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1.
Besedina A. N. Kishkina S. B. Kocharyan G. G. 《Izvestiya Physics of the Solid Earth》2021,57(3):348-365
Izvestiya, Physics of the Solid Earth - Abstract—Despite extensive research, it is still unclear, to what extent studying the parameters of weak seismicity facilitates the interpretation of... 相似文献
2.
N. V. Kabychenko G. G. Kocharyan D. V. Pavlov A. N. Besedina 《Seismic Instruments》2012,48(3):214-217
A procedure for eliciting displacements in tidal waves from seismograms of broadband velocimeters like STS-2 and KSESH-R and the evaluation conversion of these displacements into vertical or volumetric deformation is proposed. 相似文献
3.
Redistribution of dust particles in the ionosphere as a result of vortical motions is discussed. The following possibilities
are studied: capture and evolution of dust particles in acoustic-gravitational (AG) vortices, formation of dust vortices as
a result of involving a great number of dust particles into vortex motions, and formation of vertical dust flows (streamers).
It is shown that excitation of AG-vortices at altitudes of 110–130 km as a result of development of AG-wave instability, associated
with non-zero balance of heat fluxes, owing to solar radiation, water vapors condensation, infrared emission of the atmosphere,
and thermal conductivity, leads to a substantial transportation of dust particles and their mixing at altitudes of 110–120
km. Layers of dust particles in the ionosphere with a thickness of about a kilometer, forming at altitudes less than 120 km,
distribute within the region of existence of AG-vortical structures. As a result, at altitudes of 110–120 km, dust vortices
can appear, and transportation of particles up to altitudes of 130 km becomes possible. One of the ways of transportation
of dust particles in the ionosphere is vertical flows (streamers), which are generated by dust vortices as a result of development
of parametric instability. 相似文献
4.
Kocharyan G. G. Besedina A. N. Kishkina S. B. Pavlov D. V. Sharafiev Z. Z. Kamenev P. A. 《Izvestiya Physics of the Solid Earth》2021,57(5):614-626
Izvestiya, Physics of the Solid Earth - Abstract—We present the results of laboratory studies of slope failure criteria by dynamic impulse loading in the range of peak ground velocities (PGV)... 相似文献
5.
N.?V.?KabychenkoEmail author A.?N.?Besedina S.?G.?Volosov S.?A.?Korolev G.?G.?Kocharyan 《Seismic Instruments》2018,54(1):28-42
This paper reviews the methods of correcting the frequency response of short-period seismometers and geophones, i.e., the multiplication of the transfer sensor functions by the transfer function of the secondorder correction filter and the provision of a considerable attenuation in the oscillating system (h = 5–10) followed by correcting the frequency response with the first-order filter. The correction device circuit developed by the authors for expanding the frequency range of the GS-20DX geophone has been described. The proposed method has been proved to be effective according to the laboratory tests of the geophone with the frequency response correction according to this circuit. 相似文献
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7.
Gorbunova E. M. Besedina A. N. Kabychenko N. V. Batukhtin I. V. Petukhova S. M. 《Izvestiya Physics of the Solid Earth》2021,57(5):644-658
Izvestiya, Physics of the Solid Earth - Abstract—Deformation regimes of water-saturated reservoirs under dynamic impact are studied using groundwater-level monitoring by precision... 相似文献
8.
The paper has assessed the noise of the measuring channel, which includes a seismic receiver, preliminary amplifier, and correction
filter (this filter broadens the frequency characteristics of the seismic receiver into the low frequencies range). The correction,
mainly from the preliminary amplifier, contributes an additional noise into the measuring channel, therefore application of
corrected seismometers and geophones is restricted by the class of signals that provide a signal-to-noise ratio of no less
than 3–5. Such signals are seismic waves from regional earthquakes and industrial blasting. 相似文献
9.
The article proves the application of short-period sensors with extended frequency response as a reasonable alternative to broadband seismometers. We assessed uncertainties between magnitudes determined by short-period and broadband sensor data for earthquakes with M > 6 recorded at the Mikhnevo geophysical observatory in 2014. Data analysis consisted of body wave magnitude and surface wave magnitude estimates by standard seismological methods. Magnitude errors corresponded to the magnitude uncertainties in seismological catalogs. 相似文献
10.
Besedina A. N. Kishkina S. B. Kocharyan G. G. Ryakhovskiy I. A. 《Izvestiya Physics of the Solid Earth》2020,56(2):151-161
Izvestiya, Physics of the Solid Earth - Abstract—In this work, we study the parameters of microseismic noise in the vicinity of the Chilean subduction zone in order to detect oscillations of... 相似文献