Poker Flat MST radar observations of high latitude neutral winds at the mesopause during and after solar proton events |
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| Institution: | 1. Space Physics Research Laboratory, University of Michigan, Ann Arbor, MI 48109, U.S.A.;2. Institute of Geophysics and Planetary Physics, UCLA Los Angeles, CA 90024, U.S.A.;1. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066000, China;2. Hebei Province Engineering Research Center for Harmless Synergistic Treatment and Recycling of Municipal Solid Waste, Yanshan University, Qinhuangdao 066004, China;3. Department of Civil Engineering, Qinghai University, Xining 810016, China;4. Columbia University, New York, NY, USA;5. University of Cambridge, United Kingdom;1. School of Engineering and Materials Science, Institute of Bioengineering, Queen Mary University of London, Mile End, London E1 4NS, UK;2. Centre for Cancer and Inflammation, Barts Cancer Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK;1. Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan;2. Department of Production Engineering, Faculty of Industrial and Technology, Rajamangala University of Technology Rattanakosin, WANG KLAI KANG WON Campus, Hua Hin, Pra-Chub-Kiri-Khan 77110, Thailand;3. Department of Mechanical Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan;1. The Ubuntu Center on Racism, Global Movements, and Population Health Equity, Drexel University Dornsife School of Public Health, Philadelphia, PA, USA;2. Department of Sociology, Harvard University, Cambridge, MA, USA;3. Department of Sociology, Boston University, Boston, MA, USA;4. Department of Sociology, Columbia University, New York, NY, USA |
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| Abstract: | Observations with the Poker Flat, Alaska, MST radar during and after solar proton events in 1982 and 1984 suggest that winds in the altitude range of ~ 80–90 km were altered as a consequence of the influx of energetic charged particles and large electric fields at high latitudes. The atmospheric changes accompanying these events appear to result in a reduction of the semidiurnal tide and an enhancement in the diurnal tide. It is suggested that these changes could result from the alteration of the local tidal heating distribution produced by the particle precipitation, either through changes in the local ozone distribution or as a result of mesospheric Joule heating. |
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