THE EASTERN PART OF THE PLANETARY LASER-INTERFEROMETRIC SEISMOACOUSTIC OBSERVATORY
G.I. Dolgikh1, M.A. Bolsunovskii1,2, S.S. Budrin1
a:2:{s:4:"TEXT";s:262:"V.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok,
Russia
Institute of Automation and Control Processes, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok,
Russia
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Keywords: laser strainmeter, planetary laser-interferometric observatory, seismic signal, detecting the location of the seismic signal
Abstract
The paper gives a brief description of the system of spatially spaced laser strainmeters, united by an accurate time system into a single network, installed permanently on the cape Schultz in Primorsky Krai, on the cape Svobodny at Sakhalin Island, in an underground mine near Krasnokamensk, Transbaikalia. In the complex, this system represents the eastern part of the planetary laser-interferometric seismoacoustic observatory, which additionally includes laser strainmeters, located in the western part of Russia. The paper discusses a technique for determining of the signal, recorded sequentially by these laser strainmeters. Using the results of detecting the location of the signal and the obtained data of a two-coordinate laser strainmeter allows us to restore not only the place of origin of the recorded signals, but also to determine its amplitude at each measurement point, the magnitude of the signal at the place of its generation, aperture and attenuation on the propagation paths from the source to the receivers.
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