A semi-analytical data processing method for the Satlantic Hyper-TSRB

HYPERspectral Tethered Spectral Radiometer Buoy (Hyper-TSRB, Satlantic Inc.) has 123 channels from 400 nm to 800 nm to measure downwelling irradiance (E/sub d/) and upwelling radiance (L/sub u/). The supplied software for Hyper-TSRB data processing (AKA, PROSOFT) is based on Case I and/or empirical algorithms. A new semi-analytical method is proposed for Level 3 data processing. Basically, for open oceans case I waters, no large differences are found between the new method and PROSOFT (/spl sim/10%); while for coastal case II waters, the new method is much better than PROSOFT in computed remote sensing reflectance (/spl sim/10%-350%). The effect of phase function to the new method is also analyzed, it is shown that the new method can work stably for a wide phase function ranges.