Physics
Scientific paper
Jul 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994pepi...84..179r&link_type=abstract
Physics of the Earth and Planetary Interiors, Volume 84, Issue 1-4, p. 179-191.
Physics
20
Scientific paper
A method is presented for the measurement of attenuation of long-period Rayleigh waves which minimizes two effects: that of biases owing to uncertainties in the source moment tensor and that of focusing owing to propagation in a laterally heterogeneous elastic Earth. In this manner, by measuring attenuation over minor arcs, odd terms of lateral heterogeneity in Q can be resolved. Global average Q estimates are in good agreement with the Preliminary Reference Earth Model (PREM) in the period range 180-285 s. At periods shorter than 180 s, our estimates of Q are lower than predicted by PREM. Maps of lateral variations in Q-1 show a general correspondence of high Q to high shear velocity and low Q to low shear velocity. In particular, the shift to the west, at increasing period, of the locus of the minimum in the Pacific Ocean is also observed in the Q-1 maps.
No associations
LandOfFree
On the measurement of anelastic attenuation using amplitudes of low-frequency surface waves does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with On the measurement of anelastic attenuation using amplitudes of low-frequency surface waves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the measurement of anelastic attenuation using amplitudes of low-frequency surface waves will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-823560