@Article{JoshiRoSaKhMeStMu:2020:StChEq,
author = "Joshi, Neelakshi and Rosa, Reinaldo Roberto and Savio, Siomel and
Kherani, Esfhan Alam and Meneses, Francisco Carlos and Stephany,
Stephan and Muralikrishna, Polinaya",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Structural characterization of the equatorial F region plasma
irregularities in the multifractal context",
journal = "Journal of Geophysical Research: Space Physics",
year = "2020",
volume = "38",
pages = "445--456",
keywords = "ionospheric plasma, non-linear algorithms, multifractal analysis,
equatorial F region.",
abstract = "In the emerging ionosphere-space-weather paradigm, investigating
dynamical properties of ionospheric plasma irregularities using
advanced computational non-linear algorithms is providing new
insights into their turbulent-like nature, for instance, the
evidence of energy distribution via multiplicative cascade. In
this study, we present multifractal analysis of the equatorial F
region in situ data obtained from two different experiments
performed at Alc{\^a}ntara (2.4°S; 44.4°W), Brazil to explore
their scaling structures. First experiment observed several
large-medium scale plasma bubbles whereas second experiment
observed vertical uplift of the base of F region. Multifractal
detrended fluctuation analysis and p-model fit is used to analyze
the plasma density fluctuation time series. Result shows presence
of multifractality with degree of multifractality 0.53-0.93 with
0.3 <= p <= 0.4 cascading probability for first experiment.
Another experimental data also exhibits multifractality with
degree of multifractality 0.19-0.27 with 0.42 <= p <= 0.44
cascading probability in the ionospheric plasma irregularities.
Our results confirm the nonhomogeneous nature of plasma
irregularities and characterize the underlying nonhomogeneous
multiplicative cascade hypothesis in the ionospheric medium.
Differences in terms of scaling and complexity in data belonging
to different types of phenomena are also addressed.",
doi = "10.5194/angeo-38-445-2020",
url = "http://dx.doi.org/10.5194/angeo-38-445-2020",
issn = "2169-9380",
language = "en",
targetfile = "Neelakshi2020_angeo.pdf",
urlaccessdate = "28 abr. 2024"
}