Above-water radiometry in shallow coastal waters

被引:31
作者
Hooker, SB [1 ]
Zibordi, G
Berthon, JF
Brown, JW
机构
[1] NASA, Goddard Space Flight Ctr, Lab Hydrospher Proc, Greenbelt, MD 20771 USA
[2] Inst Environm & Sustainabil, Joint Res Ctr, I-21020 Ispra, Italy
[3] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Dept Meteorol & Phys Oceanog, Miami, FL 33149 USA
关键词
D O I
10.1364/AO.43.004254
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Above- and in-water radiometric data were collected from two coastal platforms: a small boat and an oceanographic tower. The above-water data were processed with and without a correction for bidirectional effects (Q02 and S95, respectively). An intercomparison of water-leaving radiances over a wide range of environmental conditions showed (a) total uncertainties across the blue-green domain were to within 4%, (b) a convergence of the Q02 method with the in-water method (average Q02 intercomparisons were to within 4%), and (c) chlorophyll a concentrations derived from Q02 reflectances and the OC4V4 (Ocean Color 4 Version 4) algorithm agreed with independent high-performance liquid-chromatography determinations to within approximately 32%. (C) 2004 Optical Society of America.
引用
收藏
页码:4254 / 4268
页数:15
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