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Proceedings Paper

Validation of Atmospheric InfraRed Sounder (AIRS) spectral radiances with the Scanning High-resolution Interferometer Sounder (S-HIS) aircraft instrument
Author(s): David C. Tobin; Henry E. Revercomb; Chris C. Moeller; Robert O. Knuteson; Fred A. Best; William L. Smith; Paul van Delst; Daniel D. LaPorte; Scott D. Ellington; Mark D. Werner; Ralph G. Dedecker; Raymond K. Garcia; Nick N. Ciganovich; Hugh Benjamin Howell; Steven B. Dutcher; Joe K. Taylor
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Paper Abstract

The ability to accurately validate high spectral resolution infrared radiance measurements from space using comparisons with aircraft spectrometer observations has been successfully demonstrated. The demonstration is based on an under-flight of the Atmospheric Infrared Sounder (AIRS) on the NASA Aqua spacecraft by the Scanning High resolution Interferometer Sounder (S-HIS) on the NASA ER-2 high altitude aircraft on 21 November 2002 and resulted in brightness temperature differences approaching 0.1K for most of the spectrum. This paper presents the details of this AIRS/S-HIS validation case and also presents comparisons of Aqua AIRS and Moderate Resolution Imaging Spectroradiometer (MODIS) radiance observations. Aircraft comparisons of this type provide a mechanism for periodically testing the absolute calibration of spacecraft instruments with instrumentation for which the calibration can be carefully maintained on the ground. This capability is especially valuable for assuring the long-term consistency and accuracy of climate observations. It is expected that aircraft flights of the S-HIS and its close cousin the National Polar Orbiting Environmental Satellite System (NPOESS) Atmospheric Sounder Testbed (NAST) will be used to check the long-term stability of the NASA EOS spacecrafts (Terra, Aqua and Aura) and the follow-on complement of operational instruments, including the Cross-track Infrared Sounder (CrIS).

Paper Details

Date Published: 30 November 2004
PDF: 10 pages
Proc. SPIE 5571, Remote Sensing of Clouds and the Atmosphere IX, (30 November 2004); doi: 10.1117/12.566060
Show Author Affiliations
David C. Tobin, Univ. of Wisconsin/Madison (United States)
Henry E. Revercomb, Univ. of Wisconsin/Madison (United States)
Chris C. Moeller, Univ. of Wisconsin/Madison (United States)
Robert O. Knuteson, Univ. of Wisconsin/Madison (United States)
Fred A. Best, Univ. of Wisconsin/Madison (United States)
William L. Smith, NASA Langley Research Ctr. (United States)
Paul van Delst, Univ. of Wisconsin/Madison (United States)
Daniel D. LaPorte, Univ. of Wisconsin/Madison (United States)
Scott D. Ellington, Univ. of Wisconsin/Madison (United States)
Mark D. Werner, Univ. of Wisconsin/Madison (United States)
Ralph G. Dedecker, Univ. of Wisconsin/Madison (United States)
Raymond K. Garcia, Univ. of Wisconsin/Madison (United States)
Nick N. Ciganovich, Univ. of Wisconsin/Madison (United States)
Hugh Benjamin Howell, Univ. of Wisconsin/Madison (United States)
Steven B. Dutcher, Univ. of Wisconsin/Madison (United States)
Joe K. Taylor, Univ. of Wisconsin/Madison (United States)


Published in SPIE Proceedings Vol. 5571:
Remote Sensing of Clouds and the Atmosphere IX
Adolfo Comeron; Michel R. Carleer; Richard H. Picard; Nicolaos I. Sifakis, Editor(s)

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