A New Approach to Plasmasphere Refilling: Anomalous Plasma Effects

等离子体球再填充的新方法：异常等离子体效应

• 批准号: 8911799
• 负责人: Nagendra Singh
• 金额: $ 8.11万
• 依托单位: University of Alabama in Huntsville
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-07-01 至 1991-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8911799&HistoricalAwards=false
• 关键词: New; Approach; Plasmasphere; Refilling; Anomalous

This project is for the study of microscopic and macroscopic plasma processes in the refilling of the flux tubes in the plasmasphere. The hydrodynamic theory cannot explain many observed features such as the pancake type pitch angle distributions. A new theoretical approach is proposed to include wave-particle interactions. Analytical and model generated results will be used in conjunction with measured particle distributions. The interaction of ions with the electromagnetic fluctuations will be studied to estimate the average rates of change in ion energy and pitch angle distributions. The results are important in understanding ionosphere-plasmasphere coupling. The observations of polar wind ion streams will be used from the DE satellite with the theoretical results.

本项目主要研究等离子体层磁通管填充过程中的微观和宏观等离子体过程。水动力理论不能解释许多观测到的特征，如煎饼型俯仰角分布。提出了一种新的包括波粒相互作用的理论方法。分析和模型生成的结果将与测量的颗粒分布一起使用。将研究离子与电磁波动的相互作用，以估计离子能量和俯仰角分布的平均变化率。这些结果对理解电离层-等离子体层耦合具有重要意义。将利用DE卫星对极地风离子流的观测结果与理论结果相结合。