globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL060301
论文题名:
Day-night coupling by a localized flow channel visualized by polar cap patch propagation
作者: Nishimura Y.; Lyons L.R.; Zou Y.; Oksavik K.; Moen J.I.; Clausen L.B.; Donovan E.F.; Angelopoulos V.; Shiokawa K.; Ruohoniemi J.M.; Nishitani N.; McWilliams K.A.; Lester M.
刊名: Geophysical Research Letters
ISSN: 0094-10559
EISSN: 1944-10290
出版年: 2014
卷: 41, 期:11
起始页码: 3701
结束页码: 3709
语种: 英语
英文关键词: day-night coupling ; flow channel ; polar cap patch ; poleward moving auroral form ; reconnection
Scopus关键词: Plasma density ; Plasma sheaths ; Radar astronomy ; Coordinated observations ; Defense Meteorological Satellite Programs ; Flow channels ; Low latitude boundary layer ; Open-closed boundaries ; Polar cap patches ; reconnection ; Super dual auroral radar network ; Channel flow ; airglow ; aurora ; plasma ; radar imagery ; satellite imagery
英文摘要: We present unique coordinated observations of the dayside auroral oval, polar cap, and nightside auroral oval by three all-sky imagers, two Super Dual Auroral Radar Network (SuperDARN) radars, and Defense Meteorological Satellite Program (DMSP)-17. This data set revealed that a dayside poleward moving auroral form (PMAF) evolved into a polar cap airglow patch that propagated across the polar cap and then nightside poleward boundary intensifications (PBIs). SuperDARN observations detected fast antisunward flows associated with the PMAF, and the DMSP satellite, whose conjunction occurred within a few minutes after the PMAF initiation, measured enhanced low-latitude boundary layer precipitation and enhanced plasma density with a strong antisunward flow burst. The polar cap patch was spatially and temporally coincident with a localized antisunward flow channel. The propagation across the polar cap and the subsequent PBIs suggests that the flow channel originated from dayside reconnection and then reached the nightside open-closed boundary, triggering localized nightside reconnection and flow bursts within the plasma sheet. © 2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84901727126&doi=10.1002%2f2014GL060301&partnerID=40&md5=56c00f0a2d0280ac49dcbe3e5916b170
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7823
Appears in Collections:气候减缓与适应

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作者单位: Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, United States

Recommended Citation:
Nishimura Y.,Lyons L.R.,Zou Y.,et al. Day-night coupling by a localized flow channel visualized by polar cap patch propagation[J]. Geophysical Research Letters,2014-01-01,41(11).
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