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Originally posted by AndyMayhew
Originally posted by luxordelphi
What I mean is dynamic and electrically charged and intimately related to things like electrical storms and earthquakes on earth.
So the more extensive the ionosphere the more likely there will be electrical storms and earthquakes? Which, in turn, means electrical storms and earthquakes are much less likely to occur at night?
Not sure the data supports the hyposthesis?
Solar activity such as flares and coronal mass ejections often produce large variations in the particle and electromagnetic radiation incident upon the earth. Such variations can, in turn, lead to disturbances of the "quiet-time" magnetosphere and ionosphere.
These simulation results show the electron density in the ionosphere at 150km. The top two movies depict results of simulations that use a model of the magnetosphere and solar EUV radiation levels typical for solar maximum during the northern hemisphere summer. The bottom movies were generated with the same conditions but with a simulated geomagnetic storm. Features such as the increase in ionoization on the day side, the auroral oval, and the expansion of the oval can be seen.
The occurrence of quiet periods is strongly controlled by the solar zenith angle at the geomagnetic poles, indicating the importance of the ionospheric conductivity. During the dark polarseason, about 30% of the passes can be qualified as quiet.