Collaborative Research: Quantifying the Effects of Nonlinear Wave-particle Interaction in the Inner Magnetosphere

GSTDTAP

项目编号	1914594
	Collaborative Research: Quantifying the Effects of Nonlinear Wave-particle Interaction in the Inner Magnetosphere
	Anton Artemev (Principal Investigator)
主持机构	University of California-Los Angeles
项目开始年	2019
	2019-06-01
项目结束日期	2022-05-31
资助机构	US-NSF
项目类别	Standard Grant
项目经费	247333(USD)
国家	美国
语种	英语
英文摘要	Whistler waves are radio waves produced at very low frequencies by lightning. They are believed to have an important role in the dynamics of the radiation belts and broader magnetosphere. This work will involve theoretical and observational studies of these waves and their interactions with relativistic particles in the magnetosphere. The results have direct applications in space weather models, which are a priority set out in the National Space Weather Action Plan. Additionally, two graduate students will be supported and collaborations will be strengthened between plasma physicists and space physicists at multiple institutions. To quantify nonlinear wave-particle resonant interactions, three questions will be addressed (i.e., objectives) in this project: (1) how often sufficiently intense whistler waves are detected in the inner magnetosphere, which will provide the occurrence rate of nonlinear wave-particle interactions; (2) how to describe the impact of intense whistler waves on electron flux evolution, which will provide a theoretical tool to evaluate electron distributions in the geospacer system with nonlinear wave-particle interactions; and (3) what is the effect of nonlinear wave-particle interactions on wave generation and damping, which will provide a validated model of the nonlinear wave growth/damping rate in the inner magnetosphere. Each of the three objectives combines observational (from THEMIS and Van Allen Probes) and theoretical investigations. This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
文献类型	项目
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/213677
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	Anton Artemev .Collaborative Research: Quantifying the Effects of Nonlinear Wave-particle Interaction in the Inner Magnetosphere.2019.