Figure 5
From: Lateral Variation of Crustal Lg Attenuation in Eastern North America
(a) All 58 corrected Lg amplitudes at individual frequencies, including the amplitudes corrected by the geometric spreading functions (black dots), the residuals removing both the source term and path Q (red dots), and final residuals removing the source term, Q and site response (blue dots). (b) The interpretation scales at 58 frequencies. Interpretation scale is the ratio of estimated amplitude to observed amplitude.
