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The influence of the equatorial QBO on sudden stratospheric warmingsA global primitive-equation model of the stratosphere and mesosphere is integrated for specified planetary-wave forcing at the 100-mb level with mean zonal flow conditions corresponding to the westerly and easterly phases of the equatorial QBO, respectively. The responses in the two QBO phases were compared for integrations with wavenumber-1 forcing-amplitude maxima at 100 mb and 60 deg N varying from 100 to 400 m. The phase of the QBO had little effect on the results in the weak-wave (100-m) cases, which did not produce warmings, and strong-wave (400-m) cases, which produced major sudden warmings.
Document ID
19910045760
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Holton, James R.
(Washington Univ. Seattle, WA, United States)
Austin, John
(Washington, University Seattle, United States)
Date Acquired
August 14, 2013
Publication Date
February 15, 1991
Publication Information
Publication: Journal of the Atmospheric Sciences
Volume: 48
ISSN: 0022-4928
Subject Category
Meteorology And Climatology
Accession Number
91A30383
Funding Number(s)
CONTRACT_GRANT: NSF ATM-88-13971
CONTRACT_GRANT: NAS5-26301
Distribution Limits
Public
Copyright
Other

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