How Rossby wave breaking modulates the water  cycle in the North Atlantic trade wind region

Aemisegger, Franziska; Vogel, Raphaela; Graf, Pascal; Dahinden, Fabienne; Villiger, Leonie; Jansen, Friedhelm; Bony, Sandrine; Stevens, Bjorn; Wernli, Heini

doi:https://doi.org/10.5194/wcd-2-281-2021

Articles | Volume 2, issue 1

https://doi.org/10.5194/wcd-2-281-2021

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

https://doi.org/10.5194/wcd-2-281-2021

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

Articles | Volume 2, issue 1

Research article

| Highlight paper

|

29 Mar 2021

Research article | Highlight paper |

| 29 Mar 2021

How Rossby wave breaking modulates the water cycle in the North Atlantic trade wind region

Franziska Aemisegger, Raphaela Vogel, Pascal Graf, Fabienne Dahinden, Leonie Villiger, Friedhelm Jansen, Sandrine Bony, Bjorn Stevens, and Heini Wernli

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Final revised paper (published on 29 Mar 2021)
Supplement to the final revised paper
Preprint (discussion started on 12 Oct 2020)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Referee Comment', Anonymous Referee #1, 09 Nov 2020
RC2: 'Review of wcd-2020-51', Anonymous Referee #2, 14 Nov 2020
AC1: 'Comment on wcd-2020-51', Franziska Aemisegger, 15 Jan 2021

Peer-review completion

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

AR by Franziska Aemisegger on behalf of the Authors (20 Jan 2021) Author's response Author's tracked changes Manuscript

ED: Publish as is (30 Jan 2021) by Tim Woollings

AR by Franziska Aemisegger on behalf of the Authors (12 Feb 2021)

Short summary

The interaction of clouds in the trade wind region with the atmospheric flow is complex and at the heart of uncertainties associated with climate projections. In this study, a natural tracer of atmospheric circulation is used to establish a link between air originating from dry regions of the midlatitudes and the occurrence of specific cloud patterns. Two pathways involving transport within midlatitude weather systems are identified, by which air is brought into the trades within 5–10 d.