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Proceedings Paper

Evaluation of high-resolution atmospheric sounder designs
Author(s): Joe A. Jenney
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Paper Abstract

Temperature and humidity sounding of the atmosphere from polar orbit meteorological satellites is currently carried out by combining data from infrared and microwave sounding radiometers. The High Resolution Infrared Sounder, the current operational infrared sounder, has 20 channels and accomplishes spectral separation with a filter wheel. This small number of channels limits the accuracy and vertical resolution of sounding and is thereby one of the limiting factors to the accuracy of numerical weather prediction. Studies have shown that infrared sounders with 1000 to 2000 channels can provide the desired 1 K accuracy and 1 km vertical resolution. NASA is developing the Atmospheric Infrared Sounder, which uses gratings for spectral separation. There are several infrared sounders under development that use Michelson interferometers for spectral separation.

Paper Details

Date Published: 23 December 1994
PDF: 12 pages
Proc. SPIE 2309, Passive Infrared Remote Sensing of Clouds and the Atmosphere II, (23 December 1994); doi: 10.1117/12.196701
Show Author Affiliations
Joe A. Jenney, ITT Defense and Electronics (United States)


Published in SPIE Proceedings Vol. 2309:
Passive Infrared Remote Sensing of Clouds and the Atmosphere II
David K. Lynch, Editor(s)

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