The Terra MODIS Level-3 Global Binned Inherent Optical Properties (IOP) Data, version 2022.0, provides per-pixel inherent optical properties retrieved from spectral Remote Sensing Reflectance. Geophysical variables include total absorption and backscattering coefficients, phytoplankton absorption at 443 nm, and coefficients for CDOM and detritus. The data supports water-type classification, water-clarity assessment, and biogeochemical studies.
Use Cases
- Water-type classification based on total absorption and backscattering coefficients.
- Water-clarity assessment using the particulate backscattering coefficient at 443 nm.
- Biogeochemical studies leveraging phytoplankton absorption coefficient at 443 nm.
- Cross-sensor comparisons enabled by inherent optical properties rather than apparent optical products.
- Forward/adjoint radiative-transfer applications using spectral slope parameters for absorption and backscattering.
Strengths
- Provides inherent optical properties independent of illumination or viewing geometry.
- Includes uncertainty estimates for key variables like phytoplankton absorption and particulate backscattering.
- Supports more robust cross-sensor comparisons than purely apparent optical products.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data may reflect geographic or temporal bias inherent to nasa_earthdata.
Provenance
- Source
- OB_CLOUD
- Collection Method
- Retrieved from spectral Remote Sensing Reflectance using the Generalized Inherent Optical Properties (GIOP) model framework.
- Geography
- Global