Detailed Validation of the bidirectional effect in various Case I and Case II waters
2012
GLEASON Arthur C. R. | VOSS K. J. | GORDON Howard R. | TWARDOWSKI Michael | SULLIVAN James | TREES Charles | WEIDEMANN Alan | BERTHON Jean-Francois | CLARK Dennis | LEE Zhongping
Simulated bidirectional reflectance distribution functions (BRDF) were compared with measurements made just beneath the water’s surface. In Case I water, the set of simulations that varied the particle scattering phase function depending on chlorophyll concentration agreed more closely with the data than other models. In Case II water, however, the simulations using fixed phase functions agreed well with the data and were nearly indistinguishable from each other, on average. The results suggest that BRDF corrections in Case II water are feasible using single, average, particle scattering phase functions, but that the existing approach using variable particle scattering phase functions is still warranted in Case I water.
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