Articles | Volume 12, issue 1
Earth Syst. Dynam., 12, 83–101, 2021
https://doi.org/10.5194/esd-12-83-2021
Earth Syst. Dynam., 12, 83–101, 2021
https://doi.org/10.5194/esd-12-83-2021

Research article 18 Jan 2021

Research article | 18 Jan 2021

Stratospheric ozone and quasi-biennial oscillation (QBO) interaction with the tropical troposphere on intraseasonal and interannual timescales: a normal-mode perspective

Breno Raphaldini et al.

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Several recent studies suggest a modulation of the Madden–Julian oscillation (MJO) by the quasi-biennial oscillation (QBO). The physics behind this interaction, however, remain poorly understood. In this study, we investigated the QBO–MJO interaction and the role of stratospheric ozone as a forcing mechanism. A normal-mode decomposition procedure combined with causality analysis reveals significant interactions between MJO-related modes and QBO-related modes.
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