Articles | Volume 18, issue 17
https://doi.org/10.5194/acp-18-12639-2018
https://doi.org/10.5194/acp-18-12639-2018
Research article
 | 
31 Aug 2018
Research article |  | 31 Aug 2018

Detection of a climatological short break in the polar night jet in early winter and its relation to cooling over Siberia

Yuta Ando, Koji Yamazaki, Yoshihiro Tachibana, Masayo Ogi, and Jinro Ukita

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Latest update: 19 Sep 2024
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Short summary
We found the climatological strong stratospheric westerly circumpolar wind stops increasing temporarily during November, when the upward propagation of large-scale atmospheric waves from the troposphere increases. The propagation of atmospheric waves, which is strongest over Siberia, is related to strengthening of the low pressure. Longitudinally asymmetric forcing by land–sea heating contrasts caused by their different heat capacities might cause the strengthening of the low pressure.
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