Photosynthetically Active Radiation (400-700 nm) (OPTPARW)
Photosynthetically Active Radiation (PAR) is the measure of the density of photons per unit area that are in the spectral range of light (400-700 nanometers) that primary producers use for photosynthesis.
Instrument Classes
The following instrument classes include this data product:
Typical Units
µmol photons m-2 s-1
Sampling Regime
Water Column