Title :
Acoustical remote sensing of ocean internal waves: progress and remaining challenges
Author :
Rouseff, Daniel ; Ewart, Terry E. ; Reynolds, Stephen A.
Author_Institution :
Appl. Phys. Lab., Washington Univ., Seattle, WA, USA
Abstract :
The state of the art for using acoustics to characterize ocean internal waves is reviewed. Results are presented for several experiments that span a wide range of oceanographic conditions. The inclusion of the proper physics in the model for acoustic propagation is shown to be crucial. Examples of remaining challenges include developing techniques to handle steeply turning ray paths, and generalizing Rytov theory to calculate two-point statistics in the presence of a sound speed gradient
Keywords :
acoustic variables measurement; ocean waves; oceanographic techniques; underwater sound; Rytov theory; acoustic method; acoustic propagation; acoustics; dynamics; internal wave; measurement technique; model; ocean wave; sound speed gradient; steeply turning ray path; two-point statistics; underwater sound; Acoustic measurements; Acoustic waves; Dispersion; Fluctuations; Frequency; Laboratories; Oceans; Physics; Remote sensing; Water resources;
Conference_Titel :
OCEANS '99 MTS/IEEE. Riding the Crest into the 21st Century
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5628-4
DOI :
10.1109/OCEANS.1999.800189
