Determination of the earth surface movements in areas of Dniester HPPS using satellite and ground geodetic methods
Journal Title: Геодинаміка - Year 2015, Vol 19, Issue 2
Abstract
Purpose. The purpose of this study is to determine the horizontal movements of the earth surface in the vicinity of the main waterworks Dniester HPPS and the surrounding area using technologies of satellite monitoring by global navigation satellite system (GNSS). The territory is under the influence of anthropogenic impact of HPPS cyclical operating mode. To assess the accuracy of horizontal displacements of HPPS water intake at points with limited reception of satellite signals using compliant data of satellite and linear-angular measurements. To explore the possibility of replacing geometrical leveling of second class with trigonometric levelling in areas with large elevation on the basis of three-year cycles of trigonometric leveling. Methodology. To determine the coordinates of points the technique of GNSS measurements implementation was elaborated, which allows to provide precision of plane coordinates with mean square error of ± 2mm for points with forced centering of receivers’ antennas. Execution method of precision linear-angular measurements considering atmospheric refraction was applied. Results. The results of this study are: obtained vectors of horizontal displacements of control geodetic network points of the Dniester HPPS by satellite method. Horizontal displacements of water outlets points are determined by two independent methods and their comparison was made. According to linear-angular measurements there were obtained elevations between points of control network and water intake points and their change for the period 2012-2014. The accuracy of elevations obtained by trigonometric leveling method does not exceed the tolerances of geometric leveling of the second class. Originality. Using high-precision GNSS measurements there were detected movements of the earth's surface on area, which suffers from anthropogenic impact of the Dniester HPPS. The obtained displacement of water outlets on the results of satellite and terrestrial geodetic measurements are mostly coincided what is confirmed by the data of three-year observation period. Practical significance. The use of developed techniques of the observations for the horizontal movements of the earth surface in areas exposed to anthropogenic load will increase the reliability and efficient operation of hydropower facilities. The developed method of precision trigonometric leveling significantly reduces the time of work implementations and provides the precision of geometric leveling of second class.
Authors and Affiliations
I. S. Sidorov, S. Periy, V. H. Sarnavskyj
Keywords
Related Articles
- EP ID EP458937
- DOI 10.23939/jgd2015.02.015
- Views 101
- Downloads 0
Investigation of the interrelationship between changes and redistribution of angular momentum of the Earth, the Antarctic tectonic plate, the atmosphere, and the ocean
Purpose. The purpose of this work is elaboration of the results of long-term GNSS-observations at permanent stations located on the Antarctic tectonic plate; the determination of the change in its rotational parameters a...
Electromagnetic monitoring of environmentally problematic objects in Precarpathians: results and technological means used
Purpose. Designing both the apparatus and methodical means based on the classical methods of electroprospecting and their modification. Using this set for an elecromagnetic monitoring of environmentally problematic objec...
Gas-generation potential estimation of silurian shale deposits of Volhyno-Podillya margin of East European platform
Purpose. Estimation of gas-shale potential of rocks on the base of experimental researches of core-samples and thermobaric terms determination, that are most favorable for the emission of gaseous hydrocarbons from rocks....
New occurrence of iron cilicide in the Ukraine. Cosmogenic or telluric nature?
Several type of particles that is completely or partially made of iron cilicide have been collected in different site of Ukraine. Aim. Our objective is to recognize the primary nature of these substance based on detail...
Analysis of the results of vertical crust movement velocities of the European coastline per the tide gauge and GNSS-observation data
Purpose. The purpose of the study is to detect and investigate the differences in determining vertical crust movement velocities (VCMV) in Europe applying two independent methods: tide gauge and GNSS-observations. Method...