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Total electron content of the ionosphere during thegeomagnetic storm on 10 January 1997
Institution:1. DLR e. V., DFD/Fernerkundungsstation, Kalkhorstweg 53,D-17235 NeustrelitzGermany;2. GMV, C/Isaac Newton 11, P.T.M. Tres Cantos, 28760 MadridSpain;1. State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences, No. 1 Zhongguancun Nanertiao, Haidian District, Beijing 100190, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. Institute of Solar-Terrestrial Physics, Russian Academy of Sciences, Lermontov st., 126a, Irkutsk 664033, Russia;1. Space Science and Application Research Development Department, Entoto Observatory and Research Center (EORC), Ethiopian Space Science and Technology Institute (ESSTI), Addis Ababa, Ethiopia;2. Washera Geospace and Radar Science Laboratory, Physics Department, Bahir Dar University, Bahir Dar, Ethiopia;3. Climate and Space Sciences and Engineering, University of Michigan, USA;1. Pakistan Space and Upper Atmosphere Research Commissions (SUPARCO), Karachi, Pakistan;2. Theoretical Research Institute, Pakistan Academy of Sciences (TRIPAS), Islamabad, Pakistan;1. Institute of Solar-Terrestrial Physics of Siberian Branch of Russian Academy of Sciences, Irkutsk 664033, Russia;2. West Department of Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, RAS, Kaliningrad 236017, Russia;3. Immanuel Kant Baltic Federal University, Department of Radiophysics and Information Safety, Kaliningrad 236000, Russia;4. Geophysical Center, RAS, 119296 Moscow, Russia;5. Space Research Institute, RAS, 117997 Moscow, Russia;1. Department of Space Science and Application, Entoto Observatory and Research Center, Ethiopian Space Science and Technology Institute, Addis Ababa, Ethiopia;2. Washera Geospace and Radar Science Laboratory, Physics Department, Bahir Dar University, Bahir Dar, Ethiopia;3. Climate and Space Sciences and Engineering, University of Michigan, USA
Abstract:Measurements at GPS ground stations of the International GPS Service (IGS) havebeen used to derive the total electron content (TEC) of the ionosphere over Europe and overthree North American stations for the 6–11 January 1997 storm event. The derived TEC dataindicate large deviations from the average behaviour especially at high latitudes on thenight-side/early morning longitude sector.The high-latitude perturbation causes a well-pronounced positive phase on the day-sidesector over Europe.Both meridional winds as well as transient electric fields are assumed to contribute to thesignature of the ionospheric perturbation propagating from high to low latitudes. Theobservations indicate a subsequent enhanced plasma loss which is probably due to theequatorward expansion of storm induced composition changes.
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