Theory and Data Analysis of Magnetic Pulsations in the Magnetosphere

这笔赠款是为了对磁层中的磁脉动进行理论和观测研究。超低频(ULC)磁流体的线性本征模分析。波将在真实的偶极场几何图形中执行。我们将特别关注这些MHD波的非线性饱和机制(S)以及这些波如何影响粒子扩散。这项研究的一个重要部分是利用观测到的环电流离子分布(来自AM、P、T、E、C、C、E卫星)作为低线性分析的输入，以便能够确定ULF波的激发机制(S)。这些信息加上对超低频波的非线性饱和机制的了解，可能会为环流等离子体的全球动力学提供重要的洞察。

This grant is for a theoretical and observational study of magnetic pulsation in the magnetosphere. A linear eigenmode analysis of ultra-low frequency (ULC) MHD. Waves will be performed in a realistic dipole field geometry. Special attention will be given to the nonlinear saturation mechanism (s) of these MHD waves and how such waves effect particle diffusion. An important part of this study involves using observed ring current ion distributions (from the A M P T E C C E Satellite) as input for the lower linear analysis to be able to determine the excitation mechanism (s) of ULF waves. This information along with a knowledge of the nonlinear saturation mechanism of ULF waves may provide important insight into the global dynamics of ring current plasmas.***//