Articles | Volume 2, issue 2
Weather Clim. Dynam., 2, 507–534, 2021
https://doi.org/10.5194/wcd-2-507-2021
Weather Clim. Dynam., 2, 507–534, 2021
https://doi.org/10.5194/wcd-2-507-2021

Research article 24 Jun 2021

Research article | 24 Jun 2021

The three-dimensional life cycles of potential vorticity cutoffs: a global and selected regional climatologies in ERA-Interim (1979–2018)

Raphael Portmann et al.

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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 Raphael Portmann on behalf of the Authors (24 Feb 2021)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (03 Mar 2021) by Juliane Schwendike
RR by Anonymous Referee #1 (14 Mar 2021)
RR by Anonymous Referee #2 (17 Mar 2021)
RR by Anonymous Referee #3 (01 Apr 2021)
ED: Publish subject to minor revisions (review by editor) (20 Apr 2021) by Juliane Schwendike
AR by Raphael Portmann on behalf of the Authors (30 Apr 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (27 May 2021) by Juliane Schwendike
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Short summary
We explore the three-dimensional life cycle of cyclonic structures (so-called PV cutoffs) near the tropopause. PV cutoffs are frequent weather systems in the extratropics that lead to high-impact weather. However, many unknowns exist regarding their evolution. We present a new method to track PV cutoffs as 3D objects in reanalysis data by following air parcels along the flow. We study the climatological life cycles of PV cutoffs in detail and propose a classification into three types.