GEM: Modeling the Stormtime Injection of Ring Current Ions and Electrons

该项目将开发一种对地球环流的三维模拟。关于风暴时间环流，还有许多悬而未决的问题。感应电场在环电流中电子和离子的带电中起什么作用？感应电场在环电流的衰减中起什么作用？在环电流的形成中，太阳风和电离层离子的相对重要性是什么？感应电场在辐射带中相对论“杀手”电子的产生中起作用了吗？为了回答这些问题，将通过加入更真实的电场和磁场模型，使用更真实的源粒子分布，以及开发算法来进行相空间映射模拟，来改进之前在GEM授权下开发的环电流模型。这种改进的模拟将应用于特定的磁暴事件，在那里可以将结果与CRRES卫星的数据进行比较

This project will develop a 3-dimensional simulation of the Earth's ring current. There are many unanswered questions about the storm time ring current. What role does the induced electric field play in the energization of electrons and ions in the ring current? What role does the induced electric field play in the decay of the ring current? What is the relative importance of solar wind vs. ionospheric ions in the formation of the ring current? Do induced electric fields play a role in the production of relativistic "killer" electrons in the radiation belts? In order to answer these questions, the ring current model which was developed under a previous GEM grant will be improved by incorporating more realistic electric and magnetic field models, using more realistic source particle distributions, and developing algorithms to perform phase space mapping simulations. This improved simulation will then be applied to specific magnetic storm events where the results can be compared with data from the CRRES satellite