Vestnik KRAUNTS. Fiziko-matematicheskie nauki

17-23

Authors: V. N. Marichev, D. A. Bochkovsky

Lidar complex at small station of high-altitude atmospheric sensing in Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences makes it possible to obtain promptly and regularly the profiles of scattering ratio up to the altitude of 70 km and atmospheric temperature and density in the altitude range of 10-70 km with the spatial resolution of 192 m. The measurements are performed under the conditions of clear sky or, at least, broken clouds. Weather forecast is used to plan the measurements, which are performed when weather forecast coincides with actual weather under nighttime clear-sky conditions. Remote or automatic control of lidar complex will make it possible to increase the efficiency and quality (through introduction of measurements in variable clouds) of accumulated data record and increase the number of sessions of atmospheric lidar sensing.

34-41

Authors: I. N. Panchishkina, G. G. Petrova, A. I. Petrov, E. V. Egorov, A. V. SHevchenko, A. I. Kupinskaya

Proceeding from the results of measurements near the earth’s surface, nonlinear effects associated with the dependence of electrical conductivity on the electric field strength have been observed. This is manifested in the loss of proportionality of the conductivity current density from the field intensity, and the nonlinearity manifests itself more noticeably at low values of electrical conductivity. Based on the data obtained, empirical regression series have been constructed and equations of the dependence of polar electrical conductivity on the electric field strength have been obtained. In the interval of a sharp decrease in the values of polar conductivities with multiple amplification of the electric field strength, their interrelation is approximated by a linear function with a high level of reliability.

55-61

Authors: V. I. Kozlov, D. G. Baishev

A comparative analysis of parameters of the geomagnetic field components and electrical potentials at station of the SHICRA SB RAS near the city of Yakutsk far from industrial noises from autumn 2016 to winter 2018 is executed. Variations of Earth’s magnetic field and electric potentials during the strong magnetic storm of September 7-9, 2017 are compared. Calculated correlation coefficient is 0.5-0.9.

74-82

Authors: O. V. Sheremetyeva

A model of five modes of deformation activity based on the compound Poisson process and its fractal generalizations is considered. Comparison of the analytical dependences with the experimental ones obtained by the authors Carbon and Buck, was carried out [1, 2].

99-114

Authors: E. O. Makarov, P. P. Firstov, D. V. Kostylev, E. S. Rylov, I. P. Dudchenko

Radon monitoring in the world literature is recognized as a promising method for predicting earthquakes. In the last decade on the Kamchatka Peninsula, the prospect of radon method to forecast subduction earthquakes has been quite convincingly demonstrated. The southern part of Sakhalin Island is a region of high seismic risk. The results obtained on Kamchatka give grounds to hope for the detection of precursor anomalies in the radon field (Rn) and for weaker, but also dangerous, small-focus earthquakes on Sakhalin Island. A network consisting of three points for monitoring volume activity of radon (VA Rn) in the air of the subsoil is currently operating in the test mode in the south of Sakhalin Island. In order to better understand the conditions of Rn migration to the surface, seismic survey was performed in the vicinity of the installed radiometers. Volume activity of radon is registered by α-radiation using the method of forced convection. The manifestation of weak seismic activity in the south of Kuril-Kamchatka and in the north of the Japanese seismic regions was reflected in the dynamics of the subsurface radon at two points. After testing the equipment and installing stationary points, it is planned to use radon monitoring data as an additional parameter to substantiate conclusions about the seismic hazard of the south of Sakhalin Island.