Sensitivity of the Antarctic Polar Vortex to Temperature Changes in the Lower Subtropical Stratosphere

— Polar vortices play a significant role in the distribution of stratospheric ozone, the movement of air masses in the polar and subpolar stratosphere, and temperature changes over the polar region. An Antarctic polar vortex forms in autumn and reaches its peak intensity in early spring. In late spr...

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Bibliographic Details
Published in:Atmospheric and oceanic optics 2024-02, Vol.37 (1), p.99-102
Main Authors: Zuev, V. V., Maslennikova, E. A., Savelieva, E. S., Pavlinsky, A. V.
Format: Article
Language:English
Subjects:
Air masses
Atmospheric Radiation
Climate
Correlation analysis
Lasers
Optical Devices
Optical Weather
Optics
Ozone
Photonics
Physics
Physics and Astronomy
Polar environments
Polar regions
Polar vortex
Spring
Spring (season)
Stratosphere
Temperature effects
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Summary:— Polar vortices play a significant role in the distribution of stratospheric ozone, the movement of air masses in the polar and subpolar stratosphere, and temperature changes over the polar region. An Antarctic polar vortex forms in autumn and reaches its peak intensity in early spring. In late spring, when this vortex weakens, the influence of the lower subtropical stratosphere on it increases. We consider the effect of temperature changes in the lower subtropical stratosphere on the Antarctic polar vortex strengthening. Using correlation analysis and ARA5 reanalysis data, we show a significant increase in the effect of minor temperature changes in the lower subtropical stratosphere on the dynamics of an Antarctic polar vortex in the second half of November.
ISSN:1024-8560
2070-0393
DOI:10.1134/S1024856023700124