naa a22 4500 510765157 CHVBK 20180411083154.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1134/S0001437013020100 doi (NATIONALLICENCE)springer-10.1134/S0001437013020100 Nature of "transparency windows” in the broadband spectrum of seafloor microseisms [Elektronische Daten] [D. Levchenko, V. Levchenko] The peculiarities of the microseisms spectra shape when recording on the ocean floor in the frequency band of 0.003-20 Hz are examined. The origin of the stable minima in the microseisms spectrum ("transparency windows”) at frequencies of about 0.02-0.1 Hz and 5-15 Hz is analyzed. In these frequency bands, weak earthquake signals are recorded by bottom instruments. The origin of the low-frequency "transparency windows” can be explained by the conditions of the microseisms propagation in the oceanic waveguide (between the bottom and the water's surface) in the abyssal plain zones. The results of the full-waveform numerical simulation of the seismoacoustic waves propagation in the oceanic environment and on the ocean-continent border are presented, and the experimental data as well. The peculiarities of the microseisms spectra in the band of high-frequency "transparency windows” can be caused by the constructive resonance in the water-saturated layer of bottom sediments. The theoretical foundation and experimental results are given. Pleiades Publishing, Ltd., 2013 Levchenko D. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia aut Levchenko V. Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, Moscow, Russia aut Oceanology SP MAIK Nauka/Interperiodica 53/3(2013-05-01), 294-307 0001-4370 53:3<294 2013 53 11491 https://doi.org/10.1134/S0001437013020100 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0001437013020100 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Levchenko D. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia aut NATIONALLICENCE 700 1- Levchenko V. Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, Moscow, Russia aut NATIONALLICENCE 773 0- Oceanology SP MAIK Nauka/Interperiodica 53/3(2013-05-01), 294-307 0001-4370 53:3<294 2013 53 11491 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer