globalchange  > 气候减缓与适应
DOI: 10.1002/grl.50434
论文题名:
Global distribution of equatorial magnetosonic waves observed by THEMIS
作者: Ma Q.; Li W.; Thorne R.M.; Angelopoulos V.
刊名: Geophysical Research Letters
ISSN: 0094-9090
EISSN: 1944-8821
出版年: 2013
卷: 40, 期:10
起始页码: 1895
结束页码: 1901
语种: 英语
英文关键词: Magnetosonic waves ; THEMIS observation
Scopus关键词: Earth's radiation belts ; Energetic electron ; Geomagnetic activities ; Global distribution ; Magnetic field data ; Magnetic local time ; Magnetosonic waves ; THEMIS observation ; Geomagnetism ; Radiation belts ; Spacecraft ; amplitude ; data set ; electron ; geomagnetic field ; magnetic field ; magnetosphere ; radiation balance ; statistical analysis
英文摘要: We investigate the wave magnetic field data from three THEMIS spacecraft over the recent 31 months to perform a statistical study of equatorial magnetosonic (MS) wave properties and spatial distribution. The THEMIS spacecraft provide good data coverage in the dominant MS wave region near the equator and at 2≤L≤8. Our global survey shows that strong amplitudes and high occurrence of MS waves are generally observed near the equator, outside the plasmapause, on the dawnside during geomagnetically disturbed periods. In addition, increase of geomagnetic activity shifts the MS wave distribution toward earlier magnetic local time. Strong MS waves generally have RMS wave amplitudes ∼50 pT and an occurrence rate ∼20% on the dawnside outside the plasmapause and could therefore have an important influence on both ring current ion and energetic electron dynamics in the Earth's radiation belts. © 2013 American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879897885&doi=10.1002%2fgrl.50434&partnerID=40&md5=244e70658e9ce7dc7e89a54e7b474c3f
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6354
Appears in Collections:气候减缓与适应

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作者单位: Atmospheric and Oceanic Department, University of California, Los Angeles, Mathematical Sciences Building 7984, Los Angeles, CA 90095, United States

Recommended Citation:
Ma Q.,Li W.,Thorne R.M.,et al. Global distribution of equatorial magnetosonic waves observed by THEMIS[J]. Geophysical Research Letters,2013-01-01,40(10).
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