Establishing the Dependence between the Salinity and Quality Factor Based on GPR Data

Abstract

The paper presents the results of research, the purpose of which was to establish the relationship between the electrical conductivity, salinity and quality factor Q obtained on the basis of GPR data. The essence of the research is the determination of prospects for quantitative evaluation of geophysical data based on the aggregation of electro resistance methods and GPR. The practical part of the paper describes the method of forming a two-layer tank GPR laboratory model and ways of measuring its electro-physical parameters using the traditional geophysical methods with standard equipment as well as auxiliary measurement devices. The theoretical part of the paper is devoted to the implementation of various approaches to the calculation of the quality factor Q of the environment based on the laboratory GPR measurements. The experimental data confirmed by analytic calculations evidence the exponential dependence of the quality factor Q on the mineralization. An important conclusion is that the salinity change affects the quality factor Q less than the electrical conductivity.

Keywords

• Ground penetrating radar
• salinity
• electrical conductivity
• quality factor Q
• tank-model
• spectral ratio method
• amplitude decay method