GEM Postdoc: Magnetosphere-Ionosphere Coupling Aspects of Traveling Convection Vortices

该项目将研究产生行进对流涡(TCV)的中尺度磁层-电离层耦合过程。TCVs最初被认为是磁层顶磁通转移事件的电离层特征，但现在这一点基本上被忽视了。该项目将搜索TCV事件，在这些事件中，可结合地面电离层观测使用共轭卫星数据。将使用几颗卫星的数据，包括FAST、DMSP、Oersted和Champs卫星。来自GEOTAIL卫星的数据也将用于统计信息。将进行磁流体力学(MHD)建模，以确定在观测到TCV时M-I系统的动态状态。

This project will examine the meso-scale magnetosphere-ionosphere coupling processes which create traveling convection vortices (TCVs). TCVs were originally thought to be the ionospheric signature of flux transfer events at the magnetopause, but this has now been largely discounted. The project will search for TCV events where conjugate satellite data can be used in conjunction with the ground-based ionospheric observations. Data from several satellites will be used including the FAST, DMSP, Oersted and CHAMPS satellites. Data from the GEOTAIL satellite will also be for statistical information. Magnetohydrodynamic (MHD) modeling will be done to determine the dynamical state of the M-I system when TCVs are observed.