West wall structuring of equatorial plasma bubbles simulated by three‐dimensional HIRB model

DOI Web Site Web Site 被引用文献9件 参考文献34件
  • T. Yokoyama
    National Institute of Information and Communications Technology Koganei Japan
  • H. Jin
    National Institute of Information and Communications Technology Koganei Japan
  • H. Shinagawa
    National Institute of Information and Communications Technology Koganei Japan

書誌事項

公開日
2015-10
資源種別
journal article
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/2015ja021799
公開者
American Geophysical Union (AGU)

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説明

<jats:title>Abstract</jats:title><jats:p>Plasma density depletions in the equatorial ionosphere, or so‐called equatorial plasma bubbles (EPBs), are generated in the postsunset period and tend to have a very complex spatial structure. Especially, the east‐west asymmetry of EPBs has been reported by various observations. Using a high‐resolution bubble (HIRB) model, which is a newly developed three‐dimensional numerical model for the equatorial ionosphere, small‐scale structuring at the west wall of large‐scale <jats:italic>F</jats:italic> layer upwelling is clearly reproduced for the first time. It is not an eastward neutral wind but a vertical shear of zonal plasma drift velocity at the bottomside of the <jats:italic>F</jats:italic> region that plays an important role in accelerating the instability growth at the west wall and generating the east‐west asymmetry of EPBs.</jats:p>

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