Stanley M. Flatte
Phys. Dept., Univ. of California, Santa Cruz, CA 95064
The Slice89 experiment sent sound pulses through the Pacific over a 1000-km path. Different identified wavefronts showed clear M2 internal-tidal signals in their arrival-time series. we have examined internal-tide models composed of the first three vertical modes in order to fit the Slice89 data. The horizontal directions of the three modes were allowed to be different. The horizontal structure of the models varied from plane waves to waves that are localized along the direction of acoustic propagation. It has been found that the best-fit internal-tide model within the parametrization, and the resulting fit is reasonable. These results along with those of other experiments in the same geographical area have been compared.