We analyzed the magnetospheric global response to dynamic pressure pulses (DPPs) using the Heliophysics System Observatory (HSO) and ground magnetometers. During northward Interplanetary Magnetic Field (IMF) Bz conditions, the magnetosphere acts as a closed “cavity” and reacts to solar wind DPPs more simply than during southward IMF. In this study we use solar wind data collected by ACE and WIND together with magnetic field observations of Geotail, Cluster, Time History of Events and Macroscale Interactions during Substorms (THEMIS), Magnetospheric Multiscale Mission (MMS), Van Allen Probes, GOES missions, and ground magnetometer arrays to observe the magnetosphere (dayside, nightside, inner magnetosphere, magnetotail, magnetosheath, etc.) and ionosphere response simultaneously in several local time sectors and regions. A total of 37 events were selected during the period between February 2007 to December 2017. We examine the global response of each event and identify systematic behavior of the magnetosphere due to DPPs' compression, such as MHD wave propagation, sudden impulses, and Ultra Low Frequency waves (ULF) in the Pc5 range. Our results confirm statistical studies with a more limited coverage that have been performed at different sectors and/or regions of the magnetosphere. We present observations of the different signatures generated in different regions that propagate through the magnetosphere. The signature of the tailward traveling DPP is observed to move at the same solar wind speed, and in superposition of other known magnetospheric perturbations. It is observed that the DPP also generates or increases the amplitude of Pc4‐5 waves observed in the inner magnetosphere, while similar waves are observed on the ground.

中文翻译：

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利用太阳物理系统天文台对北向IMF期间全球磁层对太阳风动态压力脉冲的响应

我们使用太阳物理系统天文台（HSO）和地面磁力计分析了磁层对动态压力脉冲（DPP）的整体响应。在北向行星际磁场（IMF）Bz条件下，与南向IMF相比，磁层充当封闭的“空腔”，并且对太阳风DPP的反应更为简单。在这项研究中，我们使用ACE和WIND收集的太阳风数据以及地尾，星团，事件的时间历史和亚暴期间的宏观相互作用（THEMIS），磁层多尺度任务（MMS），Van Allen Probes，GOES任务，和地面磁力计阵列，以同时在几个局部时间段和区域中观测磁层（白天，夜晚，内部磁层，磁尾，磁石等）和电离层响应。在2007年2月至2017年12月期间，总共选择了37个事件。我们检查了每个事件的整体响应，并确定了由于DPP压缩而引起的磁层的系统行为，例如MHD波传播，突然脉冲和超低Pc5范围内的频率波（ULF）。我们的结果证实了在磁层的不同扇区和/或区域进行的统计研究的覆盖范围有限。我们提出了在通过磁层传播的不同区域中产生的不同特征的观察结果。观察到向后移动的DPP的特征以相同的太阳风速运动，并且与其他已知的磁层扰动重叠。