Potential Links Between Tropospheric and Stratospheric Circulation Extremes During Early 2020

February-March 2020 was marked by highly anomalous large-scale circulations in the Northern extratropical troposphere and stratosphere. The Atlantic jet reached extreme strength, linked to some of the strongest and most persistent positive values of the Arctic Oscillation index on record, which prov...

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Bibliographic Details
Published in:Journal of Geophysical Research: Atmospheres
Main Authors: Rupp, Philip, Löffel, Sheena, Garny, Hella, Chen, Xiaoyang, Pinto, Joaquim, Birner, Thomas
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2022
Subjects:
Erdsystem-Modellierung
Arctic
Online Access:https://elib.dlr.de/148733/
https://elib.dlr.de/148733/2/JGR%20Atmospheres%20-%202022%20-%20Rupp%20-%20Potential%20Links%20Between%20Tropospheric%20and%20Stratospheric%20Circulation%20Extremes%20During%20Early.pdf
https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2021JD035667
Description
Summary:February-March 2020 was marked by highly anomalous large-scale circulations in the Northern extratropical troposphere and stratosphere. The Atlantic jet reached extreme strength, linked to some of the strongest and most persistent positive values of the Arctic Oscillation index on record, which provided conditions for extreme windstorms hitting Europe. Likewise, the stratospheric polar vortex reached extreme strength that persisted for an unusually long period.

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