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首页> 外文会议>2014 31st URSI General Assembly and Scientific Symposium >Characteristics of dayside magnetospheric flows during solar wind dynamic pressure pulse
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Characteristics of dayside magnetospheric flows during solar wind dynamic pressure pulse

机译：太阳风动压力脉冲下日磁层的流动特征

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摘要

The response scenario of dayside magnetospheric plasma flows to the sudden increase of solar wind dynamic pressures was studied with 5 events from THEMIS observation. In all events we observed bipolar Vx(−/+) signatures as a response. The inferred flow vortices presented to be rotating clockwise and counterclockwise in the morning and afternoon side, respectively, as see from the north. Moreover, the pre and after noon flow vortices move toward −y and +y direction. The in situ observation of dayside plasmasheet flow vortices may provide a new possible mechanism for the solar wind dynamic impulse associated dayside ionospheric convection vortices.
机译：利用THEMIS观测到的5个事件研究了日磁层等离子体流对太阳风动态压力突然增加的响应情况。在所有情况下，我们都观察到双极Vx（-/ +）信号作为响应。从北侧看，推断的涡流分别在早晨和下午沿顺时针和逆时针旋转。此外，正午前后的涡流都向-y和+ y方向移动。日间等离子体板流涡旋的原位观测可能为太阳风动力脉冲相关的日间电离层对流涡旋提供新的可能机制。

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