Studies in Magnetospheric Dynamics

近年来，太阳风进入磁层的能量和动量耦合、等离子体在磁层边界内的输送和加热、磁层顶和电离层运动耦合等动力学过程受到越来越多的关注。这笔拨款用于研究各种过程，这些过程对太阳风等离子体通过磁层和磁层腔进入电离层的耦合很重要。由于研究的性质，这笔拨款将成为GEM（地球空间环境建模）计划的一部分。该项目将侧重于：1)太阳风中的压力脉冲如何影响磁层和电离层；2)磁层顶的突发重联产生的通量转移事件（FTE）扰动的结构和电离层特征；3)超低频波的电离层边界条件。＊＊＊

Dynamical processes for coupling energy and momentum of the solar wind into the magnetosphere, for transporting and heating the plasma within its boundaries, and for coupling the motions of magnetopause and ionosphere have received increasing attention in recent years. This grant is for studies to examine a variety of processes that are important for the coupling of solar wind plasma through the magnetosphere and the magnetospheric cavity and into the ionosphere. Because of the nature of the studies, this grant will be part of the GEM (Geospace Environment Modelling) program. The project will focus on: 1) How pressure pulses in the solar wind affects the magnetosphere and ionosphere, 2) The structure and the ionospheric signatures of disturbances called Flux Transfer Events (FTE's) that are produced by bursty reconnection on the magnetopause, and 3) ionospheric boundaries conditions for ultralow frequency waves. ***