Acoustic noise interferometry in the Straits of Florida at 600 m depth: Preliminary results

A field experiment designed to test the feasibility of noise interferometry was conducted in the Florida Straits in September/October 2013 in water of approximately 600 m depth. Ambient noise was recorded concurrently on three moored near-bottom instruments with horizontal separations of approximate...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2014-04, Vol.135 (4_Supplement), p.2167-2167
Main Authors: Brown, Michael G., Williams, Neil J., Zang, Xiaoqin, Godin, Oleg A., Zabotin, Nikolay A., Zabotina, Ludmilla
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A field experiment designed to test the feasibility of noise interferometry was conducted in the Florida Straits in September/October 2013 in water of approximately 600 m depth. Ambient noise was recorded concurrently on three moored near-bottom instruments with horizontal separations of approximately 5 km, 10 km, and 15 km. Consistent with theoretical predictions, coherent sums (stacks) of many realizations of ambient noise at two measurement locations are shown to yield approximations to deterministic Green's functions that describe propagation between the two locations. Ray- and mode-based simulations of approximations to Green's functions are compared to measured stacked cross-correlations. [Work supported by NSF and ONR.]
ISSN:0001-4966
1520-8524
DOI:10.1121/1.4877044