Results 11 to 20 of about 1,946,675 (274)
SplitLab: A shear-wave splitting environment in Matlab [PDF]
Computers & Geosciences, 2008 We present a graphical user interface to facilitate the processing of teleseismic shear-wave splitting observations. In contrast to a fully automated technique, we present a manual, per-event approach that maintains user control during the sequence of processing.
Andreas Wüstefeld +3 more
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Full‐wave effects on shear wave splitting [PDF]
Geophysical Research Letters, 2014 AbstractSeismic anisotropy in the mantle plays an important role in our understanding of the Earth's internal dynamics, and shear wave splitting has always been a key observable in the investigation of seismic anisotropy. To date the interpretation of shear wave splitting in terms of anisotropy has been largely based on ray‐theoretical modeling of a ...
Yu‐Pin Lin, Li Zhao, Shu‐Huei Hung
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Teleseismic shear wave splitting measurements in noisyenvironments [PDF]
Geophysical Journal International, 1999 SUMMARY High noise levels hamper teleseismic shear wave splitting measurements, which bandpass filtering does not always help. To investigate how robust splitting measurements are to noise, we analysed a set of synthetic records with known splitting parameters and added fixed levels of noise.
Restivo, A, Helffrich, GR
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Comment on the report "Operational Earthquake Forecasting" by the International Commission on Earthquake Forecasting for Civil Protection [PDF]
Annals of Geophysics, 2012 <p>The recently published report Operational Earthquake Forecasting: State of Knowledge and Guidelines for Utilization by the International Commission on Earthquake Forecasting for Civil Protection (ICEF) presupposes that there is no method for the
Stuart Crampin
doaj +2 more sources
Shear-wave splitting in compliant rocks
The Leading Edge, 2010 Shear-wave splitting is a phenomenon that has received a lot of attention primarily because of its connection with vertically aligned cracks or fractures within reservoirs. However, in most cases the largest amount of shear-wave splitting is observed to occur in the near-surface layers where the rocks are the least consolidated, and so are least likely
Peter Cary +3 more
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Shear wave splitting measurements of North Sulawesi
, 2023 Shear wave splitting measurements of North Sulawesi, including local S phase splitting results and teleseismic S/SKS/SKKS wave splitting results.
Lingmin cao
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Splitting parameter yield (SPY): A program for semiautomatic analysis of shear-wave splitting
Computers & Geosciences, 2012 SPY is a Matlab algorithm that analyzes seismic waveforms in a semiautomatic way, providing estimates of the two observables of the anisotropy: the shear-wave splitting parameters. We chose to exploit those computational processes that require less intervention by the user, gaining objectivity and reliability as a result.
Lucia Zaccarelli +2 more
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Shear-Wave Splitting in the Alpine Region [PDF]
Geophysical Journal International, 2021 <p>To constrain seismic anisotropy under and around the Alps in Europe, we study SKS shear-wave splitting from the region densely covered by the AlpArray seismic network. We apply a technique based on measuring the splitting intensity, constraining well both the fast orientation and the splitting delay.
Gerrit Hein +120 more
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Anisotropy, focal mechanisms, and state of stress in an oilfield : passive seismic monitoring in Oman [PDF]
, 2005 Knowledge of the spatial characteristics of stress and fractures in reservoirs is important for optimising production and injection processes. Serni-permanent passive microseismic monitoring is being conducted in the Yibal field, Oman, to better ...
Al-Anboori, Abdullah Said
core +7 more sources
Oil & Gas Science and Technology, 2006 Arguably, shear-wave splitting displaying azimuthal anisotropy has not lived up to its initial promise of opening a new window for understanding cracks and stress in the crust.
Crampin S.
doaj +2 more sources