Self-Consistent Evolution of the Photoelectron-Driven Polar Wind from Ionospheric to Magnetospheric Altitudes Including the Effects of Wave-Particle Interactions

光电子驱动的极地风从电离层到磁层高度的自洽演化，包括波粒相互作用的影响

• 批准号: 0235222
• 负责人: Sunny Tam
• 金额: --
• 依托单位: Massachusetts Institute of Technology
• 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: 2003-01-01 至 2005-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0235222&HistoricalAwards=false
• 关键词: Self; Consistent; Evolution; Photoelectron; Driven

One of the major mechanisms for coupling the ionosphere and the magnetosphere is through ion outflows. On the dayside, the primary driver of the polar wind is photoelectrons. This project will investigate the evolution of the polar wind, using a hybrid simulation code that can take into account the collisional effects of the photoelectrons and wave-particle interactions. The self-consistent effects on the polar wind due to particle precipitation from the magnetosphere will also be included. The results from the theoretical and modeling work will be compared with data from the Akebono and POLAR satellites. The results will advance our understanding of ionosphere-magnetosphere coupling, which has an important role in the dynamics of the magnetosphere and space weather.

电离层和磁层耦合的主要机制之一是通过离子流出。在白天，极地风的主要驱动力是光电子。这个项目将使用一种混合模拟代码来研究极地风的演化，该代码可以考虑光电子和波-粒子相互作用的碰撞效应。磁层粒子降水对极地风的自洽效应也将包括在内。理论和模型工作的结果将与Akebono和极地卫星的数据进行比较。这一结果将促进我们对电离层-磁层耦合的理解，电离层-磁层耦合在磁层动力学和空间天气中具有重要作用。