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Abstract <p>An analysis of the contemporary geodynamic situation in the Vladikavkaz area is presented, based on long-term GNSS (Global Navigation Satellite System) observations at continuous stations and field sites at the Ossetian geodynamic polygon. Velocity estimates were obtained in two reference frames: the global International Terrestrial Reference Frame (ITRF) and the regional Eurasia-fixed frame (ITRF2014_EURA). In the ITRF, the motion of the region is consistent with the overall motion of the Greater Caucasus in a northeasterly direction at a rate of 27–30 mm/year. The results of velocity profiling in the local reference frame showed a number of oppositely directed kinematic features that define the contemporary geodynamic regime of this area. These results, as well as those from seismological studies, indicate that the city of Vladikavkaz is located in a region with relatively active geodynamic processes.</p>

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Geodynamics of the Vladikavkaz Area Based on GNSS Observations at the Ossetian Geodynamic Polygon

  • 期刊论文

  • 发表日期：

    2026年2月1日

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  • A. P. Mironov,
  • V. K. Milyukov,
  • A. N. Ovsyuchenko,
  • Kh. M. Khubaev,
  • S. O. Dzeboev

摘要

Abstract

An analysis of the contemporary geodynamic situation in the Vladikavkaz area is presented, based on long-term GNSS (Global Navigation Satellite System) observations at continuous stations and field sites at the Ossetian geodynamic polygon. Velocity estimates were obtained in two reference frames: the global International Terrestrial Reference Frame (ITRF) and the regional Eurasia-fixed frame (ITRF2014_EURA). In the ITRF, the motion of the region is consistent with the overall motion of the Greater Caucasus in a northeasterly direction at a rate of 27–30 mm/year. The results of velocity profiling in the local reference frame showed a number of oppositely directed kinematic features that define the contemporary geodynamic regime of this area. These results, as well as those from seismological studies, indicate that the city of Vladikavkaz is located in a region with relatively active geodynamic processes.