THEMIS satellite observations of hot flow anomalies at Earth's bow shock
作者: C. ChuH. ZhangD. SibeckA. OttoQ. ZongN. OmidiJ. P. McFaddenD. FruehauffV. Angelopoulos
作者单位: 1eophysical Institute, University of Alaska Fairbanks, 903 Koyukuk Dr, Fairbanks, AK 99775, USA
2Geophysical Institute, University of Alaska Fairbanks, 903 Koyukuk Dr, Fairbanks, AK 99775, USA
3NASA Goddard Spaceflight Center, Greenbelt, Maryland, USA
4Institute of Space Physics and Applied Technology, Peking University, Beijing, China
5Solana Scientifica, San Diego, California, USA
6Space Sciences Laboratory, Un
刊名: Annales Geophysicae, 2017, Vol.35 , pp.443-451
来源数据库: Directory of Open Access Journals
DOI: 10.5194/angeo-35-443-2017
原始语种摘要: Hot flow anomalies (HFAs) at Earth's bow shock were identified in Time History of Events and Macroscale Interactions During Substorms (THEMIS) satellite data from 2007 to 2009. The events were classified as young or mature and also as regular or spontaneous hot flow anomalies (SHFAs). The dataset has 17 young SHFAs, 49 mature SHFAs, 15 young HFAs, and 55 mature HFAs. They span a wide range of magnetic local times (MLTs) from approximately 7 to 16.5 MLT. The largest ratio of solar wind to HFA core density occurred near dusk and at larger distances from the bow shock. In this study, HFAs and SHFAs were observed up to 6.3 R E and 6.1 R E (Earth radii), respectively, upstream from the model bow shock. HFA–SHFA occurrence decreases with distance upstream from the bow...
全文获取路径: DOAJ  (合作)
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影响因子:1.518 (2012)

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关键词翻译
关键词翻译
  • shock 冲击冲突
  • mature 成孰的
  • increased 增加
  • upstream 向上游
  • Earth 地球
  • observed 观察到的
  • solar 太阳
  • density 密度
  • highest 最高的
  • times