Cross calibration of ocean-color bands from Moderate Resolution Imaging Spectroradiometer on Terra platform

被引：97

作者：

Kwiatkowska, Ewa J. ^{[1
,2
]}

Franz, Bryan A. ^{[1
,2
]}

Meister, Gerhard ^{[1
,3
]}

McClain, Charles R. ^{[1
]}

Xiong, Xiaoxiong ^{[4
]}

机构：

[1] NASA, Goddard Space Flight Ctr, Ocean Biol Proc Grp, Greenbelt, MD 20771 USA

[2] Sci Applicat Int Corp, Beltsville, MD 20705 USA

[3] Futuretech Corp, Greenbelt, MD 20770 USA

[4] NASA, Goddard Space Flight Ctr, Moderate Resolut Imaging Spectroradiometer Charac, Greenbelt, MD 20771 USA

来源：

APPLIED OPTICS | 2008年 / 47卷 / 36期

关键词：

D O I：

10.1364/AO.47.006796

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Ocean-color applications require maxi main uncertainties in blue-wavelength water-leaving radiances in oligotrophic ocean of approximately 5%. Water-leaving radiances from Moderate Resolution Imaging Spectroradiometer (MODIS) on the Terra satellite, however, exhibit temporal drift of the order of 15% as well as sensor changes in response versus scan and polarization sensitivity, which cannot be tracked by onboard calibrators. This paper introduces an instrument characterization approach that uses Earth-view data as a calibration source. The approach models the top of the atmosphere signal over ocean that the instrument is expected to measure, including its polarization, with water-leaving radiances coming from another well-calibrated global sensor. The cross calibration allows for significant improvement in derived MODIS-Terra ocean-color products, with largest changes in the blue wavelengths. (C) 2008 Optical Society of America

引用

页码：6796 / 6810

页数：15

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