In situ observations of EMIC waves in O+ band by the Van Allen Probe A
In situ observations of EMIC waves in O+ band by the Van Allen Probe A
复制标题
范艾伦探针 A 对 O 波段 EMIC 波的原位观测
DOI:
10.1002/2015gl063250
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发表时间:
2015-03
影响因子:
5.2
通讯作者:
J. R. Wygant
中科院分区:
文献类型:
--
作者:
Yu Xiongdong;Zhigang Yuan;Dedong Wang;Haimeng Li;Shiyong Huang;Zhenzhen Wang;Zhen Qiao;Mingxia Zhou;C. A. Kletzing;J. R. Wygant
Through polarization and spectra analysis of the magnetic field observed by the Van Allen Probe A, we present two typical cases of O+ band electromagnetic ion cyclotron (EMIC) waves in the outer plasmasphere or plasma trough. Although such O+ band EMIC waves are rarely observed, 18 different events of O+ band EMIC waves (16 events in the outer plasmasphere and two events in the plasma trough) are found from September 2012 to August 2014 with observations of the Van Allen Probe A. We find that the preferred region for the occurrence of O+ band EMIC waves is in L = 2–5 and magnetic local time = 03–13, 19–20, which is in accordance with the occurrence region of O+ ion torus. Therefore, our result suggests that the O+ ion torus in the outer plasmasphere during geomagnetic activities should play an important role in the generation of EMIC waves in O+ band.
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影响因子:
2.8
作者:
Fraser, B. J.;Grew, R. S.;Thomsen, M. F.
通讯作者:
Thomsen, M. F.
影响因子:
--
作者:
Jichun Zhang;L. Kistler;C. Mouikis;M. Dunlop;B. Klecker;J. Sauvaud
通讯作者:
Jichun Zhang;L. Kistler;C. Mouikis;M. Dunlop;B. Klecker;J. Sauvaud
影响因子:
5.2
作者:
Usanova, M. E.;Drozdov, A.;Wygant, J.
通讯作者:
Wygant, J.
影响因子:
--
作者:
J. Rauch;A. Roux
通讯作者:
J. Rauch;A. Roux
影响因子:
--
作者:
Jichun Zhang;L. Kistler;C. Mouikis;B. Klecker;J. Sauvaud;M. Dunlop
通讯作者:
Jichun Zhang;L. Kistler;C. Mouikis;B. Klecker;J. Sauvaud;M. Dunlop