Joint observation results of Na layer and ionosphere in Wuhan during the Total Solar Eclipse

查看全文 作　　者：CHENG [1]XueWu;YANG [1]Yong;WANG [2,4]ZeLong;LI [1]FaQuan;YANG [2]GuoTao;ZHAO [3]ZhengYu;GONG [3]Wei;WANG [2]JiHong;HU [2]Xiong;LIN [1,4]Xin;WU [2]XiaoCheng;SONG [1]ShaLei;GONG [1]ShunSheng

机构地区：[1]State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences,Wuhan 430071,China;[2]National Space Science Center,Chinese Academy of Sciences,Beijing 100190,China;[3]State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,China;[4]College of Earth Science,University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Science China Earth Sciences》索引2016年第59卷第2期,共7页

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.10978003;41104101;41101334);the National High-tech R&D Program 摘　　要：During the total solar eclipse on July 22, 2009 in Wuhan, the joint observation test of Na layer and ionosphere was conducted by using the daytime observation atmospheric lidar and the GPS ionosphere detector. The results show that the full width at half maximum(FWHM) of Na layer density slightly narrowed during the total solar eclipse and broadened after the eclipse, while the height of Na peak slightly decreased in the eclipse and increased after the eclipse. These implying that Na layer changes reflect the rapid process of sunrise and sunset. The ionosphere total electron content(TEC) and the sky background light noise also presented an obvious fluctuation characteristic with the changes of solar irradiation during the process of total solar eclipse. The difference lies in that the changes of FWHM of Na layer atoms are much slower than that of ionosphere, the reason for this might be that the Na layer, after being disturbed by the total solar eclipse, will generate a series of complicated photochemical reactions and momentum transport processes, and then recombine the Na atoms. The Na atoms to be detected by the lidar need a lag process, which rightly conforms to the theoretical simulated results. 关键词：观测试验电离层武汉市钠层日食全球定位系统大气激光雷达激光雷达探测

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Joint observation results of Na layer and ionosphere in Wuhan during the Total Solar Eclipse

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