Model calculation and analysis of magnetosphere-ionosphere-thermosphere coupling |
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| Institution: | 1. Department of Geophysics, Peking University, Beijing 100871, China;2. The Academy of Arts of China, Beijing 100009, China;1. Kyoto University Health Service, Japan;2. Department of Psychiatry, Nihon University School of Medicine, Japan;3. Department of Pathology of Mental Diseases, National Institute of Mental Health, National Center of Neurology and Psychiatry, Japan;4. Department of Neuropsychiatry, Kyorin University School of Medicine, Japan;5. Department of Psychiatry, Graduate School of Biomedical Science, Tokushima University, Japan;6. Department of Psychiatry, Dokkyo Medical University School of Medicine, Japan;7. Department of Forensic Psychiatry, National Center Hospital, National Center of Neurology and Psychiatry, Japan;8. Department of Psychiatry, Faculty of Medicine, Fukuoka University, Japan;9. Department of Neuropsychiatry, Molecules and Function, Ehime University Graduate School of Medicine, Japan;10. Department of Psychiatry, Tokyo Women''s Medical University, Japan;11. Department of Neuroimaging Psychiatry, Graduate School of Medical Sciences, Kyushu University, Japan;12. Department of Psychiatry, Tohoku University Hospital, Japan;13. Department of Neuropsychiatry, Akita University Graduate School of Medicine, Japan;14. Department of Psychiatry, Yokohama City University Graduate School of Medicine, Japan;15. Department of Neuropsychiatry Kanazawa Medical University, Japan;p. Department of Neuropsychiatry, Graduate School of Medicine, University of the Ryukyus, Japan;q. Department of Psychiatry, Shinshu University School of Medicine, Japan;r. Department of Psychiatry, Gifu University Graduate School of Medicine, Japan;s. Medical Corporation Foster, Japan;t. Center for Postgraduate Clinical Training and Career Development, Nagoya University Hospital, Japan;u. Department of Psychiatry, Hokkaido University Graduate School of Medicine, Japan;v. Department of Neuropsychiatry, University of Tokyo Hospital, Japan;w. Department of Neuropsychiatry, Hyogo College of Medicine, Japan |
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| Abstract: | Model calculations are used to analyse the function of the magnetosphere-ionosphere electrodynamic coupling and that of the ionospheric tide-dynamo. The phenomena concerned are discussed.It is shown that for geomagnetic and ionospheric research in low-latitude and equatorial regions, the penetration and shielding of magnetospheric disturbances should be taken into account. On the other hand, the effect of the tidal dynamo on the ionosphere of the auroral region should not be ignored, especially on geomagnetically disturbed days when the conductivity is very high. The features and the relative importance of these two effects are different at different stages of a magnetic storm, and depend on latitude. There is an evident dawn-dusk asymmetry in these effects. The influence of weak geomagnetic disturbances on the low-latitude ionosphere should also be taken into account. |
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