Observational Signatures of Plasma Transport Across the Low‐Latitude Boundary Layer
Observational Signatures of Plasma Transport Across the Low‐Latitude Boundary Layer
复制标题
低纬边界层等离子体输运的观测特征
DOI：
10.1029/133gm26
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
M. Fujimoto
中科院分区：
文献类型：
--
作者：
M. Nishino;T. Terasawa;M. Fujimoto
人们已经认识到，在向北行星际磁场的延长期间，尾部等离子体片变得寒冷和密集，显示出与太阳风等离子体的正密度相关。最近人们还认识到，在向北的行星际磁场期间，沿沿着Z（北-南）方向积分的等离子体密度也很高，这表明在向南的行星际磁场期间，等离子体供应速率相当高，约为1026质子/秒，相当于增强供应速率的10%。虽然后一种速率被认为是由有效的昼侧磁层顶重联引起的，但尚不清楚在向北的行星际磁场期间等离子体传输是如何发生的。由于高度演变的LLBL也观察到在这样的时期，我们预计等离子体传输到等离子体片和LLBL的演变之间的一些因果关系。我们回顾了关键的意见，并讨论了可能的物理机制的等离子体传输。
It has been recognized that during extended periods of the northward interplanetary magnetic field the tail plasma sheet becomes cold and dense, showing a positive density correlation with the solar wind plasma. Recently it has been also recognized that the plasma density integrated along the Z (north-south) direction across the plasma sheet becomes also high during the northward IMF periods, which suggests a fairly high plasma supply rate of ∼ 10 26 protons/sec amounting nearly 10% of the enhanced supply rate during the southward interplanetary magnetic field periods. While the latter rate is considered to be caused by the efficient dayside magnetopause reconnection, it is not yet known how the plasma transport occurs during the northward interplanetary magnetic field periods. Since the highly evolved LLBL is also observed during such periods, we expect some causal relation between the plasma transport to the plasma sheet and the evolution of the LLBL. We review the key observations and discuss possible physical mechanisms of the plasma transportation.
向北的行星际磁场间隔期间尾部等离子体含量的增加：案例研究
DOI：
--
发表时间：
2002
期刊：
J.Geophys.Res. 107
影响因子：
--
作者：
M.Nishino;T.Terasawa;M.Hoshino
通讯作者：
M.Hoshino