Mapping travelling convection vortex events with respect to energetic particle boundaries
Mapping travelling convection vortex events with respect to energetic particle boundaries
复制标题
相对于高能粒子边界绘制行进对流涡旋事件
DOI：
10.1007/s00585-998-0891-2
复制
发表时间：
1998
影响因子：
1.9
通讯作者：
A. Yahnin
中科院分区：
文献类型：
--
作者：
Therese Moretto;A. Yahnin
格陵兰磁力计数据在1990和1991年期间发现了13次非常安静条件下的高纬度电离层行进对流涡旋事件。这些事件的涡旋中心的纬度与NOAA 10卫星的粒子测量所确定的高能电子捕获边界进行了比较。此外，在所有情况下，至少有一个关闭的DMSP立交桥可用。在这13种情况中，除了一种例外情况外，所有的TCV中心都位于能量大于>；100kev的电子群体的陷阱边界附近的陷阱高能电子区域内。相应地，从DMSP资料来看，它们位于靠近CPS/BPS降水边界的等离子体片型降水区域内。也就是说，TCV中心映射到磁层深处，而不是磁层顶。
Thirteen events of high-latitude ionospheric travelling convection vortices during very quiet conditions were identified in the Greenland magnetometer data during 1990 and 1991. The latitudes of the vortex centres for these events are compared to the energetic electron trapping boundaries as identified by the particle measurements of the NOAA 10 satellite. In addition, for all events at least one close DMSP overpass was available. All but one of the 13 cases agree to an exceptional degree that: the TCV centres are located within the region of trapped, high energy electrons close to the trapping boundary for the population of electrons with energy greater than > 100 keV. Correspondingly, from the DMSP data they are located within the region of plasmasheet-type precipitation close to the CPS/BPS precipitation boundary. That is, the TCV centres map to deep inside the magnetosphere and not to the magnetopause.