Abstract:
During an international acoustic tomography experiment, which had been deployed in the western Mediterranean in 1994, acoustic measurements with vertical arrays were made from autonomous bottom modules. Due to near-bottom signal receiving, a number of time-separated bottom reflected and refracted signals were obtained after correlation processing. One of the short-range observation points was chosen to investigate the possibility of using THETIS-2 signals for bottom parameter reconstruction. Using distribution and inverse methods, sound-speed profiles in the upper bottom layer were reconstructed. Analysis of the possibility to obtain signals at ranges up to 200 km from autonomous bottom modules for use in bottom parameters reconstruction was performed. [Work supported by RFFI Project N 96-02-18944.]