Besedina, A. N. Kabychenko, N. V. Volosov, S. G.
Published in
Seismic Instruments
AbstractA new method for estimating the self-noise of the measuring channel of a seismometer is proposed, taking into account the linear relationship between the signal and noise. The method extracts noise using records of two identical measuring channels on the example of the SM-3KV short-period seismometer with an operating frequency range of 0.5...
Deshcherevskii, A. V. Zhuravlev, V. I. Lukk, A. A. Sidorin, A. Ya.
Published in
Seismic Instruments
AbstractWe studied the time series of the total number of weakest earthquakes (microearthquakes) with magnitudes M ≤ 2 recorded by 15 seismic stations of the Garm test area in 1975–1985, as well as the microseismic noise level at different frequencies of about 0.005–50 Hz recorded by the Garm station of the IRIS observation network for the periods ...
Besedina, A. N. Kabychenko, N. V. Volosov, S. G. Korolev, S. A.
Published in
Seismic Instruments
AbstractThe application of special sensor correction methods may allow the use of short-period seismometers with an extended frequency range in the absence of broadband sensors to solve a wide range of problems associated with recording low-frequency signals. The paper considers an instrumental correction circuit that uses integrating elements to b...
j., elisa
Tropical Cyclones (TC) represent the most destructive natural disaster affecting the islands in the South-West Indian Ocean (SWIO) each year. Monitoring ocean activity is therefore of primary importance to secure lands, infrastructures and peoples, but the little number of oceanographic instruments makes it challenging, particularly in real time. L...
Malovichko, A. A. Gabsatarova, I. P. Dyagilev, R. A. Mekhryushev, D. Yu. Zvereva, A. S.
Published in
Seismic Instruments
AbstractThe power spectra of microseismic noise were investigated at 20 stations in the western part of the North Caucasus. The seismic stations are located on the eastern coast of the Black Sea and adjacent territories, covering various tectonic structures from the Greater Caucasus to the Scythian Platform. The night and day levels of microseisms ...
Abramov, D. V. Bebnev, A. S. Bychkov, S. G. Gorozhantsev, S. V. German, V. I. Drobyshev, M. N. Koneshov, V. N. Krasilov, S. A. Ovcharenko, A. V. Yushkin, V. D.
...
Published in
Izvestiya, Physics of the Solid Earth
The phenomenon of synchronous episodic increase in gravimetric noise at the stations distant by thousands of kilometers from each other is described. The comparison with microseismic noise suggests inertial rather than gravimetric origin of the recorded anomalies. The duration of anomalous enhancement in microvibrations ranges from a few hours to a...
Besedina, A. N. Kishkina, S. B. Kocharyan, G. G. Ryakhovskiy, I. A.
Published in
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 a block–fault system, similar to those identified by processing the results of the previous laboratory experiment. The analysis is based on the data recorded by the broadband seismic stations of the ...
Davy, Céline
Les données sismologiques enregistrées sur les îles océaniques offrent l'opportunité d'analyser de façon qualitative et quantitative la houle via sa signature dans le "bruit" microsismique. Nous avons tout d'abord analysé dans ce travail les sources de bruit « secondaires », qui sont générées par l’interaction entre des vagues de même période au se...
Schimmel, M. Stutzmann, E. Ardhuin, F. Gallart, J.
We quantify, analyze, and characterize the frequency-dependent microseismic noise recorded by worldwide distributed seismic stations. Microseismic noise is generated through the interaction of ocean waves. It is the strongest ambient noise, and it is observed everywhere on Earth. We introduce a new approach which permits us to detect polarized sign...
