Open AccessInfluence of the stratospheric polar vortex on the Barents Sea ice extent in early 2012
Author(s) -
В. В. Зуев,
E. S. Savelieva
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/386/1/012002
Subject(s) - polar vortex , sudden stratospheric warming , sea ice , polar , troposphere , environmental science , climatology , arctic , vortex , atmospheric sciences , stratosphere , arctic ice pack , geology , oceanography , meteorology , physics , astronomy
A significant decrease in the sea ice extent in the Barents Sea was observed in February 2012 due to a large increase in Arctic surface temperature. In early January 2012 a sudden stratospheric warming occurred simultaneously with a stratospheric polar vortex displacement. Based on the ERA-Interim reanalysis data, we show that the displacement of the stratospheric polar vortex led to a perturbation and splitting of the tropospheric polar vortex. An inflow of warm air masses into the polar region, mainly over the Barents Sea, occurred during the splitting of the tropospheric vortex, which resulted in an increase in Arctic surface temperature and a decrease in the sea ice extent.