Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL084041 |
Segmentation of SED by Boundary Flows Associated With Westward Drifting Partial Ring current | |
Wang, Zihan; Zou, Shasha; Coppeans, Thomas; Ren, Jiaen; Ridley, Aaron; Gombosi, Tamas | |
2019-07-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:14页码:7920-7928 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The segmentation mechanism of polar cap patches is agreed to be related to temporal changes of interplanetary magnetic field or transient reconnection. In this letter, using Global Ionosphere Thermosphere Model driven by two-way coupled Block-Adaptive-Tree-Solarwind-Roe-Upwind-Scheme and Rice Convection Model, a new segmentation mechanism is proposed. This mechanism works as follows: A strong boundary flow between the Region 1 and Region 2 field-aligned currents develops, while a shielding process develops in the inner magnetosphere. As the partial ring current drifts westward, the peak of the boundary flow also moves westward. This strong boundary flow raises the ion temperature through enhanced frictional heating, enhances the chemical recombination reaction rate, and reduces the electron density. When this boundary flow crosses the storm-enhanced density (SED) plume, the plume will be segmented into patches. No external interplanetary magnetic field variations or transient reconnections are required in this mechanism. |
英文关键词 | polar cap patch partial ring current Birkeland current boundary flow |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000481818900007 |
WOS关键词 | POLAR-CAP PATCH ; PLASMA ; STORM ; RADAR ; PRECIPITATION ; ORIGIN |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/185270 |
专题 | 气候变化 |
作者单位 | Univ Michigan, Dept Climate & Space Sci & Engn, Ann Arbor, MI 48109 USA |
推荐引用方式 GB/T 7714 | Wang, Zihan,Zou, Shasha,Coppeans, Thomas,et al. Segmentation of SED by Boundary Flows Associated With Westward Drifting Partial Ring current[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(14):7920-7928. |
APA | Wang, Zihan,Zou, Shasha,Coppeans, Thomas,Ren, Jiaen,Ridley, Aaron,&Gombosi, Tamas.(2019).Segmentation of SED by Boundary Flows Associated With Westward Drifting Partial Ring current.GEOPHYSICAL RESEARCH LETTERS,46(14),7920-7928. |
MLA | Wang, Zihan,et al."Segmentation of SED by Boundary Flows Associated With Westward Drifting Partial Ring current".GEOPHYSICAL RESEARCH LETTERS 46.14(2019):7920-7928. |
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