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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >EMICWaves in the Earth's Inner Magnetosphere as a Function of Solar Wind Structures During Solar Maximum
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EMICWaves in the Earth's Inner Magnetosphere as a Function of Solar Wind Structures During Solar Maximum

机译：EMICWaves地球磁层内部太阳风在太阳能结构的函数最大

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摘要

Here we analyze the statistics of electromagnetic ion cyclotron (EMIC) waves observed in the Earth's inner magnetosphere during coronal mass ejection (CME), high-speed stream (HSS), and quiet solar wind (QSW) conditions in the upstream solar wind (SW). For our analysis we use the EMIC wave observations by the two Van Allen Probes during their first magnetic local time (MLT) revolution. The major results of our analysis are as follows: (1) Criteria to identify the HSS, CME, and QSW conditions in the SW are formulated. (2) 54%, 36%, and 10% of EMIC wave events are observed during CME, HSS, and QSW, respectively. (3) 12% of events are closely associated with the fast growth of magnetospheric compression, among which 76%, 24%, and 0% are observed during CME, HSS, and QSW, respectively. (4) A majority of the QSW, HSS-driven, and CME-driven events is observed in the 9–12, 12–24, and 8–24 hr MLT sectors, respectively. (5) CME-driven events are distributed along all L shells, whereas the majority of the HSS-driven and QSW events are confined to L > 3.5. (6) The fractions of events during CME and HSS have a maximum in the near-equatorial region, whereas the fractions of the QSW events have a minimum there. (7) Independent of the SW driver, no strong events are observed below the local O~+ gyrofrequency, whereas 65–70% and 30–35% of events are observed between the O~+ and He+ gyrofrequencies and above the He~+ gyrofrequency, respectively.
机译：我们分析电磁的统计数据离子回旋波(位的)观察到的地球内部的磁气圈在日冕物质抛射,高速流(HSS),安静的太阳风(QSW)上游的条件太阳风(SW)。波观测两范艾伦辐射探测器在他们的第一个磁(MLT)当地时间革命。如下:(1)标准确定高速钢,芝加哥商品交易所,QSW SW制定的条件。(2) 54%、36%、和10%的波位的事件观察到在芝加哥商品交易所、高速钢和QSW分别。(3) 12%的事件是密切相关的之间的磁性层的压缩、快速增长76%, 24%, 0%是在芝加哥商品交易所,高速钢,QSW分别。QSW、HSS-driven CME-driven事件在9 - 12,12 - 24日到24日人力资源传输行业,分别。分布在所有L壳,而大多数HSS-driven QSW事件局限于L > 3.5。在芝加哥商品交易所和高速钢有一个最大的近赤道地区,而分数QSW事件有一个最低。独立的软件驱动程序,没有强大的事件下面观察当地O ~ +旋转频率,而65 - 70%和30 - 35%的事件O ~ +, +旋转频率和以上他~ +旋转频率,分别。

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