Solar container attenuation coefficient

Through purely numerical simulations, it was found that the diffuse attenuation coefficient of downwelling USR (Kd (USR), m−1) is nearly a constant vertically in the upper water column for clear waters and most turbid waters. The linear attenuation coefficient, attenuation coefficient, or narrow-beam attenuation coefficient characterizes how easily a volume of material can be penetrated by a beam of light, sound, particles, or other energy or matter. TY - AU - Lin, Junfang AU - Lee, Zhongping AU - Ondrusek, Michael AU - Kahru, Mati AB - Usable solar radiation (USR) represents spectrally integrated solar energy in the spectral range of 400–560 nm, a domain where photons penetrate the most in oceanic waters and thus contribute to photosynthesis. Currently, KPAR is estimated based on chlorophyll concentration ([C]) from ocean color. This kind of approach works well for waters where all optical properties can be adequately described by values of [C], but will result in large uncertainti s for coastal waters where [C] alone cannot accurately.