The impact of volcanic eruptions of different magnitude on stratospheric water vapor in the tropics

Kroll, Clarissa Alicia; Dacie, Sally; Azoulay, Alon; Schmidt, Hauke; Timmreck, Claudia

doi:https://doi.org/10.5194/acp-21-6565-2021

Articles | Volume 21, issue 8

https://doi.org/10.5194/acp-21-6565-2021

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

Special issue:

The Model Intercomparison Project on the climatic response...

https://doi.org/10.5194/acp-21-6565-2021

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

Articles | Volume 21, issue 8

Research article

|

01 May 2021

Research article |

| 01 May 2021

The impact of volcanic eruptions of different magnitude on stratospheric water vapor in the tropics

Clarissa Alicia Kroll, Sally Dacie, Alon Azoulay, Hauke Schmidt, and Claudia Timmreck

Data sets

Supplementary Material to "The impact of volcanic eruptions of different magnitude on stratospheric water vapour in the tropics" C. A. Kroll https://pure.mpg.de/pubman/faces/ViewItemOverviewPage.jsp?itemId=item_3270686

The Arctic polar vortex response to volcanic forcing of different strengths (https://pure.mpg.de/pubman/item/item_3270673_8/component/file_3314921/JGR-D_Azoulay-2021.tar.gz?mode=download) A. Azoulay, H. Schmidt, and C. Timmreck http://hdl.handle.net/21.11116/0000-0007-8B38-E

atmtools/konrad: A radiative-convective equilibrium model for Python L. Kluft and S. Dacie https://doi.org/10.5281/zenodo.2597967

Short summary

Volcanic forcing is counteracted by stratospheric water vapor (SWV) entering the stratosphere as a consequence of aerosol-induced cold-point warming. We find that depending on the emission strength, aerosol profile height and season of the eruption, up to 4 % of the tropical aerosol forcing can be counterbalanced. A power function relationship between cold-point warming/SWV forcing and AOD in the yearly average is found, allowing us to estimate the SWV forcing for comparable eruptions.