FIG. 1.

Spatial distribution of the magnitude of the local roughness reflectivity function, Eq. (7), in linear units (thick line, magnified 10 times) at f = 1 kHz, and of the integrand of Eq. (4) with (thin gray line) and without (thin black line) the random perturbation, for a Zweig model with Q = 4, and another with Q = 12, for two different roughness patterns r(x). A number of distinct peaks appear within the resonant region.