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Analysis of geophysical and meteorological parameters influencing Rn-222 activity concentration in Mladec caves (Czech Republic) and in soils of Phlegrean Fields caldera (Italy)

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F20%3A00345800" target="_blank" >RIV/68407700:21340/20:00345800 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1016/j.apradiso.2020.109140" target="_blank" >https://doi.org/10.1016/j.apradiso.2020.109140</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.apradiso.2020.109140" target="_blank" >10.1016/j.apradiso.2020.109140</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Analysis of geophysical and meteorological parameters influencing Rn-222 activity concentration in Mladec caves (Czech Republic) and in soils of Phlegrean Fields caldera (Italy)

  • Original language description

    The present work concerns a detailed analysis of Radon time series to differentiate endogenous from exogenous phenomena which provide anomalous signals. Two-year data from two sites in Czech Republic and in Italy are analyzed in order to contribute to the prevention of natural hazards. A new hybrid forecasting method is implemented and tuned for the identification of Radon anomalies in the time series. It is based on the combination of Multiple Linear Regressions, Empirical Mode Decomposition and Support Vector Regression methods that decompose the signal and analyze the components to distinguish the variations due to Radon originated in depths from those due to environmental parameters. The possible correlations with fumarolic tremors in the Italian site and the faults micmdisplacements in the Czech site have been studied, as well as with the earthquakes that have influence on two studied areas. Results show that: (i) the used method is very effective considering the calculated statistical uncertainties; (ii) the outer temperature is the main influencing Radon driving force; (iii) the extracted Radon anomalies due to endogenous phenomena are well correlated with fault displacements, fumarolic tremors, and with earthquakes under a characteristic delay time for each area; (iv) significant correlations among earthquake magnitude and depth with fault displacement and fumarolic tremor are found.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10505 - Geology

Result continuities

  • Project

    <a href="/en/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Center for advanced applied science</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2020

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Applied Radiation and Isotopes

  • ISSN

    0969-8043

  • e-ISSN

    1872-9800

  • Volume of the periodical

    160

  • Issue of the periodical within the volume

    Jun

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    12

  • Pages from-to

  • UT code for WoS article

    000528842400005

  • EID of the result in the Scopus database

    2-s2.0-85082401305