CAREER: Transport of Ions and Electrons in Solar Energetic Particle Events -- Towards an Integrated Space Weather Model

该奖项由2009年美国复苏和再投资法案(公共法律111-5)资助。在这个项目中，首席研究员(PI)将对太阳高能粒子(SEP)事件中的电子和离子传输进行系统研究，并为空间物理学家创建一个培训计划。PI将开发一种改进的蒙特卡罗方法，通过跟踪单粒子轨迹来跟踪高能粒子的传播；研究太阳风磁流体动力学(MHD)湍流的径向相关性如何影响高能粒子传输；探索超越静态准线性理论的太阳风MHD湍流的各种动力学近似；以及研究太阳风中的通量管对高能粒子传输的影响。这个项目将包括设计和开发一门新的空间物理课程，由国际空间研究所教授，改进阿拉巴马大学亨茨维尔分校物理系的空间物理课程。国际空间研究所的科学调查将产生一个有据可查的模型，将为社区提供一个现实的数值工具，用于研究SEP事件中的粒子传输。由于SEP事件是一种严重的空间天气灾害，该模型将对业务空间天气预报有用。研究日光层中SEP的传输及其与行星际等离子体的相互作用将直接有助于加深对宇宙中高能粒子传输的了解。该项目的教育和培训部分将直接支持两名研究生和几名本科生。除了UAH的课程编制外，国际和平研究所还将组织一年两次的关于空间气象研究最新进展的讲习班，以补充一年一度的太阳、日光层和星际环境会议。PI将为全国各地申请参加他的研讨会的有兴趣的研究生提供资金支持。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).In this project, the Principal Investigator (PI) will perform a systematic study of electron and ion transport in solar energetic particle (SEP) events and create a training program for space physicists. The PI will develop an enhanced Monte Carlo approach to follow the propagation of energetic particles by tracing single particle trajectories; examine how the radial dependence of solar wind magnetohydrodynamics (MHD) turbulence can affect energetic particle transport; explore various dynamic approximations of solar wind MHD turbulence beyond static quasi-linear theory; and investigate the effects of flux tubes in the solar wind on the transport of energetic particles. This project will include the design and development of a new space physics course to be taught by the PI, improving the space physics curriculum in the Physics Department at the University of Alabama at Huntsville (UAH).The PI's science investigation will lead to a well documented model which will provide a realistic numerical tool to the community for studying particle transport in SEP events. This model will be useful for operational space weather forecasting, since SEP events are a serious space weather hazard. Studying the transport of SEPs and their interaction with interplanetary plasma in the heliosphere will directly contribute to increased understanding of energetic particle transport in the cosmos. The project's education and training component will directly support two graduate students and several undergraduate students. In addition to curriculum development at UAH, the PI will organize a biannual workshop on recent progress in space weather studies to complement the annual SHINE (Solar, Heliospheric, and INterplanetary Environment) meeting. The PI will provide financial support to interested graduate students throughout the country who apply to attend his workshop.