Near real-time satellite data from Suomi-NPP VIIRS provides per-pixel inherent optical properties of seawater globally. The Ocean Biology DAAC produces these products using the best-available ancillary meteorological and ozone data, offering a snapshot within a single orbit. These properties describe how seawater and its constituents absorb and scatter light, independent of illumination or viewing geometry.
Use Cases
- Water-type classification based on retrieved inherent optical properties.
- Water-clarity assessment based on absorption and backscattering coefficients.
- Biogeochemical studies leveraging phytoplankton and particulate backscattering coefficients.
- Forward and adjoint radiative-transfer applications using per-pixel IOPs.
- Cross-sensor comparisons enabled by the more robust IOP framework compared to apparent optical products.
Strengths
- Provides near real-time (NRT) data, offering a timely snapshot of ocean conditions.
- Retrieves multiple inherent optical properties per pixel, including total absorption and backscattering coefficients.
- Supports robust cross-sensor comparisons through the Generalized Inherent Optical Properties (GIOP) model framework.
Limitations
- Description metadata is limited; actual data quality requires manual inspection after download.
- Column-level documentation is absent; field semantics must be inferred after download.
- Data may reflect temporal or spatial bias inherent to the Suomi-NPP VIIRS satellite's near real-time processing.
Provenance
- Source
- Ocean Biology DAAC (OB_CLOUD) via NASA Earthdata
- Collection Method
- Satellite remote sensing from Suomi-NPP VIIRS, processed using the Generalized Inherent Optical Properties (GIOP) model framework.
- Freshness
- Near real-time
- Geography
- Global ocean