| Popis: |
Experimental data on range and azimuthal dependence of long‐range, low‐frequency reverberation from specific topographic scatterers are limited. Such information is important in designing controlled scattering experiments and in determining scattering mechanisms at the seafloor. In an effort to examine the spatial structure of reverberation, data from the BHST experiment, a test for the development of a wide‐area bathymetric reconnaissance technique [Schifter et al., Marine Geodesy 10(1), 1–33 (1986); Erskine et al., Marine Geodesy 10(1), 67–78 (1986)] have been analyzed. Seafloor reverberation from deep explosive line array sources (bubble‐pulse frequency of 270 Hz) was received on a towed array in the Canary Basin and processed to obtain spatial distribution of scattering features. Scattering strengths of specific features were estimated from the measured reverberation levels using calculated transmission loss and simplified scattering areas for the long‐path propagation. Initial results for four bathym... |
