Earth and Planetary Sciences
5 years ago

Siberian Ozone Depletion Shifts Arctic Polar Vortex, Intensifying Climate Impacts

Journal of Climate
The Influence of Zonally Asymmetric Stratospheric Ozone Changes on the Arctic Polar Vortex Shift
Jiankai Zhang, Wenshou Tian, Fei Xie, J. A. Pyle, James Keeble, Tao Wang

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The Arctic polar vortex has been shifting towards Siberia since 1980 due to changes in the ozone layer. This shift is caused by the uneven depletion of ozone over Siberia, leading to cooler temperatures and cyclonic winds in the region. The ozone changes also affect the flow of planetary waves, accelerating westerly winds in the stratosphere. These effects are more pronounced in February and were stronger in the period 1980-1999 compared to after 2000.