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Influence of the QBO on tropical convection and its extratropical teleconnections in boreal winter

Urheber*innen

Andrews,  Martin
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Knight,  Jeff
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Scaife,  Adam
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Zitation

Andrews, M., Knight, J., Scaife, A. (2023): Influence of the QBO on tropical convection and its extratropical teleconnections in boreal winter, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-3917


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020630
Zusammenfassung
The sub-seasonal influence of the QBO on the tropical tropospheric organised convection associated with the MJO remains a topic of interest despite the general difficulty in simulating the relationship in atmospheric models. In this study we use GloSea5 seasonal hindcasts to address this question. By expanding the analysis to seasonal timescales, and accounting for ENSO, we reveal the relationship between the QBO and the tropical west Pacific outgoing longwave radiation both in recent observations and our seasonal hindcasts in boreal winter. The significance of this relationship, and influence on the extratropical circulation is examined.