USING UPDATED PARABOLIC EQUATIONS CODES TO EXAMINE ACOUSTIC TRANSMISSION LOSSES MEASUREMENTS OVER THE ARGENTINEAN CONTINENTAL SLOPE

up and down slope acoustic propagation measurements were conducted in 1989 [milou et al., 1990] over the argentinean continental slope leading to experimental values of transmission losses (tl) for the 100 - 400 hz frequency band. this enabled comparisons between the obtained data and the parabolic equation (pe) model predictions. with the aim of examining the effects of using updated pe codes [collins, 1993] including their corresponding physical and computational improvements, on the already obtained results, predicted tl values are recomputed. an analysis of these new comparisons are presented here