Articles | Volume 21, issue 8
Atmos. Chem. Phys., 21, 6565–6591, 2021

Special issue: The Model Intercomparison Project on the climatic response...

Atmos. Chem. Phys., 21, 6565–6591, 2021

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 et al.

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Cited articles

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Azoulay, A., Schmidt, H., and Timmreck, C.: The Arctic polar vortex response to volcanic forcing of different strengths, J. Geophys. Res., submitted, further information available at: (last access: 20 November 2020), 2021 (primary data available at:, last access: 13 September 2019). a, b, c, d
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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.
Final-revised paper