Detailed validation of the bidirectional effect in various Case I and Case II waters

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...

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Bibliographic Details
Published in:Optics express 2012-03, Vol.20 (7), p.7630-7645
Main Authors: Gleason, Arthur C R, Voss, Kenneth J, Gordon, Howard R, Twardowski, Michael, Sullivan, James, Trees, Charles, Weidemann, Alan, Berthon, Jean-François, Clark, Dennis, Lee, Zhong-Ping
Format: Article
Language:English
Subjects:
Computer Simulation
Light
Models, Chemical
Refractometry - methods
Scattering, Radiation
Water - chemistry
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Summary: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.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.20.007630