METHODICAL BASIS OF GEOPHYSICAL MONITORING OF GROUND WATER RIVER FLOODLAND

• Main Authors: Denis A. Solodovnikov, Natalya M. Khavanskaya, Nikolai V. Vishnyakov, Elena A. Ivantsova
• Format: Article
• Language: Russian
• Published: Kamerton 2017-10-01
• Series: Ûg Rossii: Èkologiâ, Razvitie
• Subjects: ground water; floodland; arid zone; geodetic profiling; geophysical exploration methods; geophysical methods; georadiolocation; ground water table; geoinformation technology
• Online Access: https://ecodag.elpub.ru/ugro/article/view/955

Aim. Ground water reserves in the floodplains that form during the spring flood is of great importance for the sustainable development of arid regions. They support the ecosystems and provide the population with fresh water. Monitoring and management of ground water is an important economic task. The authors develop a methodology for predicting ground water for the conditions of floodplains of the rivers in the arid zone of the South Russia. The proposed methodology allows you to minimize labor costs, improve the accuracy of research results. Methods. The methodology of the study covers three stages. On the first, geodetic profiling methods are applied to key areas that have a characteristic conditions for the study area. The second stage is the determination of the ground water table level by a geophysical method with the help of a georadiolocation. The third stage is the analysis and interpretation of the measured data, the construction of models for the distribution and dynamics of ground water in the ArcGis. Results. Preliminary data obtained from the georadiolocation profiling of the river floodplain contain more objective information on the depth of the ground water table than the data of the drilling. The results of continuous georadiolocation profiling when combined with the hypsometrical profile make it possible to construct a model of ground water dynamics by the seasons of the year. Main conclusions. Previous studies in the Volga-Akhtuba floodplain, using the proposed methods, showed their reliability and high information value. Interpretation and data processing through geoinformation systems allows to build a model of ground water dynamics by seasons of the year. The proposed method can be tested for river deltas of the Don basin.