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Interpretation of ground-based radiometric observations in terms of a gravity wave modelAn analysis is presented of 2-hour and 4-hour segments of data taken at Denver, Colorado, on February 3, 1984, by a ground-based radiometer designed and operated by the Wave Propagation Laboratory of the National Oceanic and Atmospheric Administration (NOAA). The zenith-viewing instrument has two moisture-sensing and four temperature-sensing channels. It is demonstrated that a peak at a period of 10 min, present in the spectra of the measured brightness temperature and of the derived geopotential heights, thicknesses, and vertically integrated water vapor content, is due to an internal gravity wave generated by wind shear in the jet aloft. This analysis shows that the radiometer has the sensitivity to detect such disturbances and that the mathematical inversion technique used to retrieve the geopotential field and other integrated quantities retains the derived information as well. Finally, a linear expression is derived which relates the brightness temperature to the atmospheric temperature, density, humidity, and cloud liquid perturbation fields.
Document ID
19900048763
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Canavero, F. G.
(Torino, Politecnico Turin, Italy)
Einaudi, F.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Westwater, E. R.
(Politecnico di Torino Torino, Italy)
Falls, M. J.
(Politecnico di Torino Torino, Italy)
Schroeder, J. A.
(NOAA, Wave Propagation Laboratory, Boulder CO, United States)
Date Acquired
August 14, 2013
Publication Date
May 20, 1990
Publication Information
Publication: Journal of Geophysical Research
Volume: 95
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
90A35818
Funding Number(s)
CONTRACT_GRANT: NSF ATM-82-13784
CONTRACT_GRANT: DT-FA01-84-Z-02007
Distribution Limits
Public
Copyright
Other

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