Abstract

This review summarizes middle atmosphere (stratosphere and mesosphere) research in the United States over a period from October 1982 to May 1986. Some important relevant works by foreign investigators are also included. Previous work is summarized in the IUGG report by Hartmann (1983). The reference list encompasses the relevant work although each individual paper may not be discussed in the text.The research topics discussed here cover all scales of motion in the stratosphere and mesosphere except for acoustic phenomena. The categories are: extratropical wave motions and instabilities (e.g., planetary to medium scale waves), gravity waves, tropical motions, the general circulation of the middle atmosphere and constituent transport where dynamically significant. These categories are not definitive. Nonetheless, this division of motion fields roughly follows historical precedence and the scaling approximations used in dynamical meteorology.

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