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
收藏
页码：45 / 52
页数：8
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