MONITORING OF CHANGES IN GROUNDWATER VOLUME USING SIMPLEX WEIGHT INTERPOLATION

Iu.V. Sydorenko; Yu.А. Tarnavski; A.I. Onysko

Iu.V. Sydorenko National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” https://orcid.org/0000-0002-1953-0410
Yu.А. Tarnavski National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute» https://orcid.org/0000-0003-3226-3107
A.I. Onysko National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute» https://orcid.org/0000-0001-7178-1471

Abstract

The article considers the representation of the object in a vector field for calculating the change in the volume of groundwater when determining the concentration of pollutants. Simplex weighted interpolation methods are used in the modeling process.

Ever since mankind began to use nuclear power plants, it became necessary to check the environment for radioactive contamination. This task became especially relevant during the accident at the Chernobyl nuclear power plant. In our time, humanity is facing serious challenges in energy, which are connected both with natural disasters, such as floods, tsunamis, earthquakes, and with the results of enemy shelling during a full-scale war, which was unleashed by Russia. Many energy infrastructure facilities have been destroyed by the enemy, and the heavy load has now fallen on nuclear plants. Therefore, the relevance of the task of environmental monitoring takes on a new meaning.

During the inspection of the contamination of the aquifer in the area of the "Shelter" facility of the Chernobyl nuclear power plant, the task of tracking changes in radioactive contamination, taking into account the annual amplitude of groundwater fluctuations, arose. As it turned out, the concentration of radioactive elements in water changes when the groundwater level changes. This is due to a decrease in the volume of groundwater, and not as a manifestation of an increase in the number of pollutants. Therefore, there is a need to monitor the change in the total volume of water in the aquifer on the one hand, and its effect on the concentration of radioactive elements on the other.

From a large number of methods that can be used to solve this problem, deformation modeling methods were chosen by representing the object in a vector field using simplex weighted interpolation [4].

The purpose of the research is to improve the method of determining the change in the volume of the aquifer based on the georesearch database, taking into account the current situation of groundwater. The article proposes the use of simplex weighted interpolation to construct a vector field to obtain a suitable model and the possibility of visual tracking of the process of changing the groundwater level in real time.

Keywords: deformation modeling, vector field, simplex, simplex weighted interpolation.

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