Abstract
Abstract Effects of the scattering and intrinsic Q measured for direct waves on the decay of seismic coda with time and the level of the coda excitation were investigated by laboratory experiments. Seismograms with long codas were produced using an ultrasonic technique and sufficiently large 2-D models of scattering media. The results are: (1) the level of coda excitation is high when scattering attenuation is large, whereas it is low when scattering attenuation is small; (2) the observed coda decay depends only on the intrinsic Q of media models as predicted by the energy transfer theory of Shang and Gao; and (3) the scattering Q−1 value has a peak around kd = 2–3 (k is the wave number and d is the scatterer size) and decreases steeply on both sides of the peak.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
