NOAA-20 VIIRS Level-3 Global Mapped Inherent Optical Properties (IOP) - Near Real-time (NRT) Data, version 2022.0

Geophysical variables in this suite include: - a – Total absorption coefficient (sum of pure water + phytoplankton + CDOM/detritus, m⁻¹) - bb – Total backscattering coefficient (m⁻¹) - aph_445 – Phytoplankton absorption coefficient at 445 nm (m⁻¹) - aph_unc_445 – Uncertainty in absorption due to phytoplankton at 445 nm (m⁻¹) - adg_445 – Combined CDOM + non-algal detritus absorption coefficient at 445 nm; accompanied by adg_s (spectral slope, units nm⁻¹). - adg_unc_445 – Uncertainty in absorption due to gelbstoff and detrital material at 445 nm (m⁻¹). - bbp_445 – Particulate backscattering coefficient at 445 nm (m⁻¹); include bbp_s (power-law slope, unitless) describing spectral shape. - bbp_unc_445 – Uncertainty in particulate backscattering at 445 nm (m⁻¹). - rrsdiff – Fractional mean Rrs difference (reconstructed from inverted IOPs - input) (needs units).