On large‐scale wave structure and equatorial spread F without a post‐sunset rise of the F layer
On large‐scale wave structure and equatorial spread F without a post‐sunset rise of the F layer
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DOI：
10.1029/2009gl042357
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发表时间：
2010-04
影响因子：
5.2
通讯作者：
R. Tsunoda;D. Bubenik;S. Thampi;M. Yamamoto
中科院分区：
文献类型：
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作者：
R. Tsunoda;D. Bubenik;S. Thampi;M. Yamamoto
大尺度波结构（LSWS）和等离子体结构，被称为赤道扩展F（ESF），第一次显示在一个晚上，当F层的日落后上升（PSSR）不存在时发展。使用电离图从两个附近的位置，连同测量的总电子含量，LSWS和ESF也被证明是共存的区域，地理上有界的。这些结果表明LSWS（以及PSSR）在ESF发生的日常变化中不可否认的重要性，以及需要使用电动力学的二维描述。
Large‐scale wave structure (LSWS) and the plasma structure, referred to as equatorial spread F (ESF), are shown, for the first time, to develop on a night, when the post‐sunset rise (PSSR) of the F layer was absent. Using ionograms from two nearby locations, together with measurements of total electron content, LSWS and ESF are also shown to coexist in regions that are bounded geographically. These results point to the undeniable importance of LSWS (as well as the PSSR) in the day‐to‐day variability in occurrence of ESF, and a need to use of a two‐dimensional description of the electrodynamics.