Observations and simulation of intense convection embedded in a warm conveyor belt – how ambient vertical wind shear determines the dynamical impact

Oertel, Annika; Sprenger, Michael; Joos, Hanna; Boettcher, Maxi; Konow, Heike; Hagen, Martin; Wernli, Heini

doi:https://doi.org/10.5194/wcd-2-89-2021

Articles | Volume 2, issue 1

https://doi.org/10.5194/wcd-2-89-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/wcd-2-89-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 2, issue 1

Research article

|

02 Feb 2021

Research article |

| 02 Feb 2021

Observations and simulation of intense convection embedded in a warm conveyor belt – how ambient vertical wind shear determines the dynamical impact

Annika Oertel, Michael Sprenger, Hanna Joos, Maxi Boettcher, Heike Konow, Martin Hagen, and Heini Wernli

Download

Final revised paper (published on 02 Feb 2021)
Preprint (discussion started on 09 Oct 2020)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

- Printer-friendly version

- Supplement

RC1: 'Review of WCD-2020-49', Derek J. Posselt, 04 Dec 2020
RC2: 'Review of “Observations and simulation of intense convection embedded in a warm conveyor belt – how ambient vertical wind shear determines the dynamical impact” by Oertel et al.', Jeffrey Chagnon, 16 Dec 2020
AC1: 'Comment on wcd-2020-49', Annika Oertel, 13 Jan 2021

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Annika Oertel on behalf of the Authors (13 Jan 2021) Author's response Manuscript

ED: Publish as is (15 Jan 2021) by Johannes Dahl

AR by Annika Oertel on behalf of the Authors (19 Jan 2021) Author's response Manuscript

Short summary

Convection embedded in the stratiform cloud band of strongly ascending airstreams in extratropical cyclones (so-called warm conveyor belts) can influence not only surface precipitation but also the upper-tropospheric potential vorticity (PV) and waveguide. The comparison of intense vs. moderate embedded convection shows that its strength alone is not a reliable measure for upper-tropospheric PV modification. Instead, characteristics of the ambient flow co-determine its dynamical significance.