Articles | Volume 24, issue 9
https://doi.org/10.5194/acp-24-5457-2024
https://doi.org/10.5194/acp-24-5457-2024
Research article
 | 
08 May 2024
Research article |  | 08 May 2024

Quasi-biennial oscillation modulation of stratospheric water vapour in the Asian monsoon

Cristina Peña-Ortiz, Nuria Pilar Plaza, David Gallego, and Felix Ploeger

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Short summary
Although water vapour (H2O) in the lower stratosphere is only a few molecules among 1 million air molecules, atmospheric radiative forcing and surface temperature are sensitive to changes in its concentration. Monsoon regions play a key role in H2O transport and its concentration in the lower stratosphere. We show how the quasi-biennial oscillation (QBO) has a major impact on H2O over the Asian monsoon during August through changes in temperature caused by QBO modulation of tropical clouds.
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