AIRS infrared polarization sensitivity and in-flight observations

被引：2

作者：

Pagano, TS ^{[1
]}

Aumann, HH ^{[1
]}

Elliott, D ^{[1
]}

Broberg, SE ^{[1
]}

机构：

[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

来源：

EARTH OBSERVING SYSTEMS IX | 2004年 / 5542卷

关键词：

AIRS; atmosphere; ocean polarization; infrared;

D O I：

10.1117/12.557435

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The Atmospheric Infrared Sounder (AIRS) is a space-based instrument that measures the upwelling atmospheric spectrum in the infrared. AIRS is one of several instruments on the EOS-Aqua spacecraft launched on May 4, 2002. Typically, instrument polarization is not a concern in the infrared because the scene is usually not significantly polarized. A small amount of polarization is expected over ocean, which can be seen in the AIRS 3.7 mum window channels. The polarization is seen as a signal difference between two channels with the same center frequency but different polarizations. The observations are compared to a model that relies on measurements of instrument polarization made pre-flight. A first look at a comparison of the observations of sea surface polarization to expectations is presented.

引用

页码：45 / 52

页数：8

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