An interpretation of spacecraft and ground based observations of multiple omega band events
作者: J.M. WeygandM.G. KivelsonH.U. FreyJ.V. RodriguezV. AngelopoulosR. RedmonJ. Barker-ReamA. GrocottO. Amm
作者单位: 1Institute of Geophysics and Planetary Physics, University of California Los Angeles, Los Angeles, CA, USA
2Department of Earth, Planetary, and Space Sciences, University of California Los Angeles, Los Angeles, CA, USA
3Space Sciences Laboratory, University of California, Berkeley, CA, USA
4Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, 216 UCB, Boulder, CO 80309, USA
5National Oceanic and Atmospheric Administration/National Geophysical Data Center, 325 Broadway E/GC2 Boulder, CO 80305, USA
6Department of Physics and Astronomy, University of Leicester, UK
7Finnish Meteorological Institute, Finland
刊名: Journal of Atmospheric and Solar-Terrestrial Physics, 2015, Vol.133 , pp.185-204
来源数据库: Elsevier Journal
DOI: 10.1016/j.jastp.2015.08.014
关键词: Omega bandsMagnetosphere–ionosphere couplingSubstormsHigh speed plasma sheet flows
原始语种摘要: Abstract(#br)The source of the auroral phenomenon known as omega bands is not yet known. We examine in detail five different intervals when omega bands were observed on March 9th, 2008 between 0400UT and 1100UT over central Canada using both ground and space-based instrumentation. The THEMIS all sky imagers show the development of some of the omega bands from north–south streamers. Spherical elementary currents derived from ground magnetometer data indicate that the omega bands lie near the interface between the region 1 and region 2 currents in the post-midnight sector. THEMIS spacecraft data from the pre-midnight sector display multiple high speed flows and dipolarization features associated with high levels of geomagnetic activity, whereas four...
全文获取路径: Elsevier  (合作)

  • omega 奥米加
  • spacecraft 太空飞行器
  • interpretation 判读
  • magnetotail 磁层尾
  • region 地域
  • detail 详情
  • bands 同心带
  • available 可供应的
  • geosynchronous 与地球同步的
  • observed 观察到的