1. 登录 | 注册 | 用户中心 | 关于平台 | 中国科学院
当前位置:成果展示 > 成果详情

Field-Aligned Currents at the PSBL on 17 August 2001 Storm: Relationships with solar Wind Conditions

  • [设施]:子午工程
  • [期刊/会议名称]:空间物理
  • [摘要]:Using magnetic field and plasma data acquired with Cluster spacecrafts, we investigate the relationship between the field-aligned currents (FACs) at the plasma sheet boundary layer (PSBL) and solar wind dynamic pressure, as well as the interplanetary magnetic field (IMF) B(y) on 17 August 2001 storm. Our studies reveal that FAC density at the PSBL in the magnetotail in the storm time is controlled mainly by the solar wind dynamic pressure rather than IMF B(y) The FACs at the PSBL are associated with the low-altitude region-1 current and have the same polarity as region-1 current in the dawn sector. In the polar region, the footprints of the FACs at the PSBL expand equatorward. The data analysis also shows that a very strong FAC with a density over 40 nA.m(-2) appeared in this storm time when a substorm just occurred.
  • [发表日期]:2011
  • [第一作者]:程征伟
  • [第一作者单位]:中国科学院国家空间科学中心
  • [通讯作者]:
  • [通讯作者单位]:
  • [论文类型]:期刊
  • [期刊分类]:PHYSICS, MULTIDISCIPLINARY(SCI3区)
  • [学科分类]:
  • [影响因子]:0.947
  • [关键词]:
  • [卷号]:9
  • [期号]:28
  • [起止页码]:
  • [简介]: