Shear-Wave Splitting Analysis Using Optimization Algorithms [PDF]
Lithosphere, 2022 Shear-wave splitting (SWS) analysis is used to predict fractures in subsurface media. Specifically, two parameters relevant to SWS analysis (the azimuth of the fast shear wave and the time delay between the fast and slow shear waves) are used to quantify
Zhengtao He, Yuyong Yang, Huailai Zhou
doaj +2 more sources
New shear wave splitting measurements using broadband seismic data recorded by the BX seismological network in Botswana. [PDF]
Data Brief, 2023 New measurements shear-wave splitting (SWS) were determined using a teleseismic dataset from 21 broadband seismic stations belonging to the GSN-BX network in Botswana archived at IRIS-DMC.
Moidaki M.
europepmc +2 more sources
SplitLab: A shear-wave splitting environment in Matlab [PDF]
Computers and 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.
Götz Bokelmann +2 more
exaly +5 more sources
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.
George R. Helffrich, Andrea Restivo
exaly +4 more sources
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
Robust Phase Association and Simultaneous Arrival Picking for Downhole Microseismic Data Using Constrained Dynamic Time Warping. [PDF]
Sensors (Basel)Accurate phase association and arrival time picking are pivotal for reliable microseismic event location and source characterization. However, the complexity of downhole microseismic wavefields, arising from heterogeneous subsurface structures, variable ...
Wang T, Li L, Wen S, Lv Y, Yu Z, He C.
europepmc +2 more sources
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 ...
Shu-Huei Hung, Yu-Pin Lin
exaly +2 more sources
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
openaire +3 more sources
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
openaire +4 more sources
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