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Proceedings Paper

Multiorder etalon sounder for vertical temperature profiling: technique and performance analysis
Author(s): Jinxue Wang; Paul B. Hays; S. Roland Drayson
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Paper Abstract

In this paper a novel approach to high-resolution infrared atmospheric temperature sounding by using the multi-order etalon sounder (MOES) is discussed. The MOES exploits the periodic characteristics of Fabry-Perot interferometer (FPI) transmission function and the uniform line spacings of CO2 to maximize the instrument signal and to achieve the high-spectral resolution needed to improve the vertical resolution and retrieval accuracy of atmospheric temperature sounding. In this paper the MOES technique and a conceptual instrument design are presented. Suitable CO2 spectral regions, optimum etalon-free spectral ranges, characteristics of 44 representative temperature sounding channels and 12 water vapor sounding channels are calculated and discussed. Performance simulation studies indicate that MOES can provide more accurate temperature and water vapor profiles than the current operational high resolution infrared sounder (HIRS/2). The improvement in temperature and moisture retrieval accuracy with MOES is mainly due to its higher spectral resolution and the ability to resolve a single CO2 spectral line.

Paper Details

Date Published: 1 September 1991
PDF: 12 pages
Proc. SPIE 1492, Earth and Atmospheric Remote Sensing, (1 September 1991); doi: 10.1117/12.45861
Show Author Affiliations
Jinxue Wang, Univ. of Michigan (United States)
Paul B. Hays, Univ. of Michigan (United States)
S. Roland Drayson, Univ. of Michigan (United States)

Published in SPIE Proceedings Vol. 1492:
Earth and Atmospheric Remote Sensing
Robert J. Curran; James Alan Smith; Ken Watson, Editor(s)

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