Polar ionosphere and geomagnetic response for the flux transfer events: A case study |
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Authors: | Y. Pang X.H. Deng Z.G. Yuan M. Zhou M.H. Lin Z.W. Shu S.Y. Li J.F. Wang A. Balogh |
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Affiliation: | 1. Department of Space Physics, Wuhan University, 430079, PR China;2. Space and Atmospheric Physics, Blackett Laboratory, Imperial College, London SW7 2BZ, UK |
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Abstract: | On April 15th 2003, Cluster crossed the dayside magnetopause boundary and observed a series flux transfer events (FTEs) during the interval from 0630 to 0730 UT. During this period, the interplanetary magnetic field (IMF) showed a negative z component and a positive y component. Simultaneous corresponding transient plasma flows were identified in the near-conjugate polar ionosphere by the CUTLASS Finland HF radar, and the geomagnetic field disturbances were observed by the IMAGE ground-based magnetometers. By combing these data and applying the Cooling model, we show that the transient plasma flows and the geomagnetic field disturbances are closely related to the dayside FTEs. |
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Keywords: | FTE Geomagnetic disturbance Ionosphere convection |
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