PACE OCI Level-3 Global Mapped Diffuse Attenuation Coefficient of Downwelling Irradiance (KD) - Near Real-time (NRT) Data, version 3.2

Lower values indicate clearer water (deeper light penetration); users commonly apply Kd to estimate euphotic depth, track coastal water quality and turbidity, interpret bloom/light environments, and supply inputs to biogeochemical and ecosystem models. As with all ocean-color products, uncertainties can be larger in optically complex coastal or inland waters; refer to the file metadata and algorithm documentation for quality flags and usage notes.

Geophysical variables in this suite include: - Kd — Diffuse attenuation coefficient of downwelling irradiance, Lee algorithm (m⁻¹)