Articles | Volume 20, issue 9
https://doi.org/10.5194/acp-20-5477-2020
https://doi.org/10.5194/acp-20-5477-2020
Research article
 | 
12 May 2020
Research article |  | 12 May 2020

Observational evidence of moistening the lowermost stratosphere via isentropic mixing across the subtropical jet

Jeffery Langille, Adam Bourassa, Laura L. Pan, Daniel Letros, Brian Solheim, Daniel Zawada, and Doug Degenstein

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Cited articles

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de Forster, P. M. F. and Shine, K. P.: Assessing the climate impact of trends in stratospheric water vapour, Geophys. Res. Lett., 29, 10-1–10-4, https://doi.org/10.1029/2001gl013909, 2002. 
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Short summary
Water vapour (WV) is a highly variable and extremely important trace gas in Earth’s atmosphere. Due to its radiative and chemical properties, it is coupled to the climate in an extremely complex manner. This is especially true in the lowermost stratosphere (LMS). Despite its importance, the physical processes that control mixing and the distribution of WV in the LMS are poorly understood. This study provides observational evidence of moistening the LMS via mixing across the subtropical jet.
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