Nonlinear Internal Waves and Coastal Ocean Acoustics: Are We There Yet?

date November 9, 2015
comments no comments.

Monday, November 9, 2015 1:00 p.m. in RLM 11.204

Dr. James F. Lynch
Woods Hole Oceanographic Institution
Woods Hole, Massachusetts
http://www.whoi.edu

Chinese experiments in the late 1980’s-90’s showed that the interaction of low frequency (10-1000 Hz) sound with nonlinear coastal internal waves (soliton trains) could cause a 40 dB drop in sound intensity due to scattering. These observations resulted in an interest in coastal nonlinear internal waves that continues to this day. In this talk, I will review the history and results of the acoustics/nonlinear internal wave research. I will then address the questions one must ask after a prolonged effort: Are we there yet? Is there anything useful left to do?