Results 31 to 40 of about 1,819 (186)
Sensors, 2019 A wireless seismic network can be effectively used as a tool for subsurface monitoring and imaging. By recording and analyzing ambient noise, a seismic network can image underground infrastructures and provide velocity variation information of the ...
Maria Valero +3 more
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Advanced monitoring of tailings dam performance using seismic noise and stress models
Communications Earth & Environment, 2022 Ambient seismic noise interferometry combined with a quantitative stress model can be used to determine changes in seismic wave velocity and, by extension, other geotechnical parameters which are critical to monitoring tailings dam ...
Susanne M. Ouellet +4 more
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Review of progress in passive seismic reflection exploration
地球与行星物理论评, 2023 Seismic exploration is a key method for the study of underground structures. Active seismic surveys can acquire high signal-to-noise ratio reflection data; however, the operation of active seismic surveys is complicated, and the exploration cost is high.
Xiaomin Ruan +6 more
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Seismic attenuation from recordings of ambient noise [PDF]
Geophysics, 2012 ABSTRACT 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 ...
Weemstra, Cornelis +3 more
openaire +3 more sources
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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Societal Impact of COVID-19 Crisis on the Ambient Seismic Noise in Metropolitan France
SeismicaThe COVID-19 pandemic led to restrictions on human mobility worldwide. In France, numerous phases of lockdowns and curfews were instituted in an attempt to limit the consequences of this pandemic.
Flavien Mattern +6 more
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WMSAN Python Package: From Oceanic Forcing to Synthetic Cross-correlations of Microseismic Noise
SeismicaSeismic ambient noise spectra ubiquitously show two amplitude peaks corresponding to distinct oceanic wave interaction mechanisms called primary (seismic period (T) ~ 14 s) and secondary (T ~ 7 s) microseism.
Lisa Tomasetto +6 more
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Deep Underground Science and Engineering, EarlyView.This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu +8 more
wiley +1 more source
Cross‐Entropy of Power Spectral Density Function: A Modal Identification Framework
Earthquake Engineering &Structural Dynamics, EarlyView.ABSTRACT The power spectral density (PSD) function of measured structural response contains a significant amount of information, including the modal parameters (natural frequencies, damping ratios). Output‐only system identification or modal identification technique can be used for extracting such modal parameters from the measured response or its ...
Su‐Hong Kim +3 more
wiley +1 more source