Abstract The seismo-ionospheric coupling is a hot topic of modern scientific research. One of the most reasonable mechanisms is the hypothesis of quasistatic electric field. With a preliminary analytical method, electric field in F2-region before Wenchuan earthquake was derived from the five lower latitude ground-based ionosondes: Lhasa (29.63°N, 91.17°E), Chongqing (29.50°N, 106.40°E), Kunming (25.00°N, 102.70°E), Guangzhou (23.15°N, 113.35°E) and Haikou (23.15°N, 110.35°E). The results show that there was an anomalous enhancement of electric field in F2-region close to the epicenter with maximal amplitude ∼2mV/m (about 10 times of the background) at 15:00LT on 9 May, which is in line with the amplitudes of anomalous electric field related to some previous earthquakes observed by satellites.


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    Titel :

    Anomalous enhancement of electric field derived from ionosonde data before the great Wenchuan earthquake


    Beteiligte:
    Xu, Tong (Autor:in) / Hu, Yanli (Autor:in) / Wu, Jian (Autor:in) / Wu, Zhensen (Autor:in) / Li, Chunbin (Autor:in) / Xu, Zhenwen (Autor:in) / Suo, Yucheng (Autor:in)

    Erschienen in:

    Advances in Space Research ; 47 , 6 ; 1001-1005


    Erscheinungsdatum :

    2010-11-04


    Format / Umfang :

    5 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





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