The paper presents the results of GNSS observations, provided by the authors in 2010-2019 years, in the zone of contact of tectonic structures of the Siberian platform, West-Siberian plate and West-Sayan orogenic area. We presented the first time assessment of the velocities of modern horizontal movements and the structural-kinematic model of block movements in a southern sector of the Yenisei Ridge. This model enables to assess the geodynamic safety of disposal of high-level radioactive waste in granite gneisses rocks of the Nizhne-Kansk massif.

This paper analyzes and reviews the rapid uplifts of the Earth’s crust in the Caucasus that occurred over the last century. The uplifts were registered by precise repeated state leveling and reflected on officially published maps of vertical movements of the Earth’s crust. This study summarizes information on the region’s vertical movements over more than a century. The present study describes the technology for creating maps of recent vertical movements of the Earth’s crust using precision leveling data. This paper summarizes cases of recording uplifts of the Earth’s surface in other regions of the world in connection with seismic activity. The authors carried out intercomparison of vertical movements with tectonics, seismicity, and geophysical fields, which discovered their apparent mutual correspondence. This indicates the deep tectonic nature of the observed uplifts of the Earth’s crust. Spatial and temporal agreement with the distribution of strong earthquakes showed a natural relationship. It has been shown that strong earthquakes are confined to the boundaries of zones of rapid uplift. They occur predominantly in areas of transition between uplifts and subsidence. The results obtained demonstrate the role of the study and observations of vertical movements of the Caucasus in assessing periods and areas of increased seismic hazard.

In this study, we developed a new approach for feature engineering in geosciences. The main focus of this study was feature engineering based on the implementation of the dynamic activity index (MDAI) as a function of the anomaly of the spatial distribution of data, using systems and discrete mathematical analysis. The methodology for calculating MDAI by groups, geomorphological variability, the density of tectonic faults, stress-strain state, and magnetic field anomalies, is presented herein for a specific area. A detailed analysis of the correlation matrix of MDAI revealed weak correlations between the development features. This showed that the considered properties of the geological environment are independent sets and can be used in the analysis of its geodynamic stability. As a result, it was found that most of the territory where high-level radioactive waste (HLRW) disposal is currently planned is in a relatively stable zone.

The authors present the results of developing a library designed for GNSS deformation measurement upshot analysis in the Python 3 environment and their visualization in the QGIS 3 geographic information system. Development of global navigation satellite systems (permanent networks, data publications, creation of software for processing satellite measurement results) has led to

The results of geodynamic interpretation of the results of GNSS observations of present-day movements and modeling of the stress-strain state of the upper part of the Earth's crust in the area of the construction of an underground research laboratory to substantiate the safety of disposal of high-level long-lived radioactive waste in granite-gneiss rocks of the Nizhne-Kansk massif are presented. The kinematic model of the area made it possible to assess the directions of block movements of large structural blocks. The greatest movement gradients were noted in the west, between the underground research laboratory site and the contact between the Siberian Platform and the West Siberian Plate along the Atamanovsky Fault. Local zones of stress concentration have been identified, in which destruction of the rock mass in the near-contour zone of underground workings is most likely. Analysis of models and results of GNSS observations showed that the structural-tectonic block, in which the construction of the underground research laboratory is planned, is in relatively calm geodynamic conditions. Present-day movements determine the regime of sublatitudinal compression in azimuth close to 100-1100 at the underground research laboratory construction site. A systematic analysis of geological and geophysical data made it possible to obtain new knowledge about the kinematics and stress-strain state of the rock mass in the southern part of the Yenisei Ridge, necessary to ensure the geoecological safety of isolation of high-level radioactive waste in the granite-gneiss rocks of the Nizhne-Kansk massif.

The procedures of GNSS-equipment accuracy testing are considered in the aspect of the matter of predicting the earth’s crust movements and deformations when substantiating the geoecological safety of highly radioactive waste disposal in geological formations. For verification, the 1st category reference basis of the Federal Scientific-Technical Center for Geodesy, Cartography and Spatial Data Infrastructurе was used. The experiment was performed with a two-system GNSS equipment of the geodetic class. The session of simultaneous observations at the points of the reference basis lasted 4 hours. A special technique is proposed for assessing the contribution to the total error of each measuring equipment set. The technique is based on the well-known procedure of determining the basis lengths from linear measurements in all combinations using the least squares method. Estimates of the GNSS measurements accuracy for simultaneous observing two global navigation systems GLONASS and GPS are obtained. The root-mean-square error of the contribution to measuring the baseline vector length of one equipment set was 2,9 mm.