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DOI | 10.1002/2017GL076315 |
Asymmetric Kelvin-Helmholtz Instability at Jupiter's Magnetopause Boundary: Implications for Corotation-Dominated Systems | |
Zhang, B.1,2; Delamere, P. A.3; Ma, X.4; Burkholder, B.3; Wiltberger, M.1; Lyon, J. G.5; Merkin, V. G.6; Sorathia, K. A.6 | |
2018-01-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:1页码:56-63 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | The multifluid Lyon-Fedder-Mobarry (MFLFM) global magnetosphere model is used to study the interactions between solar wind and rapidly rotating, internally driven Jupiter magnetosphere. The MFLFM model is the first global simulation of Jupiter magnetosphere that captures the Kelvin-Helmholtz instability (KHI) in the critically important subsolar region. Observations indicate that Kelvin-Helmholtz vortices are found predominantly in the dusk sector. Our simulations explain that this distribution is driven by the growth of KHI modes in the prenoon and subsolar region (e.g., >10 local time) that are advected by magnetospheric flows to the dusk sector. The period of density fluctuations at the dusk terminator flank (18 magnetic local time, MLT) is roughly 1.4 h compared with 7.2h at the dawn flank (6 MLT). Although the simulations are only performed using parameters of the Jupiter's magnetosphere, the results may also have implications for solar wind-magnetosphere interactions at other corotation-dominated systems such as Saturn. For instance, the simulated average azimuthal speed of magnetosheath flows exhibit significant dawn-dusk asymmetry, consistent with recent observations at Saturn. The results are particularly relevant for the ongoing Juno mission and the analysis of dawnside magnetopause boundary crossings for other planetary missions. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000423431800007 |
WOS关键词 | SOLAR-WIND ; RECONNECTION ; TRANSPORT |
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/25771 |
专题 | 气候变化 |
作者单位 | 1.Natl Ctr Atmospher Res, High Altitude Observ, Pob 3000, Boulder, CO 80307 USA; 2.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China; 3.Univ Alaska Fairbanks, Inst Geophys, Fairbanks, AK 99775 USA; 4.Embry Riddle Aeronaut Univ, Phys Sci Dept, Daytona Beach, FL USA; 5.Dartmouth Coll, Dept Phys & Astron, Hanover, NH 03755 USA; 6.Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA |
推荐引用方式 GB/T 7714 | Zhang, B.,Delamere, P. A.,Ma, X.,et al. Asymmetric Kelvin-Helmholtz Instability at Jupiter's Magnetopause Boundary: Implications for Corotation-Dominated Systems[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(1):56-63. |
APA | Zhang, B..,Delamere, P. A..,Ma, X..,Burkholder, B..,Wiltberger, M..,...&Sorathia, K. A..(2018).Asymmetric Kelvin-Helmholtz Instability at Jupiter's Magnetopause Boundary: Implications for Corotation-Dominated Systems.GEOPHYSICAL RESEARCH LETTERS,45(1),56-63. |
MLA | Zhang, B.,et al."Asymmetric Kelvin-Helmholtz Instability at Jupiter's Magnetopause Boundary: Implications for Corotation-Dominated Systems".GEOPHYSICAL RESEARCH LETTERS 45.1(2018):56-63. |
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