Influence of increased activity of planetary waves on the Arctic polar vortex dynamics in winter 2018/2019

Vladimir V. Zuev; Ekaterina Savelieva; Alexey V. Pavlinsky

doi:10.1117/12.2599028

15 December 2021 Influence of increased activity of planetary waves on the Arctic polar vortex dynamics in winter 2018/2019

Vladimir V. Zuev, Ekaterina Savelieva, Alexey V. Pavlinsky

Author Affiliations +

Proceedings Volume 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 1191676 (2021) https://doi.org/10.1117/12.2599028
Event: 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2021, Moscow, Russian Federation

Abstract

The Arctic stratospheric polar vortex usually forms in autumn, reaches its peak intensity in mid-winter and decays from late winter to spring. In most cases, the polar vortex breakdown occurs as a result of the penetration of vertically propagating planetary waves into the stratosphere and is accompanied by the occurrence of sudden stratospheric warmings. In the winter of 2018/2019, the vortex breakdown occurred in late December after increased wave activity for more than 10 days in the first half of winter. In this work, we examined the unusual dynamics of the Arctic polar vortex in the lower stratosphere in the winter of 2018/2019 using a new method based on the vortex delineation.

Citation Download Citation

Vladimir V. Zuev, Ekaterina Savelieva, and Alexey V. Pavlinsky "Influence of increased activity of planetary waves on the Arctic polar vortex dynamics in winter 2018/2019", Proc. SPIE 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 1191676 (15 December 2021); https://doi.org/10.1117/12.2599028

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