globalchange  > 科学计划与规划
DOI: 10.1002/2015GL063225
论文题名:
Energetic electron injections deep into the inner magnetosphere associated with substorm activity
作者: Turner D.L.; Claudepierre S.G.; Fennell J.F.; O'Brien T.P.; Blake J.B.; Lemon C.; Gkioulidou M.; Takahashi K.; Reeves G.D.; Thaller S.; Breneman A.; Wygant J.R.; Li W.; Runov A.; Angelopoulos V.
刊名: Geophysical Research Letters
ISSN: 0094-8829
EISSN: 1944-8560
出版年: 2015
卷: 42, 期:7
起始页码: 2079
结束页码: 2087
语种: 英语
英文关键词: energetic particle injections ; inner magnetosphere ; radiation belts ; substorms ; THEMIS ; Van Allen Probes
Scopus关键词: Electron injection ; Magnetosphere ; NASA ; Probes ; Radiation belts ; Dipolarization ; Energetic particle injections ; Frequency ranges ; Inner magnetosphere ; Magnetosonic waves ; Substorm activity ; Substorms ; THEMIS ; Electrons ; electron ; magnetosphere ; polarization ; storm
英文摘要: From a survey of the first nightside season of NASA's Van Allen Probes mission (December 2012 to September 2013), 47 energetic (tens to hundreds of keV) electron injection events were found at L shells ≤ 4, all of which are deeper than any previously reported substorm-related injections. Preliminary details from these events are presented, including how all occurred shortly after dipolarization signatures and injections were observed at higher L shells, how the deepest observed injection was at L ∼ 2.5, and, surprisingly, how L ≤ 4 injections are limited in energy to ≤250 keV. We present a detailed case study of one example event revealing that the injection of electrons down to L ∼ 3.5 was different from injections observed at higher L and likely resulted from electrons interacting with a fast magnetosonic wave in the Pi2 frequency range inside the plasmasphere. These observations demonstrate that injections occur at very low L shells and may play an important role for inner zone electrons. ©2015. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928697115&doi=10.1002%2f2015GL063225&partnerID=40&md5=be978011e05a65999c1930cbcc10e2ab
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8445
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Space Sciences Department, Aerospace Corporation, El Segundo, CA, United States

Recommended Citation:
Turner D.L.,Claudepierre S.G.,Fennell J.F.,et al. Energetic electron injections deep into the inner magnetosphere associated with substorm activity[J]. Geophysical Research Letters,2015-01-01,42(7).
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