Transverse Acceleration of Ionospheric Ions in the Auroral Zone

该项目将对地球电离层和磁层中的微中尺度离子演化现象展开系统的理论研究。未来几年重要的空间等离子体研究问题将面向全球问题加以解决。现场观测正在成为范围内的多个航天器，理论模型正被迫面对非局部性和多尺度相互作用的问题。研究人员遇到了微观过程，如波粒相互作用和与大电场和磁场相关的宏观效应，其中不均匀和流动是重要的。这项研究的目的是了解微尺度和介观尺度上发生的带电粒子的能化、扩散和输运现象。具体地说，他将继续研究极光离子加速问题、逆流电子的产生、等离子体湍流的非局域产生、传播和饱和、中尺度共振波-粒子相互作用以及模式转换和模式-模式耦合过程。

This project will launch a systematic theoretical investigation of micro-mesoscale ion evolutionary phenomena in the Earth's ionosphere and magnetosphere. Important space plasma research problems in coming years will be addressed toward global issues. In-situ observations are becoming multi-spacecraft in scope, and theoretical models are being forced to confront issues of nonlocality and multiscale interactions. Investigators encounter microscopic processes, such as wave-particle interactions and macroscopic effects connected with large electric and magnetic fields, where inhomogeneities and flow are important. This research has been aimed at understanding charged particle energization, diffusion and transport phenomena occurring at both micro- and mesoscales. Specifically, the PI will continue his studies of the auroral ion acceleration problem, the production of counterstreaming electrons, the nonlocal generation, propagation and saturation of plasma turbulence, mesoscale resonant wave-particle interactions, and mode conversion and mode-mode coupling processes.