The ionospheric signature of flux transfer events
The ionospheric signature of flux transfer events
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DOI：
10.1029/ja092ia04p03207
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发表时间：
1987-04
影响因子：
--
通讯作者：
D. Southwood
中科院分区：
文献类型：
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作者：
D. Southwood
作者研究了连接行星际磁场和地球磁场的孤立磁通管的运动，该磁通管是通过在白天磁层顶重新连接而产生的。这些管子应该在电离层的底部形成独特的局部流动模式。讨论了观察效果。有人认为，与信息从重连点传播到电离层的时间相对应的一分钟或更长时间的延迟时间很重要，并且可以控制通量传递事件的产生。据预测，Pc 5 频带中的磁脉动很可能在紧邻新连接的管的闭合通量管上建立。
The author examines the motion of an isolated flux tube connecting the interplanetary and terrestrial magnetic field that has been created by reconnection at the dayside magnetopause. Such tubes should create a distinct localized flow pattern at their feet in the ionosphere. Observational effects are discussed. It is argued that the delay time of the order of a minute or more corresponding to the time for propagation of information from the reconnection site to the ionosphere is important and could control the creation of flux transfer events. It is predicted that magnetic pulsations in the Pc 5 frequency band are likely to be set up on closed flux tubes immediately neighboring the newly connected tubes.