METADATA IN ENGLISH

About the journal

NAUKA I TEKHNOLOGICHESKIE RAZRABOTKI (SCIENCE AND TECHNOLOGICAL DEVELOPMENTS), ISSN: 2079-5165, eISSN: 2410-7948, DOI: 10.21455/std; https://elibrary.ru/title_about.asp?id=32295; http://std.ifz.ru/. The journal was founded in 1992.

COMPREHENSIVE METHODOLOGY FOR DESCRIBING
AND FILTERING EXOGENOUS EFFECTS IN MONITORING DATA, TAKING INTO ACCOUNT THE TYPE OF OBSERVATIONS
AND EXPERIMENTAL DATA DEFECTS

A.V. Desherevskii, A.Ya. Sidorin, E.A. Fattakhov

Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences, Moscow, Russia

Corresponding author: A.Ya. Sidorin, e-mail: al_sidorin@hotmail.com

Highlights

– A comprehensive methodology for filtering exogenous effects in monitoring data is developed

– Algorithms are implemented as open access software

– The methodology is necessary when processing real monitoring data

Abstract. A comprehensive methodology has been developed for high-quality preparation of long-term monitoring data for their processing and analysis. It is shown that the application of this methodology is a necessary step in the processing of any long-term monitoring data in real conditions. The practical significance of the development is significantly enhanced by the fact that the algorithms of the methodology are implemented as a software product that is available for wide use. As an experimental basis for the development, we used the data of geoelectric monitoring by the VES method with the possibility of tracking variations in the electrical resistivity at different depths, as well as the results of operational downhole resistivity measurements, electromagnetic, geoacoustic and inclinomeric observations. Two models are proposed for describing seasonal variations in the electrical resistivity of rocks in a well in the bypass filtration zone of the Chirkey Hydropower Dam in Dagestan: a model of average seasonal functions, which assumes strict constancy of the seasonal course in different years, and an adaptive model that allows changing the amplitude of seasonal effects from year to year. Time series of data are constructed filtered out from seasonal changes. A comprehensive methodology for describing and filtering seasonal effects in monitoring data has also been successfully applied to analyze observational data by other geophysical methods, in particular with inclinometric, geoacoustic and electromagnetic monitoring in different regions of the country. It is concluded that for an accurate assessment of the seasonal course, special data preparation is necessary, taking into account the features of the series.

Keywords: geophysical monitoring, exogenous effects, experimental data defects, filtration

Cite this article as: Desherevskii A.V., Sidorin A.Ya., Fattakhov E.A. Comprehensive methodology for describing and filtering exogenous effects in monitoring data, taking into account the type of observations and experimental data defects, Nauka i Tekhnologicheskie Razrabotki (Science and Technological Developments), 2019, vol. 98, no. 2, pp. 25–60. [Special issue “Methodological problems of geoacoustic and geoelectric studies”]. [in Russian]. https://doi.org/10.21455/std2019.2-2

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About the authors

DESHEREVSKII Alexey Vladimirovich – Cand. Sci. (Phys. and Math.), Leading Researcher, Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences. 123242, Moscow, ul. Bolshaya Gruzinskaya 10, stroenie 1. E-mail: adeshere@ifz.ru

SIDORIN Alexander Yakovlevich – Cand. Sci. (Phys. and Math.), Principal Researcher, Head of Laboratory, Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences. 123242, Moscow, ul. Bolshaya Gruzinskaya 10, stroenie 1. E-mail: al_sidorin@hotmail.com

FATTAKHOV Evgeny Albertovich – Junior Researcher, Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences. 123242, Moscow, ul. Bolshaya Gruzinskaya 10, stroenie 1. E-mail: fea@ifz.ru