Figure 2
From: Surface wave tomography using dense 3D data around the Scrovegni Chapel in Padua, Italy
(a) Detail of Brunelli Bonetti’s hypothetical reconstruction of the amphitheater (modified from Bressan27). (b) Phase velocity map for 18 Hz. (c) Cadastral map of Padua dating back 1966. (d) Autospectrum gradient map at 18 Hz. The corresponding features are highlighted with arrows of the same color.
