Solar cycle variation of the total electron content around equatorial anomaly crest region in east asia |
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| Institution: | 1. Laboratory of Analytical Chemistry, School of Chemistry, Faculty of Sciences, Aristotle University of Thessaloniki, GR-54124, Greece;2. Laboratory of Pharmaceutical Analysis, Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, GR-54124, Greece;1. Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, Moscow, Russia;2. Bauman Moscow State Technical University, Moscow, Russia;3. Peoples’ Friendship University of Russia (RUDN University), Moscow, Russia;1. Nanomedicine Research Laboratories, Center for Materials Science, Zewail City of Science and Technology, Giza, Egypt;2. Food Hygiene Department, Animal Health Research Institute (AHRI), Agricultural Research Center, Giza, Egypt;1. National key Laboratory of Human Machine and Environment Engineering, School of Aeronautical Science and Engineering, Beihang University, Beijing, 100191, China;2. School of Chemical and Process Engineering, University of Leeds, Leeds, UK;1. Share My Space, 17 rue Burnouf, 75019, Paris, France;2. Laboratoire de Physique des Plasmas (LPP), UMR CNRS 764, Ecole Polytechnique, Route de Saclay, 91128, Palaiseau, France;1. Cosmology, Space Science and Space Technology, Scuola Superiore Meridionale, Largo S. Marcellino 10, Naples, 80138, Italy;2. Department of Aerospace Engineering, Embry-Riddle Aeronautical University, 1 Aerospace Boulevard, Daytona Beach, FL, 32114, United States |
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| Abstract: | The monthly mean hourly values of total electron content data obtained at Lunping Observatory (geographic coordinates 25.00°N, 121.17°E; geomagnetic coordinates 14.3°N, 191.3°E) by using the ETS2 satellite beacon signal during the period from March 1977 to December 1990 have been used to analyze the solar cycle variations of total electron content (TEC) around equatorial anomaly crest region in East Asia. Positive, correlations were found between the 12 month running average of monthly mean TECs and sunspot numbers. By using the linear regression analysis method, the contour charts for real diurnal and seasonal variations of TEC at certain sunspot numbers were constructed and described. The diurnal variation of TEC was represented by the sum of its diurnal mean and first three harmonic components. The solar cycle variations of these components have also been discussed. |
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