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

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Abstract

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.

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Authors and Affiliations

  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

    XueWu Cheng, Yong Yang, FaQuan Li, Xin Lin, ShaLei Song & ShunSheng Gong

  2. National Space Science Center, Chinese Academy of Sciences, Beijing, 100190, China

    ZeLong Wang, GuoTao Yang, JiHong Wang, Xiong Hu & XiaoCheng Wu

  3. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, 430079, China

    ZhengYu Zhao & Wei Gong

  4. College of Earth Science, University of Chinese Academy of Sciences, Beijing, 100049, China

    ZeLong Wang & Xin Lin

Authors
  1. XueWu Cheng
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  2. Yong Yang
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  3. ZeLong Wang
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  4. FaQuan Li
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  5. GuoTao Yang
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  6. ZhengYu Zhao
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  7. Wei Gong
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  8. JiHong Wang
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  9. Xiong Hu
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  10. Xin Lin
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  11. XiaoCheng Wu
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  12. ShaLei Song
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  13. ShunSheng Gong
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Correspondence to XueWu Cheng.

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Cheng, X., Yang, Y., Wang, Z. et al. Joint observation results of Na layer and ionosphere in Wuhan during the Total Solar Eclipse. Sci. China Earth Sci. 59, 418–424 (2016). https://doi.org/10.1007/s11430-015-5126-2

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  • DOI: https://doi.org/10.1007/s11430-015-5126-2

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