Affiliation:
1. NORSAR P. O. Box 51 N-2007 Kjeller, Norway
2. Seismological Observatory University of Bergen N-5000 Bergen, Norway
Abstract
abstract
Power spectral analysis in frequency-wavenumber space and coherence studies in lag space have shown that the noise recorded by the short period Øyer subarray at NORSAR is critically dependent on the weather situation in the North Atlantic Ocean. In addition to the low-frequency noise from the west, there is observed 2-sec microseisms from the Baltic Sea. Because of the nonisotropic noise, the coherence is usually strongly azimuthal dependent, being represented in lag space by ellipses. Large time variations of the coherence are demonstrated.
Publisher
Seismological Society of America (SSA)
Subject
Geochemistry and Petrology,Geophysics
Cited by
4 articles.
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2. Analysis of Microseismic Noise at LASA, NORSAR and ALPA†;Geophysical Journal of the Royal Astronomical Society;2009-09-15
3. Deep ocean seismology;Eos, Transactions American Geophysical Union;1984
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