Frequency and Travel-Distance Characteristics of Scattering Attenuation Observed from Seismic Primaries

C-28 FREQUENCY AND TRAVEL-DISTANCE CHARACTERISTICS OF SCATTERING ATTENUATION OBSERVED FROM SEISMIC PRIMARIES T.M. MÜLLER C.M.A. SICK and S.A. SHAPIRO FreieUniversität Berlin FachrichtungGeophysik Malteserstr. 74-100 12249Berlin Germany Summary We further develop and numerically verify a recently proposed scattering attenuation model which predicts the frequency- and traveldistance-dependent attenuation of seismic primaries propagating through weakly inhomogeneous solids. Such attenuation estimates are useful for seismic modeling and petrophysical interpretations of rocks. To test the theory we perform numerical simulations of seismic wave propagation in random media using a finite-difference solution of the elastodynamic wave equation. From the synthetic seismograms we determine the quality factor