Space Weather: Modeling Ring Current and Radiation Belt Dynamics in Relation to Interplanetary Parameters

空间天气：模拟与行星际参数相关的环流和辐射带动力学

• 批准号: 0309585
• 负责人: Vania Jordanova
• 金额: --
• 依托单位: University of New Hampshire
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-07-15 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0309585&HistoricalAwards=false
• 关键词: Space; Weather; Modeling; Ring; Current

A global numerical model of the Earth's ring current will be enhanced with a number of improvements. A more realistic magnetic field model will be incorporated by using the magnetic field configuration models developed by Tsyganenko. The electric field model developed by Weimer will allow a more realistic electric field model that depends on solar wind conditions will be added. In addition, the kinetic model of Jordanova et al. will be extended to include electrons and relativistic energies. Radial diffusion of particles will be included in the model as well. Ring current and radiation belt dynamics will be simulated during representative magnetic storms. These results will be used to reveal systematic behavior that will foster the development of a predictive model. The spatial regions of intense ion and electron precipitation will be obtained and the rates of particle loss due to resonant interaction with plasma waves will be assessed. Comparisons with available satellite data will be made to test the model results. The project will contribute to the goals of the National Space Weather Program and also has relevance to the NASA Living with a Star program. The project will also provide support for a graduate student.

地球环电流的全球数值模型将通过若干改进得到加强。一个更现实的磁场模型将被纳入使用Tsyganenko开发的磁场配置模型。由Weimer开发的电场模型将允许添加取决于太阳风条件的更现实的电场模型。 此外，Jordanova等人的动力学模型将被扩展到包括电子和相对论能量。颗粒的径向扩散也将包括在模型中。将在有代表性的磁暴期间模拟环电流和辐射带动态。这些结果将用于揭示系统行为，这将促进预测模型的发展。 将获得强烈离子和电子沉淀的空间区域，并评估由于与等离子体波共振相互作用而导致的粒子损失率。将与现有的卫星数据进行比较，以检验模型结果。该项目将有助于实现国家空间气象计划的目标，也与美国宇航局的“与星星共存”计划有关。该项目还将为一名研究生提供支持。