Anomaly distribution of ionospheric total electron content responses to some solar flares

作     者：HuiJun Le LiBo Liu YiDing Chen Hui Zhang 

作者机构：Key Laboratory of Earth and Planetary PhysicsInstitute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China Innovation Academy of Earth ScienceChinese Academy of SciencesBeijing 100029China Beijing National Observatory of Space EnvironmentInstitute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China College of Earth and Planetary SciencesUniversity of the 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：2019年第3卷第6期

页      面：481-488页

核心收录：

学科分类：07[理学] 

基　　金：supported by the National Key Research and Development Program (2018YFC1503504) the National Natural Science Foundation of China (41822403, 41621063, 41774165) the Youth Innovation Promotion Association CAS 

主　　题：solar flare ionospheric response transport process 

摘      要：Previous studies have shown that the ionospheric responses to a solar flare are significantly dependent on the solar zenith angle(SZA):the ionospheric responses are negatively related to the *** largest enhancement in electron density always occurs around the subsolar ***,from 2001 to 2014,the global distribution of total electron content(TEC)responses showed no obvious relationship between the increases in TEC and the SZA during some solar *** these solar flares,the greatest enhancements in TEC did not appear around the subsolar point,but rather far away from the subsolar *** distribution of TEC enhancements showed larger TEC enhancements along the same *** distribution of anomalous ionospheric responses to the solar flares was not structured the same as traveling ionospheric *** anomaly distribution was also unrelated to the distribution of background neutral *** could not be explained by changes in the photochemical process induced by the solar ***,the transport process could be one of the main reasons for the anomaly distribution of ionospheric responses to the solar *** anomaly distribution also suggests that not only the photochemical process but also the transport process could significantly affect the variation in ionospheric electron density during some solar flares.