Space Weather: Radiation Belt Formation During Geomagnetic Storms

太空天气：地磁风暴期间辐射带的形成

• 批准号: 9819927
• 负责人: Charles Goodrich
• 金额: $ 24万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-06-15 至 2002-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9819927&HistoricalAwards=false
• 关键词: Space; Weather; Radiation; Belt; Formation

This project will use Magnetohydrodynamic (MHD) simulations in conjunction with test particle tracing to examine the formation of the outer radiation belt. The outer radiation belt is known to be formed during geomagnetic storms, but the detailed mechanisms by which electrons are energized to form the belt are very poorly understood. MHD simulations will be used to determine the basic structure and time development of the magnetospheric electric and magnetic fields and at each time step, test particles will be followed to determine where and how they are energized.

该项目将使用磁流体动力学（MHD）模拟与测试粒子追踪相结合来检查外辐射带的形成。众所周知，外层辐射带是在地磁风暴期间形成的，但人们对电子被激发形成辐射带的详细机制知之甚少。MHD模拟将用于确定磁层电场和磁场的基本结构和时间发展，并且在每个时间步骤中，将跟踪测试粒子以确定它们在何处以及如何通电。