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Mode conversion between Alfven and slow waves observed in the magnetotail by THEMIS
Du, J.; Zhang, T. L.; Nakamura, R.; Wang, C.; Baumjohann, W.; Du, A. M.; Volwerk, M.; Glassmeier, K. -H.; McFadden, J. P.; Du, J (reprint author), Austrian Acad Sci, Space Res Inst, Schmiedlstr 6, A-8042 Graz, Austria.
Department空间科学部
Source PublicationGEOPHYSICAL RESEARCH LETTERS
2011
Volume38Pages:L07101
ISSN0094-8276
Language英语
AbstractWe present the direct spacecraft observations of wave mode conversion in the magnetotail for the first time. On February 28, 2008, the satellites P4 and P3 of THEMIS observe wave signals with a period of about 100 s in the magnetotail at about 11 R-E. At the same time, geomagnetic activity is very quiet and there are no wave signals observed by the ground-based stations. From P4 observations, Alfven and slow mode waves are identified during two successive intervals, while the coexistence and slow wave regions are observed by P3. The mode conversion between the Alfven and slow mode waves takes place while THEMIS are crossing the central current sheet. The sharp curvature of the background magnetic field should be the primary reason of this mode conversion. Citation: Du, J., T. L. Zhang, R. Nakamura, C. Wang, W. Baumjohann, A. M. Du, M. Volwerk, K.-H. Glassmeier, and J. P. McFadden (2011), Mode conversion between Alfven and slow waves observed in the magnetotail by THEMIS, Geophys. Res. Lett., 38, L07101, doi: 10.1029/2011GL046989.; We present the direct spacecraft observations of wave mode conversion in the magnetotail for the first time. On February 28, 2008, the satellites P4 and P3 of THEMIS observe wave signals with a period of about 100 s in the magnetotail at about 11 R-E. At the same time, geomagnetic activity is very quiet and there are no wave signals observed by the ground-based stations. From P4 observations, Alfven and slow mode waves are identified during two successive intervals, while the coexistence and slow wave regions are observed by P3. The mode conversion between the Alfven and slow mode waves takes place while THEMIS are crossing the central current sheet. The sharp curvature of the background magnetic field should be the primary reason of this mode conversion. Citation: Du, J., T. L. Zhang, R. Nakamura, C. Wang, W. Baumjohann, A. M. Du, M. Volwerk, K.-H. Glassmeier, and J. P. McFadden (2011), Mode conversion between Alfven and slow waves observed in the magnetotail by THEMIS, Geophys. Res. Lett., 38, L07101, doi: 10.1029/2011GL046989.
Indexed BySCI ; EI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3306
Collection空间科学部
Corresponding AuthorDu, J (reprint author), Austrian Acad Sci, Space Res Inst, Schmiedlstr 6, A-8042 Graz, Austria.
Recommended Citation
GB/T 7714
Du, J.,Zhang, T. L.,Nakamura, R.,et al. Mode conversion between Alfven and slow waves observed in the magnetotail by THEMIS[J]. GEOPHYSICAL RESEARCH LETTERS,2011,38:L07101.
APA Du, J..,Zhang, T. L..,Nakamura, R..,Wang, C..,Baumjohann, W..,...&Du, J .(2011).Mode conversion between Alfven and slow waves observed in the magnetotail by THEMIS.GEOPHYSICAL RESEARCH LETTERS,38,L07101.
MLA Du, J.,et al."Mode conversion between Alfven and slow waves observed in the magnetotail by THEMIS".GEOPHYSICAL RESEARCH LETTERS 38(2011):L07101.
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