Results 41 to 50 of about 1,427 (180)
Origin of coda waves: earthquake source resonance
, 2022 Abstract Coda in local earthquake exhibits resonance-like wave behaviour where the coda emerges as long-duration small-amplitude vibration with selective frequency, slow temporal decay, and uniform spatial energy distribution around the earthquake source. Coda is thought to be the incoherent waves scattered from random small-scale heterogeneity
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Estimation of Coda Q Wave Attenuation Factors for Northern Iraq
Iraqi Geological Journal, 2023 The coda wave decay method was used to estimate the quality factor from the coda wave amplitude decay rate for the broadband seismic stations in northern Iraq using a single back-scattering model.
Fatima Khagoory, Ali Rahim
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Геодинамика и тектонофизика, 2022 Evaluation of seismic wave attenuation parameters (Q-factor and frequency parameter) in the lithosphere of the Tien Shan and the Baikal rift was carried out using coda waves of regional earthquakes. Comparison of obtained quality factor values shows that
P. A. Predein, Ts. A. Tubanov
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Accurate time-frequency-wavenumber analysis to study coda waves [PDF]
Geophysical Journal International, 2004 SUMMARY An accurate method is developed to characterize the seismic coda phases recorded by smallaperture arrays. The coda is modelled as a superposition of several interfering wavelets identified by their arrival time, frequency content, backazimuth and apparent velocity of propagation.
Schissele, E. +3 more
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Attenuation of coda waves in southern Tibet
Geophysical Research Letters, 1996 The alternation characteristics of the crust in the southernmost Tibetan plateau are determined from analysis of S‐wave coda recorded at a temporary broadband station deployed during the 1994 INDEPTH‐II experiment. A method for determiningQcis developed which utilizes the coda spectrogram observed at a single station.
C. C. Reese, J. F. Ni
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Near Surface Geophysics, EarlyView.Abstract The United Kingdom's shallow aquifers offer significant but underdeveloped geothermal energy resource. Seismic methods can help address this by improving the understanding of aquifer heterogeneity and potentially allowing long‐term monitoring of thermal plumes.
Adam D. Booth +10 more
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Structural Concrete, EarlyView.Abstract During their life cycle, prestressed concrete bridges are prone to wire breaks of their tendons due to fatigue or stress corrosion cracking. However, not all structures show visible cracking on the surface, which would provide timely warning of otherwise invisible damage. Brittle failure may occur.
Noah Sträter +3 more
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Journal of the Royal Anthropological Institute, EarlyView.Based on ethnographic research at Rūm Orthodox Christian monasteries in Lebanon, the article studies scenes of Islam at the monastery as they intersect with anxious public debates on, and anthropological theorizations of, sectarianism and ‘Muslim–Christian’ relations in the Mashriq.
Aaron F. Eldridge
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Contemporary Accounting Research, EarlyView.RÉSUMÉ L'étude publiée par Ball et Brown en 1968 (ci‐après « BB68 ») est principalement reconnue pour son affirmation selon laquelle la comptabilité de l'époque était utile pour les investisseurs, s'inscrivant alors en contradiction avec la littérature comptable normative faisant office d'autorité. Or, une telle affirmation n'allait pas de soi.
Pier‐Luc Lajoie, Yves Gendron
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Distant Storms Can Affect Seismic Noise Crustal Monitoring
Geophysical Research LettersUsing seismic noise interferometry to monitor the Earth's interior relies on continuous seismic wavefields produced by stable, invariant sources. In numerous applications, this condition is relaxed, arguing that secondary scattering effects render the ...
Jinwu Li +4 more
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