GPS-Derived Velocity Fields of Northern Tien Shan from Permanent Stations in Kazakhstan

This study presents and analyzed the data on GPS observations from 10 permanent stations located in the Northern Tien Shan, Kazakhstan. Analyzed data covers the 6 years, for the period of 2009-2015, which is acceptable for the geodynamic analysis. This investigation based on well-established processing method with GAMIT/GLOBK software package. The velocity field and motion rates of GPS sites were analyzed in the study. All stations showed northwest velocity field with the rate of 2 - 7 mm per year. Motion rates of GPS sites across the Northern Tien Shan decrease northwestward in gradual way. The speeds and directions of the vector fields in South-eastern Kazakhstan do not contrary with modern concepts of regional geodynamics and crustal deformation rates.