A5022384052- Earthquake Detection and Analysis
- Ionosphere and magnetosphere dynamics
- Seismic Waves and Analysis
- Geomagnetism and Paleomagnetism Studies
- Lightning and Electromagnetic Phenomena
- Geophysical and Geoelectrical Methods
- Geophysics and Sensor Technology
- Solar and Space Plasma Dynamics
- Geophysical Methods and Applications
- earthquake and tectonic studies
- Geotechnical and Geomechanical Engineering
- High voltage insulation and dielectric phenomena
- Seismology and Earthquake Studies
- Combustion and Detonation Processes
- Metal Alloys Wear and Properties
- Material Properties and Applications
- High-pressure geophysics and materials
- Material Properties and Failure Mechanisms
- Electromagnetic Launch and Propulsion Technology
- Energetic Materials and Combustion
- Engineering Technology and Methodologies
- Characterization and Applications of Magnetic Nanoparticles
- Geophysics and Gravity Measurements
- Gas Dynamics and Kinetic Theory
- Hydraulic Fracturing and Reservoir Analysis
Schmidt Institute of Physics of the Earth
2020-2024
Institute of Terrestrial Magnetism Ionosphere and Radio Wave Propagation
2016-2024
Research Institute of Precision Instruments (Russia)
2019
Moscow Engineering Physics Institute
2007-2018
Instituto de Pesquisas da Marinha
2017
Institute of Engineering Physics
1978-2007
Belarusian National Technical University
2007
Russian Academy of Sciences
2004
Institute of Glass
1999-2002
Institute of Physics
1995
Abstract. We present a general concept of mechanisms preseismic phenomena in the atmosphere and ionosphere. After short review observational results we conclude: 1. Upward migration fluid substrate matter (bubble) can lead to ousting hot water/gas near ground surface cause an earthquake (EQ) itself strength-weakened area; 2. Thus, time place bubble appearance could be random values, but EQ, geochemistry anomaly foreshocks (seismic, SA ULF electromagnetic ones) are casually connected; 3....
Abstract. A review is presented of the effects influencing ionosphere which are caused by acoustic emission from different sources (chemical and nuclear explosions, bolides, meteorites, earthquakes, volcanic eruptions, hurricanes, launches spacecrafts flights supersonic jets). terse statement given basic theoretical principles simplified models underlying physics propagation infrasonic pulses gravity waves in upper atmosphere. The observations "quick" response pointed out. problem magnetic...
A theory of midlatitude Ionospheric Alfvén Resonator (IAR) excitation due to random cloud‐to‐ground lightning discharges is developed. Electromagnetic wave radiated from the penetrates into ionosphere, thereby exciting shear and magnetosonic waves in F region ionosphere. The IAR arises reflection velocity gradients topside Typically, ionospheric resonance cavity accumulates energy with periods 1 s a few tenths seconds. To proceed analytically, suitably idealized plane‐stratified model medium...
Possible atmospheric effects associated with pre-seismic variations of radon concentration occasionally observed prior to earthquake occurrence are subjected theoretical study in order assess their potential effectiveness. Altitude distribution conductivity is examined as a function and aerosol concentrations. Horizontal components electric fields currents, which can arise near boundary seismo-active region, estimated. We speculated that changes radon-induced air ionization have an impact on...
Abstract —Anomalous variations in radon emissions from the soil are sometimes observed before and after strong earthquakes. In this paper, we theoretically analyze known hypothesis that these radioactive emanations surface layer of atmosphere cause vertical background current with subsequent changes electron density $${{n}_{e}}$$ lower ionosphere. For purpose, will first assess relation between emission atmospheric flowing into Then solve a model problem concerning spatial distribution...
The question of whether earthquake precursors can arise in the ionosphere is a special interest geophysics. Despite numerous encouraging reports on seismo-ionospheric effects, mechanism lithosphere-atmosphere-ionosphere coupling (LAIC) during crust destruction phase was not revealed yet. One hypothesis assumes that seismogenic current transfers an abnormal electric field from near-surface atmosphere to prior occurrence. This be caused by air ionization due enhancement radon gas emission soil...
Abstract. A new mechanism for the ionospheric Alfvén resonator (IAR) excitation at middle latitudes is considered. It shown that ionosphere wind system in this region capable of sustaining generation geomagnetic perturbations can be detected by ground magnetometers. The general IAR dispersion relation describing linear coupling shear and fast magnetosonic/compressional modes obtained. dependence eigenfrequencies damping rates on perpendicular wave number conductivity during day- nighttime...
Excitation of the middle latitude ionospheric Alfvén resonator (IAR) due to global thunderstorm activity is considered. The lightning discharges in centers are modeled terms a stochastic Poisson process. onset time and current moment amplitude supposed be random values, while shape assumed given function. Electromagnetic TM mode radiated from penetrates into ionosphere via coupling shear magnetosonic wave modes E layer ionosphere. resonance cavity can trap accumulate energy with periods one...
We have theoretically estimated ULF spectra on the ground and at ionospheric altitudes in frequency range of Alfvén resonator (IAR). The IAR has been considered to be excited either by a separate lightning stroke or stochastic global thunderstorm activity. both horizontal magnetic electric components are shown reveal spectral resonant structure upper ionosphere. excitation for different conditions compared. eigenfrequencies latitudinal inhomogeneity results smoothing shift resonance...
In this paper, we have applied a statistical approach to the problem of Schumann resonances excitation due both negative and positive cloud‐to‐ground lightning (−CG +CG, respectively). Correlation matrices power spectrum natural electromagnetic variations resulted from global activity are estimated. On basis these estimates shown that +CG can make significant contribution low‐frequency portion resonances. Despite their infrequent occurrence compared flashes, be primary importance in...
Abstract An analytical model of the vertical acoustic resonance between thermosphere and earth's surface its geomagnetic effect has been constructed. Resonance with a frequency several mHz occurs when an atmospheric wave (AW) is excited by vibrations earth or ocean surface. The derived relationships give possibility to examine dependence fundamental resonant on height reflecting layer horizontal AW number. Geomagnetic disturbances caused impact ionosphere are calculated within framework...