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INFLUENCE OF THE METEOROLOGICAL FACTORS ON THE LEVEL OF A MICROSEISMIC NOISE AT LONG-TERM OBSERVATIONS
1 Federal State Budgetary Educational Foundation of Higher Professional Education “Vladimir State University named after Alexander and Nikolay Stoletov”
2 Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences
2 Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences
Journal: Seismic instruments
Tome: 54
Number: 1
Year: 2018
Pages: 19-28
UDK: 550.831.015: 550.831.23: 519.654
DOI: 10.21455/si2018.1-2
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Malysheva D.A., Abramov D.V., Drobyshev M.N., Koneshov V.N. INFLUENCE OF THE METEOROLOGICAL FACTORS ON THE LEVEL OF A MICROSEISMIC NOISE AT LONG-TERM OBSERVATIONS // . 2018. Т. 54. № 1. С. 19-28. DOI: 10.21455/si2018.1-2
@article{MalyshevaINFLUENCE2018,
author = "Malysheva, D. A. and Abramov, D. V. and Drobyshev, M. N. and Koneshov, V. N.",
title = "INFLUENCE OF THE METEOROLOGICAL FACTORS ON THE LEVEL OF A MICROSEISMIC NOISE AT LONG-TERM OBSERVATIONS",
journal = "Seismic instruments",
year = 2018,
volume = "54",
number = "1",
pages = "19-28",
doi = "10.21455/si2018.1-2",
language = "English"
}
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Keywords: long-term gravimetric observations, microseismic oscillations, baric and temperature effects on the level of microseisms, estimation of the effect of microseisms on long-term gravimetric measurements
Аnnotation: To determine the degree of influence of meteorological factors on long-term gravimetric measurements, the reaction of the Earth's crust to the change in atmospheric pressure in the frequency range corresponding to the time of stacking of information of one and a series of readings of the gravimeter was evaluated. In the course of experimental work, the effect of a change in the level of microseismic oscillations due to a change in atmospheric pressure was revealed. The experimental results of long-term observations at the measuring gravimetric point confirm that the level of microseismic oscillations is much lower at elevated atmospheric pressure. With a decrease in atmospheric pressure in the spectrum of microseismic noise, the greatest increase in amplitudes occurs in the frequency range 0.05-0.5 Hz. The necessity of eliminating diurnal variations in the level of microseisms due to a change in the ambient temperature is proved.
