Equatorial ionization anomaly of the total electron content and equatorial electrojet of ground-based geomagnetic field strength |
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| Institution: | 1. Institute of Space Science, National Central University, Chung-Li, Taiwan;2. Center for Space and Remote Sensing Research, National Central University, Chung-Li, Taiwan;3. Department of Earth and Planetary Sciences, Kyushu University, Japan;4. Plasma and Space Science Center, National Cheng Kung University, Tainan, Taiwan;5. High Altitude Observatory, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000, USA;1. University of Sheffield, Sheffield S1 3JD, UK;2. Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;3. Hokkaido University, 060-0810 Sapporo, Japan;4. National Cheng-Kung University, Taiwan City 701, Taiwan;5. Kyoto University, Uji, Kyoto 611-0011, Japan;1. EMBRACE, Instituto Nacional de Pesquisas Espaciais, São José dos Campos, São Paulo, Brazil;2. GRRP/CGED, Instituto Brasileiro de Geografia e Estatística (IBGE), Rio de Janeiro, Brazil;3. Solar-Terrestrial Environment Laboratory (STEL), Nagoya University, Nagoya, Japan;4. Universodade Estadual Paulista, Presidente Prudente, São Paulo, Brazil;1. Kaliningrad Department of IZMIRAN, 41 Pobeda Av., 236010, Kaliningrad, Russia;2. Institut de Physique du Globe de Paris, 75013, Paris, France;3. COSMIC Program Office, University Corporation for Atmospheric Research, Boulder, Colorado, USA;1. Pwani University, School of Pure and Applied Sciences, Department of Mathematics and Physics, P.O. Box 195-80108, Kilifi, Kenya;2. Department of Physics, Lancaster University, Lancaster, UK;3. South African National Space Agency, Space Science Directorate, P.O. Box 32, Hermanus, South Africa;4. Kenya Technical University, School of Pure and Applied Sciences, Department of Physics, P.O. Box 52428-00200, City Square, Nairobi, Kenya;5. Department of Physics, Catholic University of America, Washington, DC 20064, USA;6. NASA Goddard Space Flight Center, Greenbelt, MD 20770, USA;7. Department of Physics University of Nairobi, P.O. Box 30197, GPO, Nairobi, Kenya;1. Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital 263129, India;2. School of EEE, Nanyang Technological University, Singapore 639798, Singapore;3. Atmospheric Research Lab., Department of Physics, Banaras Hindu University, Varanasi 221005, India;4. Dept. of Aerospace Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea |
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| Abstract: | Measurements from ground-based receiver chains of the global positioning system (GPS) and magnetometers of the Circum-pan Pacific Magnetometer Network (CPMN) in the west Pacific region during 1999–2003 are examined. The ionospheric total electron content (TEC) derived from the GPS receivers is used to observe the strength, location, and occurrence time of the equatorial ionization anomaly (EIA) crests, which resulted from the equatorial plasma E×B drift fountain. The magnetic field strength of CPMN is employed to monitor the equatorial electrojet (EEJ), and to further estimate the effectiveness of the E×B drift to the EIA crests. Results show that the strength and location of the EIA crests are proportional to the EEJ strength. |
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