Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL096970 |
Global Asymmetries of Hot Flow Anomalies | |
Yu Lin; Xueyi Wang; David G. Sibeck; Chih-Ping Wang; Sun-Hee Lee | |
2022-02-10 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2022 |
英文摘要 | A three-dimensional global hybrid simulation is conducted for the interaction of the Earth’s bow shock with an interplanetary directional tangential discontinuity (TD) whose normal lies in the equatorial plane. Although the convection electric field points into the TD from its trailing side both north and south of the equator, the interaction only generates a hot flow anomaly (HFA) in the southern hemisphere. HFA generation results from bow shock-reflected ions energized by the inward-pointing electric field on one side of the TD and inward ion gyration on the other side. The latter only occurs south of the equator due to the global bow shock geometry. The global HFA asymmetry is driven by a reversal in the north-south component of reflected ion velocities in the two hemispheres, such that ions gyrate into (away from) the TD in the southern (northern) hemisphere. Our results indicate HFAs must generally exhibit north-south and dawn-dusk asymmetries. |
领域 | 气候变化 |
URL | 查看原文 |
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/346767 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Yu Lin,Xueyi Wang,David G. Sibeck,et al. Global Asymmetries of Hot Flow Anomalies[J]. Geophysical Research Letters,2022. |
APA | Yu Lin,Xueyi Wang,David G. Sibeck,Chih-Ping Wang,&Sun-Hee Lee.(2022).Global Asymmetries of Hot Flow Anomalies.Geophysical Research Letters. |
MLA | Yu Lin,et al."Global Asymmetries of Hot Flow Anomalies".Geophysical Research Letters (2022). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论