Atmospheric correction of ocean color sensors: analysis of the effects of residual instrument polarization sensitivity

被引：53
|
作者：
Gordon, HR
Du, T
Zhang, TM
机构：
[1] Department of Physics, University of Miami, Coral Gables, FL, 33124
来源：
APPLIED OPTICS | 1997年 / 36卷 / 27期
关键词：
D O I：
10.1364/AO.36.006938
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We provide an analysis of the influence of instrument polarization sensitivity on the radiance measured by spaceborne ocean color sensors. Simulated examples demonstrate the influence of polarization sensitivity on the retrieval of the water-leaving reflectance rho(w). A simple method for partially correcting for polarization sensitivity-replacing the linear polarization properties of the top-of-atmosphere reflectance with those from a Rayleigh-scattering atmosphere - is provided and its efficacy is evaluated. It is shown that this scheme improves rho(w) retrievals as long as the polarization sensitivity of the instrument does not vary strongly From band to band. Of course, a complete polarization-sensitivity characterization of the ocean color sensor is required to implement the correction. (C) 1997 Optical Society of America.
引用
收藏
页码：6938 / 6948
页数：11
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