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Engineering Physics Annotation << Back
THE DEVELOPMENT OF THE TOMOGRAPHY TECHNOLOGY OF THE EARTH’S CRUST OF THE SHELF AND THE DEEP SEA ON THE BASIS OF THE USE OF COASTAL LASER STRAINMETERS AND BROADBAND LOW-FREQUENCY HYDROACOUSTIC RADIATORS |
G.I. DOLGIKH, S.S. BUDRIN, S.G. DOLGIKH, V.V. OVCHARENKO, A.A. PIVOVAROV, A.A. PLOTNIKOV, A.N. SAMCHENKO, V.A. CHUPIN, V.A. SHVETS, A.N. SHVIREV, S.V. YAKOVENKO, I.O. YAROSHCHUK,
The stages of creation of the tomography technology of the earth's crust of the shelf and the deep sea on the basis of the use of coastal laser deformographs and broadband lowfrequency hydroacoustic radiators are considered. The technology is designed to study the structure and composition of the marine crust of shelf areas, including those covered with ice without its destruction. In the course of numerous experimental studies carried out in different seasons and in different water areas, its high efficiency in the construction of a model of the marine crust of the studied polygons, including the use of lowfrequency hydroacoustic radiators towed type. It is shown that the use of a low-frequency hydroacoustic radiator with a central frequency of 22 Hz makes it possible to study the structure and composition of the marine crust at greater depths of the shelf area of the sea than the use of a low-frequency hydroacoustic radiator with a central frequency of 33 Hz.
Key words: tomography, laser strainmeter, hydroacoustic radiator, phase-shift signal, m-sequence, sea-crust, earth’s crust model.
DOI: 10.25791/infizik.04.2019.612
Contacts: E-mail: dolgikh@poi.dvo.ru
Pp. 38-61. |
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