Suomi-NPP VIIRS: Regional Inherent Optical Properties of Seawater

Inherent Optical Properties (IOP) data retrieved from satellite Remote Sensing Reflectance using the Generalized Inherent Optical Properties (GIOP) model framework. The dataset provides pixel-level coefficients for seawater absorption and backscattering, supporting water-type classification and biogeochemical studies. It originates from the Suomi-NPP satellite's VIIRS instrument and is hosted on NASA's Earthdata platform.

Use Cases

• Water-type classification based on total absorption and backscattering coefficients.
• Water-clarity assessment using the particulate backscattering coefficient (bbp_443).
• Biogeochemical studies leveraging phytoplankton absorption (aph_443) and CDOM/detritus absorption (adg_443) variables.
• Forward/adjoint radiative-transfer applications based on inherent optical properties independent of illumination geometry.
• Cross-sensor comparison for ocean color products using the more robust IOP framework.

Strengths

• Provides per-pixel inherent optical properties, which are more robust for cross-sensor comparisons than apparent optical properties.
• Includes specific geophysical variables such as absorption coefficients for phytoplankton (aph_443) and CDOM/detritus (adg_443).
• Contains uncertainty estimates for key variables, including aph_unc_443 and bbp_unc_443.

Limitations

• Row count, file formats, and exact data size are unknown, which may limit suitability assessment.
• Column-level documentation beyond the listed geophysical variables is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.

Provenance

Source

NASA Earthdata (Suomi-NPP VIIRS instrument)

Collection Method

Satellite remote sensing data processed through the Generalized Inherent Optical Properties (GIOP) model framework.

Geography

Regional coverage (specific regions not specified in input).