GEM: Plasma Sheet Preconditioning Affecting the Dynamics of the Inner Magnetosphere

该项目的目的是了解磁尾在向北行星际磁场（IMF）或高太阳风速度期间的预调节如何影响内磁层。在向北的国际货币基金组织期间，形成了一个冷的致密等离子体层，当国际货币基金组织随后转向向南流入内部磁层。它在同步轨道上表现为超致密等离子体，然后加速并形成环电流。虽然人们普遍认为这一过程发生了，但控制它的参数、能量如何发生和影响还没有得到很好的理解。本研究将使用OpenGGCM全球MHD模拟，并结合两种环流模型（Rice Convection Model （RCM）和综合环流模型（CRCM））。模型结果将被分析以理解过程。这个项目将资助一名研究生。

The goal of this project is to understand how preconditioning of the magnetotail during periods of northward interplanetary magnetic field (IMF) or high solar wind velocity affects the inner magnetosphere. During northward IMF a cold dense plasma sheet forms which when the IMF subsequently turns southward flows into the inner magnetosphere. It appears as super-dense plasma at synchronous orbit and then becomes accelerated and contributes to the ring current. While it is generally accepted that this process occurs the parameters that control it, how the energization takes place and the effects are not well understood. This study will use the OpenGGCM global MHD simulation coupled with two ring current models (the Rice Convection Model (RCM) and the Comprehensive Ring Current Model (CRCM)). Model results will be analyzed to understand the process. This project will support a graduate student.