Collaborative Research: GEM: Global Simulations of Non-Ideal Transport in the Magnetotail

等离子体从尾部重新连接的位置被输送到内部磁层，在那里它形成环电流。研究这种输运最常用的模式是全球磁流体动力学（MHD）模式。由于MHD模型不能很好地描述内磁层的物理特性，因此这些模型经常与内磁层等离子体输运模型相结合。这是一个项目，以提高MHD模型的物理在尾巴，他们最好的工作。这项工作将增加抗磁（压力驱动）漂移，惯性漂移，压力张量上的有限拉莫尔半径效应，以及这些漂移的能量依赖性。改进后的模型将用于研究磁层对流、快速突发体流和双极化锋、开尔文-亥姆霍兹不稳定性和薄电流片的结构。改进后的模拟代码与内磁层模型相结合，将有助于研究磁暴期间的输运。因此，对空间气象研究具有重要价值。由于太空天气代表了一系列的危险，这项工作可能具有重大的社会价值。

Plasma from the tail reconnection site is transported into the inner magnetosphere where it forms the ring current. The most common type of model for studying this transport is a global magnetohydrodynamic (MHD) model. These are frequently coupled with models of the plasma transport in the inner magnetosphere since MHD models do not describe the physics well in the inner magnetosphere. This is a project to enhance the physics of the MHD models in the tail where they work best. This effort will add diamagnetic (pressure driven) drifts, inertial drifts, finite Larmor radius effects on the pressure tensor, and the energy dependence of these drifts. The improved model will be used to study magnetospheric convection, fast bursty bulk flows and dipolarization fronts, the Kelvin-Helmholtz instability and the structure of thin current sheets.The improved simulation code when coupled with an inner magnetosphere model will be useful in studying transport during magnetic storms. Therefore it will valuable for space weather studies. Since space weather represents a series hazard this work may be of significant societal value.