Abstract In this Part I of a more general paper on the analysis of ionospheric irregularities over Brazilian territory, we apply the Detrended Fluctuation Analysis (DFA) method to evaluate in situ equatorial F-region plasma bubbles events carried out with a sounding rocket over equatorial region in Brazil. The range of scaling exponents derived from the DFA technique are compared to previous results obtained using Power Spectral Density (PSD) technique (which is widely used in this area despite its recognized inaccuracy to analyze short series). The results obtained in this first part of our investigation, using DFA, also show a wide range of spectral index variation with standard deviation of the same order found from the previous application using PSD ( σ m 10 % ). Therefore, since the dependence of the technique are disregarded, our findings also supports that the observed lack of a universality class characterized by the nonexistence of a single spectral index (with σ m 2 % ) may be due to non-homogeneity energy cascades that can appear in the incoherent ionospheric turbulent process.


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    Titel :

    Spectral fluctuation analysis of ionospheric inhomogeneities over Brazilian territory. Part I: Equatorial F-region plasma bubbles


    Beteiligte:
    Fornari, G. (Autor:in) / Rosa, R.R. (Autor:in) / de Meneses, F.C. (Autor:in) / Muralikrishna, P. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 58 , 10 ; 2037-2042


    Erscheinungsdatum :

    2016-03-29


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch