PC 3,4 magnetic pulsations observed simultaneously in the magnetosphere and at multiple ground stations
PC 3,4 magnetic pulsations observed simultaneously in the magnetosphere and at multiple ground stations
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PC 3,4 在磁层和多个地面站同时观测到的磁脉动
DOI：
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发表时间：
1991
期刊：
影响因子：
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通讯作者：
C. Green
中科院分区：
文献类型：
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作者：
T. J. Odera;D. V. Swol;C. Russell;C. Green
研究了ISEE和地质科学研究所磁强计阵列之间的磁共轭周期，以寻找同时发生的Pc 3，4磁脉动。当在太空中看到压缩波时，也可以在地面上以相同的频率和相似的波形观察到波。中纬度地面上的波幅与ISEE空间中的波幅相似，但在高纬度，波幅大于空间中的波幅。在ISEE上出现的一次纯横向信号在地面上没有观察到。这些结果证实Pc 3，4.波能最容易通过压缩波动通过磁层传输。
Periods of magnetic conjugacy between ISEE and the magnetometer array of the Institute for Geological Sciences have been examined to search for the simultaneous occurrence of Pc 3,4 magnetic pulsations. When compressional waves are seen in space, waves are also observed on the ground at the same frequency and with similar waveforms. The wave amplitude on the ground at midlatitudes is similar to that in space at ISEE but at high latitudes the amplitudes are larger than in space. The one occurrence of a purely transverse signal at ISEE was not observed on the ground. These results confirm that Pc 3,4. wave energy is most readily transported through the magnetosphere by compressional fluctuations.