefficient (bb).
- Derived using the Generalized Inherent Optical Properties model framework.
- Supports multiple applications including water-type classification and biogeochemical studies.
Limitations
- Description metadata is limited; actual data quality requires manual inspection after download.
- Row count is unknown, which may limit suitability assessment.
- The inputs and calibration used for the near real-time products are described as 'less than optimal'.
Provenance
- Source
- Ocean Biology DAAC (OB_CLOUD) via NASA Earthdata.
- Collection Method
- Satellite observation from Sentinel-3B OLCI instrument, processed using the Generalized Inherent Optical Properties model.
- Freshness
- Near real-time
- Geography
- Global