Fig. 11

A demonstration of how the parameters, attenuation (Q) and velocity-density variation scaling ratio (v), affect the P-wave coda synthetics. The scattering model is an exponential random medium with thickness of 130 km, correlation length of 0.8 km and RMS velocity perturbation of 5%. a Synthetics for models with Q = 100 (dashed red lines) and Q = 800 (blue lines) in the mantle, respectively. b Synthetics for models with v = 0 (dashed red lines) and v = 0.8 (blue lines), respectively