U.S.-France Cooperative Research: Charged Particle Dynamics between the Adiabatic and Current Sheet Limits

这项为期两年的奖励将支持美国-法国大气和空间物理合作研究。伊利诺斯州州立大学的马丁和法国地球和行星环境研究中心的多米尼克·德尔考特。 该项目探讨了北极光（极光亚暴）对太阳风变化的物理反应。 地球背后的磁尾区域是极光亚暴被触发和激发的地方。 研究人员提出了三个计算/理论项目，解决：（1）亚暴的基本非线性动力学;（2）模型在近地磁尾的应用;（3）模型对电离层起源离子进入磁尾的影响。 这些研究有助于了解空间风暴，空间风暴会造成商业航天器的异常和故障、配电和通信中断。 美国的研究人员为这项合作带来了基本非线性动力学和磁尾动力学建模的背景。 法国调查员在电离层和近地粒子动力学方面的专门知识对此起到了补充作用。 该项目将进一步了解空间风暴，并扩大预测空间天气的工作。

This two-year award will support U.S.-France cooperative research in atmospheric and space physics between Richard F. Martin of Illinois State University and Dominique Delcourt of the French Center for the Study of Earth and Planetary Environments. The project addresses the physics of the aurora borealis (aurora substorms) in response to solar wind variations. The magnetotail region behind the earth is where aurora substorms are triggered and energized. The investigators propose three computational/theoretical projects that address: (1) basic nonlinear dynamics of substorms; (2) applications of the model to the near-Earth magnetotail; and (3) consequences of the model on ions of ionosphere origin entering the magnetotail. These studies are relevant to understanding of space storms, which cause commercial spacecraft anomalies and failures, interruptions of power distribution and of communications. The U.S. investigator brings to this collaboration background in basic nonlinear dynamics and magnetotail dynamical modeling. This is complemented by the French investigator's expertise in ionospheric and near-Earth particle dynamics. The project will further understanding of space storms and extend the work on predicting space weather.