Enhancement of High Energy Electron Fluxes and Variation of Atmospheric Electric Field in the Antarctic Region ormalsize |
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| Institution: | 1.State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing 1001902.College of Earth Sciences, University of Chinese Academy of Sciences, Beijing 1000493.Key Laboratory of Geographic Information Science, Education Administration, East China Normal University, Shanghai 200062 |
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| Abstract: | High-energy electron precipitation in the high latitude regions enhances the ionization of the atmosphere, and subsequently increases the atmospheric conductivities and the vertical electric field of the atmosphere near the ground as well. The High-Energy Electron Flux (HEEF) data measured by the Fengyun-3 meteorological satellite are analyzed together with the data of near-surface atmospheric vertical electric field measured at the Russian Vostok Station. Three HEEF enhancements are identified and it is shown that when the HEEF increases to a certain level, the local atmospheric vertical electric field near the ground can increase substantially than usual. The response time of the electric field to HEEF enhancement is about 3.7 to 4 days. |
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