Dynamics of the inner electron radiation belt:A review  

作　　者：YuXuan Li Chao Yue Ying Liu Qiu-Gang Zong Hong Zou YuGuang Ye 

机构地区：[1]Institute of Space Physics and Applied Technology,Peking University,Beijing 100871,China

出　　处：《Earth and Planetary Physics》2023年第1期109-118,共10页地球与行星物理（英文版）

基　　金：supported by NSFC research grant 41974191;China National Space Administration project D020303;the National Key R&D Program of China 2020YFE0202100。

摘　　要：The Van Allen radiation belts are an extraordinary science discovery in the Earth magnetosphere and consist of two electron belts.The inner Van Allen belt contains electrons of 10s to 100s keV;the outer belt consists mainly of 0.1-10 MeV electrons.Their dynamics have been analyzed for decades.The newly-launched Van Allen Probes provide unprecedented opportunities to investigate the inner belt more thoroughly.Data from this advanced mission have allowed scientists to demonstrate that the inner belt was formed not only through inward transport of outer belt electrons but Cosmic Ray Albedo Neutron Decay(CRAND)has also played an important role.In addition,the inner belt electrons show energy-dependent variations and present“zebra stripe”structures in the energy spectrum.At the same time,scientists have further confirmed that the electrons in the inner radiation belt get lost through coulomb collision and wave-particle interaction.Despite these advances,important questions remain unanswered and require further investigation.The launch of Macao Science Satellite-1 mission,with its low inclination angle and low altitude orbit,will provide advanced radiation belt data for better understanding of the structure and dynamics of the inner electron radiation belt.

关 键 词：Macao Scientific Satellite-1 mission zebra stripes inward transport CRAND coulomb collision wave-particle interaction 

分 类 号：P31[天文地球—固体地球物理学]