Results 11 to 20 of about 1,554 (166)
4D Physics‐Based Pore Pressure Monitoring Using Passive Image Interferometry [PDF]
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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Near-surface structure of the Sodankylä area in Finland, obtained by passive seismic interferometry [PDF]
Solid Earth, 2021 Controlled-source seismic exploration surveys are not always possible in nature-protected areas. As an alternative, the application of passive seismic techniques in such areas can be proposed.
N. Afonin +6 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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Passive seismic imaging of the Lower Palaeozoic in the Sudret area of Gotland, Sweden [PDF]
Solid EarthPassive seismic data were acquired together with active seismic data along a 2.8 km long profile in the Sudret area of Gotland, Sweden, as part of a feasibility study for storage of CO2 below the Baltic Sea. Seismic interferometry using cross-correlation
Z. Wang +5 more
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The use of passive seismic interferometry for the monitoring of subsurface fluids – from shallow groundwater to native or storage gas reservoirs [PDF]
E3S Web of ConferencesPassive (ambient noise) seismic interferometry provides multiple ways to gather information about the subsurface seismic properties using recordings of the seismic ambient noise signal.
Kremer Thomas +6 more
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An imaging interferometry capability for the EISCAT Svalbard Radar [PDF]
Annales Geophysicae, 2005 Interferometric imaging (aperture synthesis imaging) is a technique used by radio astronomers to achieve angular resolution that far surpasses what is possible with a single large aperture.
T. Grydeland +4 more
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Geophysical Journal International, 2022 SUMMARY Passive reflection seismic interferometry (PRSI) facilitates imaging the subsurface structure using passive sources but according to the general theory, the target needs to be illuminated equally from all directions to obtain a kinematically correct result.
Ruth A Beckel, Christopher Juhlin
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Monitoring a volcano with passive image interferometry
The Journal of the Acoustical Society of America, 2007 Ambient seismic noise has been used successfully as a source of information for structural investigations. Ballistic surface as well as body waves were reconstructed by correlation of noise and used in tomographic studies. In these cases it is of course assumed that the medium under study is stationary, i.e., that the reconstructed Green’s function ...
Christoph Sens-Schönfelder +1 more
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VIEW, EarlyView.Mitochrial transplantation is a promising therapy to restore energy in damaged cells, but it lacks fast and reliable methods to assess mitochondrial quality before use. In this study, we used a label‐free imaging technique called interferometric light microscopy to rapidly measure the size and concentration of isolated mitochondria.
Mozafari S +5 more
europepmc +2 more sources
Remote 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