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Proceedings Paper

Ground-based microwave remote sensing of water vapor in the mesosphere and stratosphere
Author(s): Charles L. Croskey; John J. Olivero; Joseph P. Martone
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Paper Abstract

A ground-based, portable microwave radiometer that will be used to measure water vapor in the 30-80-km altitude region, and is to operate 24 hr a day, is described. The thermally excited 22.235-GHz rotational-transition line of water vapor is employed. The emission from this region produces a signal with an apparent brightness temperature of the order 0.1 to 0.5 K. A steerable reflector is used to provide optimal viewing angles, depending on the geographic location and season. Periodic tipping curve scans by this reflector permit determination of the amount of tropospheric correction that is applied to the data. All local oscillators in the receiver are crystal-controlled so that narrow-band spectral analysis of the received line shape can be performed.

Paper Details

Date Published: 1 September 1991
PDF: 12 pages
Proc. SPIE 1491, Remote Sensing of Atmospheric Chemistry, (1 September 1991); doi: 10.1117/12.46673
Show Author Affiliations
Charles L. Croskey, The Pennsylvania State Univ. (United States)
John J. Olivero, The Pennsylvania State Univ. (United States)
Joseph P. Martone, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 1491:
Remote Sensing of Atmospheric Chemistry
James L. McElroy; Robert J. McNeal, Editor(s)

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