AIRS infrared polarization sensitivity and in-flight observations

Thomas S. Pagano; Hartmut H. Aumann; Denis Elliott; Steven E. Broberg

doi:10.1117/12.557435

26 October 2004 AIRS infrared polarization sensitivity and in-flight observations

Thomas S. Pagano, Hartmut H. Aumann, Denis Elliott, Steven E. Broberg

Proceedings Volume 5542, Earth Observing Systems IX; (2004) https://doi.org/10.1117/12.557435
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

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 mm 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.

Citation Download Citation

Thomas S. Pagano, Hartmut H. Aumann, Denis Elliott, and Steven E. Broberg "AIRS infrared polarization sensitivity and in-flight observations", Proc. SPIE 5542, Earth Observing Systems IX, (26 October 2004); https://doi.org/10.1117/12.557435

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