Articles | Volume 20, issue 14
https://doi.org/10.5194/acp-20-9115-2020
https://doi.org/10.5194/acp-20-9115-2020
Research article
 | 
31 Jul 2020
Research article |  | 31 Jul 2020

Representation of the equatorial stratopause semiannual oscillation in global atmospheric reanalyses

Yoshio Kawatani, Toshihiko Hirooka, Kevin Hamilton, Anne K. Smith, and Masatomo Fujiwara

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Short summary
This paper reports on a project to compare the representation of the semiannual oscillation (SAO) among six major global atmospheric reanalyses and with recent satellite observations. The differences among the zonal mean zonal wind as represented by the various reanalyses display a prominent equatorial maximum that increases with height. It is shown that assimilation of satellite temperature measurements is crucial for the realistic representation of the tropical upper stratospheric circulation.
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