Grim Reaper 6 Posted July 26, 2021 #1 Share Posted July 26, 2021 In sudden stratospheric warmings (SSWs) — large meteorological disturbances related to the polar vortex in which the polar stratosphere temperature increases as it is affected by the winds around the pole — the polar vortex is weakened. SSWs also have profound atmospheric effects at great distances, causing changes in the hemisphere opposite from the location of the original SSW — changes that extend all the way to the upper thermosphere and ionosphere. A study published on July 16, 2021, in Geophysical Research Letters by MIT Haystack Observatory’s Larisa Goncharenko and colleagues examines the effects of a recent major Antarctic SSW on the Northern Hemisphere by studying changes observed in the upper atmosphere over North America and Europe. https://scitechdaily.com/how-a-sudden-stratospheric-warming-event-over-antarctica-affected-the-northern-hemisphere/ 2 Link to comment Share on other sites More sharing options...
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