trigonometric leveling

Investigation of accuracy of methods of trigonometric levelling during the transmission of elevations over water surfaces

Aims. The investigations of the transmission of elevations over water surfaces remain topical, so the first aim is to develop the technique of increasing the accuracy of the trigonometric instead of geometrical one. The second aim is to investigate the methods of trigonometric which can be used for the transmission of elevations over water surfaces with the use of modern devices. Methodology. Simultaneous and non-simultaneous reciprocal observations over different water surfaces have been carried out.

Determination of the earth surface movements in areas of Dniester HPPS using satellite and ground geodetic methods

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.

Investigation of the action of vertical refraction and precision trigonometric leveling over the water surface

In article described experimental researches of a vertical refraction on results of trigonometrically levelly above water lake surface of Beregany town discover laws of action of a refraction above lake. Methods of exception of influence of this factor are offered.

Approbation of application of non-simultaneous bilateral trigonometric leveling taking into account vertical efraction

Purpose. Development of efficient, economic and reliable method of trigonometric leveling that would allow replace the geometric leveling without loss of precision, especially during works in mountainous areas remains actual. Methodology.