Journal of the Meteorological Society of Japan. Ser. II
Online ISSN : 2186-9057
Print ISSN : 0026-1165
ISSN-L : 0026-1165
3-Level Model Constructed to Control the Retrogression of Ultra-Long Waves
Yasushi Okamura
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1965 Volume 43 Issue 6 Pages 293-301

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Abstract

The conception of the artificial control of retrogressive ultra-long waves, as shown by Wiin-Nielsen, is applied to the entire heights of the atmosphere, and then the essential condition to control the retrogression is obtained. The condition is that the variation of the isobaric height must vanish at the top of the atmosphere, if the static stability is proportional to p-2.
Using this upper boundary assumption, the simplest 3-level model is constructed and is compared with Wiin-Nielsen's model. These are similar in the result, but some ambiguities of the so-called μ term are excluded in our model.
Lastly the physical meanings of the upper boundary assumption are considered. As the result, it is inferred that such a condition exists in the stratosphere.

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