Atmos. Chem. Phys. Discuss., 9, 6541-6569, 2009
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This discussion paper has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP.
Evolution, current capabilities, and future advances in satellite ultra-spectral IR sounding
W. L. Smith Sr.1,2, H. Revercomb1, G. Bingham3, A. Larar4, H. Huang1, D. Zhou4, J. Li1, X. Liu4, and S. Kireev2
1University of Wisconsin, Madison, Wisconsin, USA
2Hampton University, Hampton, Virginia, USA
3Space Dynamics laboratory, Logan, Utah, USA
4NASA Langley Research Center, Hampton, Virginia, USA

Abstract. Infrared ultra-spectral spectrometers have brought in a new era of satellite remote atmospheric sounding capability. During the 1970's, after the implementation of the first satellite sounding instruments, it became evident that much higher vertical resolution sounding information was needed to be able to forecast life and property threatening localized severe weather. The demonstration of the ultra-spectral radiance measurement technology required to achieve higher vertical resolution began in 1985, with the aircraft flights of the High-resolution Interferometer Sounder (HIS) instrument. The development of satellite instruments designed to have a HIS-like measurement capability was initiated in the late 1980's. Today, after more than a decade of development time, the Atmospheric Infrared Sounder (AIRS) and the Infrared Atmospheric Sounding Interferometer (IASI) are now operating successfully from the Aqua and MetOp polar orbiting satellites, respectively. The successful development and ground demonstration of the Geostationary Imaging Fourier Transform Spectrometer (GIFTS), during this decade, is now paving the way toward future implementation of the ultra-spectral sounding capability on the international system of geostationary environmental satellites.

Citation: Smith Sr., W. L., Revercomb, H., Bingham, G., Larar, A., Huang, H., Zhou, D., Li, J., Liu, X., and Kireev, S.: Evolution, current capabilities, and future advances in satellite ultra-spectral IR sounding, Atmos. Chem. Phys. Discuss., 9, 6541-6569, doi:10.5194/acpd-9-6541-2009, 2009.
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