Results 21 to 30 of about 605,537 (174)

Permanent, seasonal, and episodic seismic sources around Vatnajökull, Iceland from the analysis of correlograms

open access: yesVolcanica, 2021
In this study, we locate and characterise the main seismic noise sources in the region of the Vatnajökull icecap (Iceland). Vatnajökull is the largest Icelandic icecap, covering several active volcanoes.
Sylvain Nowé   +4 more
doaj   +1 more source

2D body-wave seismic interferometry as a tool for reconnaissance studies and optimization of passive reflection seismic surveys in hardrock environments

open access: yes, 2021
Despite the unrivalled spatial resolution and depth penetration of active-source seismic methods used for mineral exploration in hardrock environment, economic and environmental restrictions (e.g., source permitting) may preclude its full-scale ...
M. Chamarczuk   +2 more
semanticscholar   +1 more source

A near-surface seismic scattered wave separation method

open access: yesPetroleum Exploration and Development, 2014
Considering that near-surface scattered waves could not be suppressed by conventional denoise method, this paper analyzes the characteristics of scattered waves and achieves the near-surface scattered wave separation by the seismic interferometry theory.
Jixiang XU, B F McLean, Xuejuan SONG
doaj   +1 more source

Spatiotemporal evaluation of Rayleigh surface wave estimated from roadside dark fiber DAS array and traffic noise

open access: yesSeismica, 2023
Seismic imaging and monitoring of the near-surface structure are crucial for the sustainable development of urban areas. However, standard seismic surveys based on cabled or autonomous geophone arrays are expensive and hard to adapt to noisy ...
Rafał Czarny, Tieyuan Zhu, Junzhu Shen
doaj   +1 more source

Physics-Based Relationship for Pore Pressure and Vertical Stress Monitoring Using Seismic Velocity Variations

open access: yesRemote Sensing, 2021
Previous studies examining the relationship between the groundwater table and seismic velocities have been guided by empirical relationships only. Here, we develop a physics-based model relating fluctuations in groundwater table and pore pressure with ...
Eldert Fokker   +3 more
doaj   +1 more source

Passive Seismic Structure Imaging of a Coal Mine by Ambient Noise Seismic Interferometry on a Dense Array

open access: yesActa Geologica Sinica (English), 2021
image subsurface structures for resource exploration, including oil, gas and coal. Although it can provide highresolution subsurface structures, due to some economic and environmental restrictions, it is not suitable in some cases.
Ning Gu   +4 more
semanticscholar   +1 more source

Review of Seismic Interferometry

open access: yesChigaku Zasshi (Jounal of Geography), 2008
We review seismic interferometry with an example of a numerical simulation. A cross-correlation of two seismic records at different receivers yields a virtual source record that corresponds to the seismic response observed at one receiver due to the source at another receiver location.
SHIRAISHI, Kazuya   +2 more
openaire   +2 more sources

Toward Using Seismic Interferometry to Quantify Landscape Mechanical Variations after Earthquakes

open access: yes, 2021
In mountainous terrain, large earthquakes often cause widespread coseismic landsliding as well as hydrological and hydrogeological disturbances. A subsequent transient phase with high landslide rates has also been reported for several earthquakes ...
O. Marc   +7 more
semanticscholar   +1 more source

Seismic Velocity Response to Atmospheric Pressure Using Time-Lapse Passive Seismic Interferometry

open access: yesBulletin of The Seismological Society of America (BSSA), 2021
Seismic velocities in the shallow crust down to a few kilometers depth show a remarkable sensitivity to stress perturbations due to the presence of compliant pores, cracks, fractures, and faults.
C. Gradon   +8 more
semanticscholar   +1 more source

Moho topography beneath the European Eastern Alps by global-phase seismic interferometry

open access: yes, 2021
. In this work we present the application of the global-phase seismic interferometry (GloPSI) technique to a dataset recorded across the Eastern Alps with the EASI (Eastern Alpine Seismic Investigation) temporary seismic network. GloPSI aims at rendering
I. Bianchi   +3 more
semanticscholar   +1 more source

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