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Numerical sensitivity analysis of passive EHF and SMMW channels to tropospheric water vapor, clouds, and precipitationPotential uses of specific extremely High Frequency (EHF) and Sub-Millimeter-Wave (SMMW) channels at 90, 166, 183, 220, 325, 340, and 410 GHz for passive spaceborne remote sensing of the troposphere and lower stratosphere are investigated using an iterative numerical radiative transfer model. Collectively, these channels offer potential for high spatial resolution imaging using diffraction-limited apertures of practical size, along with the ability to profile water vapor, map precipitation beneath optically opaque cloud cover, and to measure nonprecipitating cloud (e.g., cirrus) parameters. A widely-spaced set of EHF and SMMW channels can yield observable degrees of freedom related to clouds and precipitation not available by exclusively using the more thoroughly studied microwave channels below 183 GHz. A new passive airborne imaging instrument for tropospheric meteorological sensing is described.
Document ID
19930035719
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Gasiewski, A. J.
(Georgia Inst. of Technology Atlanta, United States)
Date Acquired
August 15, 2013
Publication Date
September 1, 1992
Publication Information
Publication: IEEE Transactions on Geoscience and Remote Sensing
Volume: 30
Issue: 5
ISSN: 0196-2892
Subject Category
Communications And Radar
Accession Number
93A19716
Funding Number(s)
CONTRACT_GRANT: NAG5-1332
CONTRACT_GRANT: NAG5-1490
Distribution Limits
Public
Copyright
Other

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