Theoretical study of the ionospheric dynamo region inside the South Atlantic Anomaly

作     者：SiQi Yi XiaoJun Xu ZiLu Zhou Qing Chang Xing Wang Lei Luo PeiShan He Hui Li SiQi Yi;XiaoJun Xu;ZiLu Zhou;Qing Chang;Xing Wang;Lei Luo;PeiShan He;Hui Li

作者机构：State Key Laboratory of Lunar and Planetary SciencesMacao University of Science and TechnologyTaipa Macao 999078China CNSA Macao Center for Space Exploration and ScienceTaipa Macao 999078China State Key Laboratory of Space WeatherNational Space Science CenterChinese Academy of SciencesBeijing 100190China University of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Earth and Planetary Physics》 (地球与行星物理（英文版）)

年 卷 期：2023年第7卷第1期

页      面：84-92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(undergrant no.42122061) Macao Foundation the Project of Civil Aerospace“13th Five Year Plan”Preliminary Research in Space Science(grant nos.D020308 and D020301) the international partnership program of the Chinese Academy of Sciences(grant no.183311KYSB20200017) 

主　　题：South Atlantic Anomaly ionospheric dynamo region ionosphere 

摘      要：The South Atlantic Anomaly(SAA)is a region where the geomagnetic field is significantly lower than that of the surrounding *** the basis of the models of CHAOS-7.8,Mass Spectrometer Incoherent Scatter Model(NRLMSISE-00),and International Reference Ionosphere 2016(IRI-2016),we theoretically investigated the lower and upper boundaries of the ionospheric dynamo region inside the *** the ionospheric dynamo region,electrons are coupled with magnetic field lines,whereas ions are decoupled from magnetic field *** results showed that the ionospheric dynamo region inside the SAA is higher and larger than that outside the *** also studied the boundary variations of the dynamo region inside the SAA depending on the seasons and solar *** found that the dynamo region inside the SAA is the highest and largest in the summer of the southern hemisphere at solar *** larger and higher altitude range of the ionospheric dynamo region in the SAA can contribute to the stronger ionospheric currents in this region.