Open AccessSpectra of ocean‐bottom seismic noise in the 0.01–10 Hz range
Author(s) -
Dozorov Thomas A.,
Soloviev Sergei L.
Publication year - 1991
Publication title -
geophysical journal international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0956-540X
DOI - 10.1111/j.1365-246x.1991.tb04605.x
Subject(s) - geology , microseism , seismology , ridge , storm , seismic noise , range (aeronautics) , upwelling , ocean bottom , geophysics , oceanography , paleontology , materials science , composite material
Summary In 1988, short‐term (duration 18 hr each) ocean‐bottom seismic noise recordings were made in the frequency range of 0.01‐10 Hz at the depth of 900‐1400 m in the Atlantic ocean. There were two study areas: in the Canary upwelling and on the Reikjanes ridge. The spectral curves obtained for these two areas show the existence of a minimum in the frequency range of 0.05‐0.10 Hz (i.e. in the period range of 10‐20 s) together with a maximum reflecting the domain of storm microseisms (0.1–1 Hz). We recommend the use of this minimum for regular recording of strong remote earthquakes and, especially, for surface wave dispersion studies to obtain velocity sections of the oceanic crust and upper mantle.