Dynamics of the Saatli Superdeep GPS (SATG) – Station

Abstract

The purpose of work was a geodetic analysis and comparison of the results obtained for the periods 2015-2017 yy. The reason for comparing these periods is their different time interval. The relevance of the work lies in the fact that, based on the data received from the GPS station, it will allow monitoring the azimuthally direction of the well, determining the coordinates of the investigated well in three dimensions in the geographic coordinate system, and determining the velocity well displacement, will determine the movements of the tectonic block of the adjacent region based on GPS data, determine the horizontal displacement parameters, and identify the cause of both vertical and horizontal displacement of the well. The article presents a methodology for calculating the speeds of modern horizontal displacements of the Earth’s crust of the Saatli region for the period 2015‑2017 yy. as a whole and for 2015, 2016, 2017. separately. Methods of measuring GPS speeds, both vertical and horizontal, initially provide absolute values for the horizontal components at each point: west-east, north-south components of the measurement point. A feature of the GPS method is that, technically and technologically, the system allows you to evaluate very small changes in the coordinates in the phase measurement method – (fractions of a millimeter), which is achieved by high accuracy and stability of the atomic clock of the system. Using the GAMIT / GLOBK software package, the joint seismic velocity associated with the earthquake event was calculated. The results of the analysis showed that the eastern side from the SATG_GPS station moves to the northeast at an average speed of about 3-14 mm / g, while the western side of the fault moves to the northeast at a speed of about 11‑15 mm/a. Thus, a diagram of the change in direction of the base station SATG_GPS of the Saatli region was obtained.