Results 1 to 10 of about 91 (76)
4D Physics‐Based Pore Pressure Monitoring Using Passive Image Interferometry
Geophysical Research Letters, 2023 This study introduces a technique for four‐dimensional pore pressure monitoring using passive image interferometry. Surface‐wave velocity changes as a function of frequency are directly linked to depth variations of pore pressure changes through ...
Eldert Fokker +3 more
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Velocity changes after the 2021 MS 6.4 Yangbi earthquake based on passive image interferometry
Frontiers in Earth Science, 2023 An MS 6.4 earthquake occurred in Yangbi, Yunan Province, China, on 21 May 2021. The epicenter was on the blind branch fault in the west of the Weixi–Qiaohou–Weishan fault, but no surface rupture was obvious.
Cong Zhou +5 more
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Fault zone monitoring with passive image interferometry [PDF]
Geophysical Journal International, 2007 SUMMARY The technique of passive image interferometry applies interferometric methods to correlation functions of seismic noise to monitor small temporal variations of the Earth interior. We computed the autocorrelation function of seismic noise recorded at a single seismometer located in the vicinity of the source region of the Mw = 6.6 Mid-Niigata ...
Christoph Sens-Schönfelder
exaly +2 more sources
Passive image interferometry for monitoring crustal changes with ambient seismic noise
Comptes Rendus - Geoscience, 2011 Abstract The technique to retrieve Green’s functions by cross-correlation of seismic noise that is now often referred to as seismic interferometry opened the way to a completely new type of seismological observation – the continuous monitoring of changes in the subsurface medium.
Christoph Sens-Schönfelder
exaly +4 more sources
Comparison of four techniques for estimating temporal change of seismic velocity with passive image interferometry [PDF]
Earthquake Science, 2010 Passive image interferometry (PII) is becoming a powerful tool for detecting the temporal variations in the Earth’s structure, which applies coda wave interferometry to the waveforms from the cross-correlation of seismic ambient noise. There are four techniques for estimating temporal change of seismic velocity with PII: moving-window cross-correlation
Zhikun Liu, Jinli Huang
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Comprehensive observation and modeling of earthquake and temperature‐related seismic velocity changes in northern Chile with passive image interferometry [PDF]
Journal of Geophysical Research: Solid Earth, 2014 AbstractWe report on earthquake and temperature‐related velocity changes in high‐frequency autocorrelations of ambient noise data from seismic stations of the Integrated Plate Boundary Observatory Chile project in northern Chile. Daily autocorrelation functions are analyzed over a period of 5 years with passive image interferometry.
Christoph Sens-Schönfelder
exaly +4 more sources
Geophysical Research Letters, 2006 We propose passive image interferometry as a technique for seismology that allows to continuously monitor small temporal changes of seismic velocities in the subsurface. The technique is independent of sources in the classical sense and requires just one or two permanent seismic stations. We retrieve the Green's functions that we use for interferometry
Christoph Sens-Schönfelder
exaly +4 more sources
Scientific ReportsThis paper presents the findings of a comprehensive non-invasive monitoring survey of the reservoir in the Beppu hot spring area, which has the largest discharge and the highest average temperature among hot springs in Japan.
Yohei Morifuji +5 more
doaj +2 more sources
Journal of Volcanology and Geothermal Research, 2014 AbstractActivity of Piton de la Fournaise (PdF) volcano in La Réunion Island modifies the seismic velocities within the edifice. Using the 2010 and 2011 data from a network of 21 seismic stations in the vicinity of PdF, changes of seismic velocities are investigated using passive image interferometry, i.e.
Aline Peltier +1 more
exaly +5 more sources
Interpretation, 2016 Abstract We have developed an application of passive seismic interferometry (SI) using P-wave coda of local earthquakes for the purpose of crustal-scale reflection imaging. We processed the reflection gathers retrieved from SI following a standard seismic processing in exploration seismology.
Deyan Draganov +2 more
exaly +5 more sources