Scaled model experiment of long-range across-slope pulse propagation in a penetrable wedge.
In this paper, laboratory scale measurements of long-range across-slope propagation of broadband pulses in a shallow-water wedge-shaped environment with a sandy bottom are reported. The scaled model was designed to study the three-dimensional (3D) acoustic field in the presence of only a few propagating modes. The recorded time series exhibit prominent 3D effects such as mode shadow zones and multiple mode arrivals. Inspection of the spectral content of the time signals gives evidence of intra-mode interference and frequency dependence of the mode cut-off range in the across-slope direction.
Korakas
Alexios
A
LMFA UMR CNRS 5509, Ecole Centrale de Lyon, Ecully, France. alexis.korakas@ec-lyon.fr
Sturm
Frédéric
F
Sessarego
Jean-Pierre
JP
Ferrand
Didier
D