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A parameterization of eddy transfer coefficients for two-level seasonal statistical dynamical zonally averaged modelsThis paper examines a parameterization of a quasi-geostrophic eddy transport that takes into account the time variation of eddy transfer coefficients according to Green's (1970) theory. It was found that, in the original eddy transfer relationship of Green, connecting the integral of the northward eddy entropy flux through midlatitudes with the second power of the difference in 500-mb entropy across the region of baroclinic activity, a value of 4 for the exponent is obtained when the temperature gradients at 500 mb are used. When the gradients at 1000 mb are used, an exponent of 1.5 is obtained. The differences in the powers in the eddy transfer relation were explored in a two-level zonally averaged model. It was found that an appropriate choice of power may be of special importance if the model is devised to simulate the seasonal climate cycle or to test astronomical changes inducing different seasonalities.
Document ID
19890063807
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Neeman, Binyamin U.
(Tel-Aviv Univ. Ramat-Aviv, Tel-Aviv, Israel)
Ohring, George
(Tel Aviv University Israel)
Joseph, Joachim H.
(NASA Goddard Space Flight Center Greenbelt, MD; Tel Aviv University, Israel)
Date Acquired
August 14, 2013
Publication Date
August 1, 1989
Publication Information
Publication: Journal of the Atmospheric Sciences
Volume: 46
ISSN: 0022-4928
Subject Category
Meteorology And Climatology
Accession Number
89A51178
Distribution Limits
Public
Copyright
Other

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