GEM: A New Geospace General Circulation Phase I Model (GGCM) of Magnetospheric Ion Sources

该项目将对太阳风离子进入磁层进行系统的研究。粒子将跟随太阳风，穿过磁层顶，然后进入磁层的各个区域。它将确定除了磁重联之外，是否存在允许大量离子进入磁层的机制，并将解决电离层对离子种群的贡献问题。该项目将利用先前MHD磁层模型的结果来确定磁层的状态，然后将利用测试粒子追踪技术来跟踪太阳风中的离子进入磁层

This project will perform a systematic investigation of the entry of solar wind ions into the magnetosphere. Particles will be followed from the solar wind, through the magnetopause, and then into the various regions of the magnetosphere. It will determine whether there are mechanisms other than magnetic reconnection that allow a significant number of ions access to the magnetosphere and will also address the question of what contribution the ionosphere makes to the ion population. The project will utilize the results from prior MHD modeling of the magnetosphere to define the state of the magnetosphere and then will utilize a test-particle tracing technique to follow ions from the solar wind into the magnetosphere