title: Frequency dependent beating patterns and amplitude increase during the approach of an internal wave packet.
abstract: A frequency-dependent beating pattern in the spectrogram of broadband signals transmitted during the approach of an internal wave packet to an acoustic propagating path is reported. An analytical expression relating the acoustic signal measurements and environmental parameters under certain conditions is obtained. Three-dimensional parabolic equation modeling results compare well with Shallow Water 2006 experiment data.
authors.affiliation: College of Earth, Ocean and Environment, University of Delaware, Newark, Delaware 19716, USA. luojing@udel.edu
authors.forename: Jing
authors.initials: J
authors.lastname: Luo
authors.forename: Mohsen
authors.initials: M
authors.lastname: Badiey