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This thesis focuses on ULF (Ultra-low-frequency) waves' interaction with plasmasphere particles and ring current ions in the inner magnetosphere. It first reports and reveals mutual effect between ULF waves and plasmasphere using Van Allen Probes data. The differences and similarities of different ring current ions interacting with ULF waves are extensively explored using Cluster data, which provides a potential explanation for O+-dominated ring current during the magnetic storms. Furthermore, this thesis finds a method to study the phase relationship between ULF waves and drift-bounce resonant particles, and proposes that the phase relationship can be used to diagnose the parallel structure of standing wave electric field and energy transfer directions between waves and particles. The findings in this thesis can significantly promote our understanding of ULF waves' role in the dynamics of inner magnetosphere.
|Publication date:||24th August 2019|
|Publisher:||Springer Verlag, Singapore|
|Categories:||Astronautics, Plasma physics, Solar system: the Sun & planets, Astrophysics,|
Dr. Jie Ren obtained his PhD in Geophysics from Peking University in 2018. His research interests lie in space physics, magnetosphere physics and space plasma physics. He has published several high quality articles in journals such as Journal of Geophysical Research: Space Physics. He was awarded with Award for Excellent Scientific Research, Exceptional Award for Academic Innovation, Excellent Student Award, and Excellent Graduate Award by Peking University, China National Scholarship by the Ministry of Education, and the Excellent Graduate Award of Beijing by the government. After graduation, he got Peking University Boya Postdoctoral Fellowship and National Postdoctoral Fellowship for Innovative Talents.More About Jie Ren