Preprints
https://doi.org/10.5194/egusphere-2023-2353
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/egusphere-2023-2353
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
19 Oct 2023
| 19 Oct 2023
Status: this preprint is open for discussion and under review for Weather and Climate Dynamics (WCD).
WCD Ideas: Teleconnections through weather rather than stationary waves
Clemens Spensberger
CORRESPONDING AUTHOR
Geophysical Institute, University of Bergen, and Bjerknes Centre for Climate Research, Bergen, Norway
Abstract. Conventionally, teleconnections in the atmosphere are described by correlations between monthly mean fields. These correlations are supposedly caused by stationary Rossby waves. The main hypothesis explored in this idea is that teleconnections are instead established by chains of events on synoptic time scales, that is by weather. Instead I hypothesise that non-stationary Rossby waves play an important role in establishing teleconnections. If these hypotheses are correct, much of the vast literature on this topic misses an essential part of the atmospheric dynamics leading to teleconnections.
How to cite. Spensberger, C.: WCD Ideas: Teleconnections through weather rather than stationary waves, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2023-2353, 2023.
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Clemens Spensberger
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Short summary
It is well-established that variations in convection in the tropical Indo-Pacific can influence weather in far-away regions. In this idea, I argue that the main theory used to explain this influence over large distances is incomplete. I propose hypotheses that could lead the way towards a more fundamental explanation, and outline a novel approach that could be used to test the hypotheses I raise. The suggested approach might be useful to address also other long-standing questions.
It is well-established that variations in convection in the tropical Indo-Pacific can influence...