Articles | Volume 19, issue 9
Research article
17 May 2019
Research article |  | 17 May 2019

A numerical process study on the rapid transport of stratospheric air down to the surface over western North America and the Tibetan Plateau

Bojan Škerlak, Stephan Pfahl, Michael Sprenger, and Heini Wernli


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Michael Sprenger on behalf of the Authors (31 Mar 2019)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (17 Apr 2019) by Rolf Müller
RR by Allen Lefohn (24 Apr 2019)
RR by Suzanne L. Gray (03 May 2019)
ED: Publish subject to technical corrections (03 May 2019) by Rolf Müller
Short summary
Upper-level fronts are often associated with the rapid transport of stratospheric air to the lower troposphere, leading to significantly enhanced ozone concentrations. This paper considers the multi-scale nature that is needed to bring stratospheric air down to the surface. The final transport step to the surface can be related to frontal zones and the associated vertical winds or to near-horizontal tracer transport followed by entrainment into a growing planetary boundary layer.
Final-revised paper