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Calculation of the extreme ultraviolet radiation of the earth's plasmasphere

Calculation of the extreme ultraviolet radiation of the earth's plasmasphere

作     者:FOK Mei-Ching 

作者机构:NASA Goddard Space Flight CenterGreenbeltMD 20771USA 

出 版 物:《Science China(Technological Sciences)》 (中国科学(技术科学英文版))

年 卷 期:2010年第53卷第1期

页      面:200-205页

核心收录:

学科分类:070802[理学-空间物理学] 07[理学] 0708[理学-地球物理学] 

基  金:supported by the National Natural Science Foundation of China (Grants No. 40774098,40774079 and 40890160) the National Hi-Tech Research and Development Program of China ("863" Project) (Grant No.2007AA12Z314) the Chinese Academy of Sciences Innovation Program 

主  题:earth’s plasmasphere dynamic global core plasma model extreme ultraviolet radiation lunar-based imaging 

摘      要:The dynamic global core plasma model(DGCPM) is used in this paper to calculate the He+ density distribution of the Earth s plasmasphere and to investigate the configurations and 30.4 nm radiation properties of the *** comparisons between the simulation results and IMAGE mission observations show:That the equatorial structure of the plasmapause is mainly located near 5.5 RE and the typical scale of plasmasphere shrinking or expansion within 10 min is approximately 0.1 RE;that the plasmaspheric shoulders are formed and rotate noon-ward from the dawn sector under the conditions of strong southward turning of the interplanetary magnetic field(IMF);that the plasmaspheric plumes will rotate dawn-ward from the night sector and become narrow for the southward turning of the *** simulated images from the lunar orbit show that the plasmasphere locating within the geocentric distance of 5.5 RE corresponds to field of view(FOV) of 10.7°×10.7° for the moon-based EUV imager,and that the 30.4 nm radiation intensity of the plasmasphere is 0.1-11.4 *** plasmaspheric shoulders and plumes locating toward the moon-side are for the first time simulated with typical scale level of 0.1 RE from the side view of the *** simulated results provide an important theoretical basis for the lunar-based EUV camera design.

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