GEM: Radiation Belt Dynamics for Geospace Environment Modeling

该项目将使用理论和计算方法来研究磁暴期间地球辐射带中可能产生高能电子的一些过程。特别是，它将研究波-粒子相互作用的重要性，这种相互作用可能为传输高能电子提供能量。此外，一类被称为Shebansky轨道的粒子轨道允许粒子违反第二绝热不变量守恒定律。这个项目将评估这些轨道在产生相对论电子方面的重要性。这项研究的最终目标将是产生一种新的辐射带传输代码，该代码可用于地球空间大气环流模式(GGCM)。GGCM的创建是地球空间环境建模(GEM)计划的一个主要目标。

This project will use a theoretical and computational approach to examine some of the processes which may produce high energy electrons that are found in the Earth's radiation belts during magnetic storms. In particular, it will examine the importance of wave-particle interactions which may energize the transport energetic electrons. In addition, class of particle orbits known as Shebansky orbits allow particles to violate conservation of the second adiabatic invariant. This project will evaluate the importance of these orbits in generating relativistic electrons. The ultimate goal of the study will be to produce a new radiation belt transport code which could be used in a Geospace General Circulation Model (GGCM). The creation of the GGCM is a major goal of the Geospace Environment Modeling (GEM) program.