Seasonal Variations in the b-Value of the Reservoir-Triggered Seismicity in the Koyna–Warna Region,Western India

Izvestiya, Physics of the Solid Earth - Abstract—The analysis of the local earthquake catalog revealed fine features in the behavior of seasonal components of induced seismicity in the...     

Dependence of the power consumed by the magnetosphere on the solar wind parameters

The results of the previous studies, where the expressions were obtained for the electric current, which is generated at the bow shock front and is closed through the magnetosphere, and for the magneto-pause potential as a function of such solar wind parameters as the plasma density and velocity and the IMF intensity, are used. The power (W) consumed by the magnetosphere is equal to the Poynting vector flux S through the magnetopause. According to the special case of the Poynting theorem applied by Heikkila to the-magnetosphere, the energy flux can be expressed in terms of the electric potential (the integration is carried out over the entire surface of the magnetosphere). As a result, the required dependence, which is quadratic with respect to the IMF B _z component, has been obtained for W. It is discussed why the magnetosphere is energy-isolated at the northward IMF B _z component despite this.     

Development of Technology for Soldering Small-Diameter Pipelines from Aluminum Alloys and Dissimilar Materials

Solar System Research - The article presents the results of research carried out in the development of technology for soldering pipelines of small diameter of aluminum alloys and dissimilar...     

Vertical structure of the quasi-two-dimensional velocity field of a viscous incompressible flow and the problem of nonlinear friction

An approximate theory is constructed to describe quasi-two-dimensional viscous incompressible flows. This theory takes into account a weak circulation in the vertical plane and the related divergence of the two-dimensional velocity field. The role of the nonlinear terms that are due to the interaction between the vortex and potential components of velocity and the possibility of taking into account the corresponding effects in the context of the concept of bottom friction are analyzed. It is shown that the nonlinear character of friction is a consequence of the three-dimensional character of flow, which results in the effective interaction of vortices with vertical and horizontal axes. An approximation of the effect of this interaction in quasi-two-dimensional equations is obtained with the use of the coefficient of nonlinear friction. The results based on this approximation are compared to the data of laboratory experiments on the excitation of a spatially periodic fluid flow.     

Wildfire Impact on the Main Tree Species of the Near-Yenisei Siberia

Izvestiya, Atmospheric and Oceanic Physics - Wildfires are the major cause of forest death in Siberia, as well as one of the main ecological factors forming biodiversity. Here, we present the...     

Determination of the Energy Properties of Wildfires in Siberia by Remote Sensing

Izvestiya, Atmospheric and Oceanic Physics - As applied to the conditions of wildfires in Siberia, remote sensing is adapted to record the radiation power from the active fire zone in the range of...     

Approximation of the High-Temperature Fire Zone Based on Terra/MODIS Data in the Problem of Subpixel Analysis

Izvestiya, Atmospheric and Oceanic Physics - In this work, an improved approach of the pixel-based analysis of the Terra/MODIS imagery is proposed. The approach allows us to improve the accuracy in...     

Problems of studying an energetically active geologic medium

Deformations of the geologic medium are traditionally regarded as a result of the application of external forces. At the same time, such deformations can be realized at the expense of energy sources contained in the deformed bodies themselves. Since the idea of energetic inactivity of the medium dominates as an organizing center of scientific research in this field, it blocks the study of media in the state of energetic activity. The work discusses possible ways to overcome this conflict on the basis of specific examples.