Dependence of sporadic-E layer and lower thermosphere dynamics on solar activity |
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| Affiliation: | 1. Department of Solar and Space Research, National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Egypt;2. Space Weather Monitoring Center (SWMC), Faculty of Science, Helwan University, Egypt;3. German Aerospace Center (DLR), Institute of Communications and Navigation, Neustrelitz, Germany;4. Laboratoire de Physique des Plasmas, UMPC Sorbonne Paris, 4 Avenue de Neptune, 97107 Saint-Maur-des-Fossés, France;5. T/ICT4D, ICTP, Strada Costiera 11, I - 34151 Trieste, Italy;6. Microwave Department, The School: Telecom-Bretagne of Brest, France;7. Astronomy Department, National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Egypt;1. CRESS, York University, 4700 Keele Street, Toronto, Ontario, Canada M3J 1P3;2. Department of Physics, University of New Brunswick, P.O. Box 4400, Fredericton, New Brunswick, Canada E3B 5A3;3. Department of Physics, Murmansk State Technical University, 13 Sportivnaya Street, Murmansk 183010, Russia;1. Faculty of Education, Mus Alparslan University, 49250 Mus, Turkey;2. Technical Science Vocational School, Mus Alparslan University, 49100 Mus, Turkey |
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| Abstract: | The influence of solar activity level on frequency and stochastic sporadic-E layer parameters is considered for station Moscow (56 N, 37 E) during three solar cycles (1958–1988). Es layers with various intensity levels and times of appearance were considered separately. Some regularities of sporadic-E layer reaction to variations of solar activity are revealed. An explanation of the revealed regularities is offered in terms of dynamic processes of the neutral atmosphere. |
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