Is this a phenomenon of the Earth itself, or is it a reaction to external influence, solar wind or ?
https://phys.org/news/2021-07-sudden-st ... phere.html
Weather is a tricky science—even more so at very high altitudes, with a mix of plasma and neutral particles.
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 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.
In an SSW-caused anomaly, changes over the pole cause changes in the opposite hemisphere. This important interhemispheric linkage was identified as drastic shifts at altitudes greater than 100 km—for example, in total electron content (TEC) measurements as well as variations in the thermospheric O/N2 ratio.
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Since this phenomenon involves a very large change in total electron content in the ionosphere, and results in an influence on local weather in the troposphere on the opposite side of the planet, what EM forces are in play here and if the N and S magnetic poles of Earth have something to do with it, how does this cause opposite ends of the planet to affect each other? What is the overall mechanism of this ??
Is this a phenomenon of the Earth itself, or is it a reaction to external influence, solar wind or ?
https://phys.org/news/2021-07-sudden-stratospheric-affected-northern-hemisphere.html
Weather is a tricky science—even more so at very high altitudes, with a mix of plasma and neutral particles.
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 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.
In an SSW-caused anomaly, changes over the pole cause changes in the opposite hemisphere. This important interhemispheric linkage was identified as drastic shifts at altitudes greater than 100 km—for example, in total electron content (TEC) measurements as well as variations in the thermospheric O/N2 ratio.
------------------------------
Since this phenomenon involves a very large change in total electron content in the ionosphere, and results in an influence on local weather in the troposphere on the opposite side of the planet, what EM forces are in play here and if the N and S magnetic poles of Earth have something to do with it, how does this cause opposite ends of the planet to affect each other? What is the overall mechanism of this ??