Evolution of Small Scale Density Perturbations of Plasma and Charged Aerosol Particles in Polar Mesospheric Summer Echoes (PMSE) Layers

作     者：胡祖权 陈银华 郑聚高 刘昊 郁明阳 吴剑 

作者机构：Key Laboratory of Basic Plasma PhysicsChinese Academy of Sciencesand Department of Modern PhysicsUniversity of Science and Technology of China Institute for Fusion Theory and SimulationDepartment of PhysicsZhejiang University Institute für Theoretische PhysikRuhr-Universitt Bochum National Key Laboratory of Electromagnetic EnvironmentChina Research Institute of Radiowave Propagation 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2011年第13卷第5期

页      面：550-556页

核心收录：

学科分类：07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 070204[理学-等离子体物理] 0702[理学-物理学] 

基　　金：supported by National Natural Science Foundation of China (Nos. 40831062, 10775134) partially supported by CAS Knowledge Innovation Program (No. kjcx2-yw-n28) National Basic Research Program of China (Nos. 2008CB717800, 2009GB105001) 

主　　题：plasma small scale structure charged aerosol particle evolution 

摘      要：Time evolution of ionospheric D-region plasmas including the perturbations of electrons and charged aerosol particles is investigated under the conditions of polar mesosphere summer echoes （PMSE）. It is shown that the time scale of decay of the electron density is in the order of an hour under typical PMSE conditions, in the majority of cases, the electron density is anticorrelated to the ion density, except that the radius of aerosol particles is greater than 50 nm. Also, the evolutions under varied parameters, such as the amplitude and width of perturbation, the aerosol particle radius, and the altitude of the PMSE occurrence are investigated. The obtained results are useful for interpreting the experimental observations.