Plasma Analysis for the Earth's Bow Shock and Magnetosheath

地球弓激波和磁鞘的等离子体分析

• 批准号: 9706874
• 负责人: Crockett Grabbe
• 金额: $ 12万
• 依托单位: University of Iowa
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-12-15 至 2002-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9706874&HistoricalAwards=false
• 关键词: Plasma; Analysis; Earth; Bow; Shock

This project would seek improved estimates of the solar wind polytropic index at the bow shock to be obtained by analyzing shock crossing data with improved MHD-based models for the bow shock. The project will additionally seek analytic solutions for the magnetosheath thickness and related parameters and determine their dependence on solar wind and magnetopause parameters. The results of these investigations will be compared with MHD simulations with the goal to improve the understanding of the large scale physics of the magnetosheath and the size and shape of the bow shock.

该项目将设法改进对弓形激波处太阳风多变指数的估计，方法是用改进的弓形激波磁流体模型分析激波交叉数据。 该项目还将寻求磁鞘厚度和相关参数的解析解，并确定它们对太阳风和磁层顶参数的依赖性。 这些调查的结果将与MHD模拟进行比较，目的是提高对磁鞘大尺度物理和弓形激波的大小和形状的理解。