PMID- 22453442 OWN - NLM STAT- MEDLINE DCOM- 20120801 LR - 20191210 IS - 1094-4087 (Electronic) IS - 1094-4087 (Linking) VI - 20 IP - 7 DP - 2012 Mar 26 TI - Detailed validation of the bidirectional effect in various Case I and Case II waters. PG - 7630-45 LID - 10.1364/OE.20.007630 [doi] AB - 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. FAU - Gleason, Arthur C R AU - Gleason AC AD - Physics Department, University of Miami, Coral Gables, FL 33124, USA. art.gleason@miami.edu FAU - Voss, Kenneth J AU - Voss KJ FAU - Gordon, Howard R AU - Gordon HR FAU - Twardowski, Michael AU - Twardowski M FAU - Sullivan, James AU - Sullivan J FAU - Trees, Charles AU - Trees C FAU - Weidemann, Alan AU - Weidemann A FAU - Berthon, Jean-Francois AU - Berthon JF FAU - Clark, Dennis AU - Clark D FAU - Lee, Zhong-Ping AU - Lee ZP LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PT - Validation Study PL - United States TA - Opt Express JT - Optics express JID - 101137103 RN - 059QF0KO0R (Water) SB - IM MH - Computer Simulation MH - Light MH - *Models, Chemical MH - Refractometry/*methods MH - Scattering, Radiation MH - Water/*chemistry EDAT- 2012/03/29 06:00 MHDA- 2012/08/02 06:00 CRDT- 2012/03/29 06:00 PHST- 2012/03/29 06:00 [entrez] PHST- 2012/03/29 06:00 [pubmed] PHST- 2012/08/02 06:00 [medline] AID - 230458 [pii] AID - 10.1364/OE.20.007630 [doi] PST - ppublish SO - Opt Express. 2012 Mar 26;20(7):7630-45. doi: 10.1364/OE.20.007630.