Results 41 to 50 of about 27,130 (200)
Sonar research conducted during the period 1 October - 31 December 1961 [PDF]
, 1962 Research at sea during this three month period, supported by Contract NObsr-72521, was carried out mostly during the latter portion of the CHAIN Cruise 21 to the eastern Mediterranean.
Woods Hole Oceanographic Institution, /
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Seismic attenuation from recordings of ambient noise [PDF]
GEOPHYSICS, 2013 We applied seismic interferometry to data from an ocean-bottom survey offshore Norway and found that ambient seismic noise can be used to constrain subsurface attenuation on a reservoir scale. By crosscorrelating only a few days of recordings by broadband ocean bottom seismometers, we were able to retrieve empirical Green’s functions associated with ...
Weemstra, Cornelis +3 more
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Frequency‐Dependent Moment Tensors of Induced Microearthquakes [PDF]
, 2019 Analysis of 984 induced microearthquakes from The Geysers geothermal reservoir in California reveals that the retrieved moment tensors depend on the frequency band of the inverted waveforms. The observed dependence is more significant for the percentages
Beall J. +8 more
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Reflection images from ambient seismic noise
GEOPHYSICS, 2009 One application of seismic interferometry is to retrieve the impulse response (Green’s function) from crosscorrelation of ambient seismic noise. Various researchers show results for retrieving the surface-wave part of the Green’s function. However, reflection retrieval has proven more challenging. We crosscorrelate ambient seismic noise, recorded along
Draganov, D.S. (author) +4 more
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Shear wave structure of a transect of the Los Angeles basin from multimode surface waves and H/V spectral ratio analysis [PDF]
, 2020 We use broad-band stations of the ‘Los Angeles Syncline Seismic Interferometry Experiment’ (LASSIE) to perform a joint inversion of the Horizontal to Vertical spectral ratios (H/V) and multimode dispersion curves (phase and group velocity) for both ...
Beroza, Gregory C. +3 more
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Spatial and temporal influence of sea level on inland stress based on seismic velocity monitoring
Earth, Planets and Space, 2022 Earth’s crust responds to perturbations from various environmental factors. To evaluate this response, seismic velocity changes offer an indirect diagnostic, especially where velocity can be monitored on an ongoing basis from ambient seismic noise ...
Rezkia Dewi Andajani +3 more
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ISPRS International Journal of Geo-Information, 2023 Analyses of climate change, due to its impact not only on the weather and the environment but also on human health and life, are one of the most important study activities made in recent years.
Paolo Dabove +2 more
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Is ambient noise tomography across ocean basins possible? [PDF]
, 2006 International audienceBased on year-long cross-correlations of broad-band seismic records obtained at sixty-six stations within or adjacent to the Pacific Basin, we show that broad-band ambient noise is observed to propagate coherently between island ...
H. Ritzwoller, Michael +2 more
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Expert-based development of a standard in CO2 sequestration monitoring technology [PDF]
, 2014 Bureau of Economic ...
Hovorka, S. D. +6 more
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Seismic exploration‐scale velocities and structure from ambient seismic noise (>1 Hz) [PDF]
Journal of Geophysical Research: Solid Earth, 2013 The successful surface waves retrieval in solid‐Earth seismology using long‐time correlations and subsequent tomographic images of the crust have sparked interest in extraction of subsurface information from noise in the exploration seismology. Subsurface information in exploration seismology is usually derived from body‐wave reflections > 1 Hz ...
Draganov, D.S. (author) +4 more
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