The integrated dayside merging rate is controlled primarily by the solar wind
The integrated dayside merging rate is controlled primarily by the solar wind
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综合日侧合并率主要由太阳风控制
DOI：
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发表时间：
2016
期刊：
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通讯作者：
R. Lopez
中科院分区：
文献类型：
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作者：
R. Lopez
一个参数提出来支持的观点，合并之间的地磁场和行星际磁场在昼侧磁层的速率主要是由太阳风参数控制。控制参数是地球参考系中的太阳风电场和太阳风磁声快模马赫数。这些因素的控制，以第一顺序的总磁通量所携带的磁鞘流的向阳面合并区。我们认为，全球向阳面合并率是由磁鞘流的通量，是交付到向阳面合并线。电离层电导也起着重要的作用，通过调制的形状磁层障碍周围的磁鞘流偏转。磁层顶的局部条件，特别是磁层等离子体密度的变化会影响局部重联率，但不会影响全球向阳面合并率，因为要改变全球合并率，必须改变整个磁鞘流的模式。这里提出的概念模型可以通过应用单一、统一的观点来解释昼侧合并如何取决于太阳风值，包括线性和非线性依赖关系，而不需要限制昼侧合并率的临时机制。
An argument is presented to support the view that the rate of merging between the geomagnetic field and the interplanetary magnetic field across the dayside magnetosphere is controlled primarily by the solar wind parameters. The controlling parameters are the solar wind electric field in the Earth's frame of reference and the solar wind magnetosonic fast mode Mach number. These factors control to first order the total amount of magnetic flux that is carried by the magnetosheath flow to the dayside merging region. We argue that the global dayside merging rate is governed by the amount of flux that is delivered to the dayside merging line by the magnetosheath flow. The ionospheric conductance also plays an important role by modulating the shape of the magnetospheric obstacle around which the magnetosheath flow is deflected. The local conditions at the magnetopause, especially changes in magnetospheric plasma density will affect the local reconnection rate, but not the global dayside merging rate because to change the global merging rate the entire pattern of magnetosheath flow must be changed. The conceptual model presented here can explain how dayside merging depends on solar wind values, including both linear and nonlinear dependencies, through the application of a single, unifying perspective, without the need for ad hoc mechanisms that limit the dayside merging rate.