Volume 43 Issue 5
Nov.  2023
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Article Navigation >  Chinese Journal of Space Science  > 2023  >  43(5): 821-832 Open Access
HE Hongwei, WANG Xiuying, ZHAO Guocun, YANG Dehe, WANG Qiao, HUANG Jianping. Distribution of Equatorial Electric Field and Its Relation with Ionosphere Distribution Detected by the ZH-1 Satellite (in Chinese). Chinese Journal of Space Science, 2023, 43(5): 821-832 doi: 10.11728/cjss2023.05.2023-0020
Citation: HE Hongwei, WANG Xiuying, ZHAO Guocun, YANG Dehe, WANG Qiao, HUANG Jianping. Distribution of Equatorial Electric Field and Its Relation with Ionosphere Distribution Detected by the ZH-1 Satellite (in Chinese). Chinese Journal of Space Science, 2023, 43(5): 821-832 doi: 10.11728/cjss2023.05.2023-0020
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Distribution of Equatorial Electric Field and Its Relation with Ionosphere Distribution Detected by the ZH-1 Satellite

doi: 10.11728/cjss2023.05.2023-0020 cstr: 32142.14.cjss2023.05.2023-0020

  • National Institute of Natural Hazards, Ministry of Emergency Management of China, Beijing 100085

  • Received Date: 2023-02-11
  • Rev Recd Date: 2023-04-24
    • Available Online: 2023-07-26
    Abstract
  • The nearly east-west power spectral density data of VLF band in 2019, obtained by the Zhangheng-1 satellite, are used to carry out studies on the background distribution of the equatorial electric field, its seasonal variations, as well as its relation with the background ionosphere. The results are as follows: variations of waveform distributions with the season are shown for the daytime equatorial electric field background in the equator and its adjacent regions, with wave number 3 and wave number 4 being the dominant structure; the longitude waveform distribution and its variation with the season can be seen from the spatial distribution of nighttime field background though its regularity is weaker than that of the daytime data; the daytime electric field background has a highly positive correlation with the ionospheric background, with a seasonal variation patter of spring-autumn peaks; Seasonal variation of equatorial nighttime electric field background is characterized by summer and winter peaks, and the correlation between the two is generally negative. Therefore, the spatiotemporal distribution of the electric field background and its correlation with the ionosphere background suggests that the electric field observations are consistent with the ionospheric observations in terms of statistical features obtained both from large as well as relatively small spatial scales. The EFD payload, as one of the payloads that produces the most data, provides a usable dataset for the study of ionosphere-related scientific problems.

     

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