. . . . . . "Downwelling vector irradiance as photons of electromagnetic radiation (PAR wavelengths) in the atmosphere by cosine-collector radiometer and taking the average value from two or more sensors"@en . . "SDN:P01::IRRDSVMS" . . . . "Averaged data from two or more cosine photodiode light meters."@en . "accepted"@en . . . . . "SurfVPAR_AvSens" . . . . . . . . . . . .