Relative Backscattering Strengths from DTAGS Data

摘要

Analysis of data from the 1989 Blake-Bahama Basin Deep Towed Acoustics-GeophysicsSystem (DTAGS) experiment has yielded normal incidence backscattering strengths for the sea bottom. Interesting features are found over the escarpment. The horizontal DTAGS streamer of 24 receiver groups permits relative scattering strengths to be obtained as a function of grazing angle. The DTAGS chirp source covers a range of frequencies from 250-550 Hz, and relative scattering strengths are also presented as a function of frequency. (edc)