Results 41 to 50 of about 1,726,373 (224)

Seismic attenuation from recordings of ambient noise [PDF]

open access: yesGeophysics, 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

Towards the Monitoring of Underground Caves Using Geomatics and Geophysical Techniques: 3D Analyses and Seismic Response

open access: yesISPRS 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
doaj   +1 more source

Spatial and temporal influence of sea level on inland stress based on seismic velocity monitoring

open access: yesEarth, 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
doaj   +1 more source

The Search of Diffusive Properties in Ambient Seismic Noise

open access: yesBulletin of the Seismological Society of America, 2021
ABSTRACTAmbient seismic noise (ASN) is becoming of interest for geophysical exploration and engineering seismology, because it is possible to exploit its potential for imaging. Theory asserts that the Green’s function can be retrieved from correlations within a diffuse field.
Piña-Flores, José   +4 more
openaire   +2 more sources

Characterization of the temporal and spatial distribution of ambient seismic noise in an urban site

open access: yes, 2023
reservedambient seismic noise characterization is an advanced look at the subsurface and its importance for many disciplines such as oil exploration, geology, earthquake engineering, hydrology and structural health monitoring made it the focus of many ...
ELGASHTI, MOHAMED AMER ALI
core  

Societal Impact of COVID-19 Crisis on the Ambient Seismic Noise in Metropolitan France

open access: yesSeismica
The 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
doaj   +1 more source

WMSAN Python Package: From Oceanic Forcing to Synthetic Cross-correlations of Microseismic Noise

open access: yesSeismica
Seismic 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
doaj   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

open access: yesDeep 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

Higher mode surface wave interferometry. Geologica Ultraiectina (336) [PDF]

open access: yes, 2011
In this thesis, we investigate the feasability of using higher modes in seismic interferometry. This is done by a theoretical and computation analysis of the approximations involved, development of a method of stacking noise traces, and analysis of a ...
Kimman, W.P.   +2 more
core   +1 more source

Datasets of the seismic ambient noise data classification scheme

open access: yes, 2022
With our proposed seismic ambient noise data classification scheme, the surface waves and body waves dominated noise slices are well classified respectively.
Jin, Zhong-Yuan
core   +2 more sources

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