Publications
Experimental measurements of normal-mode statistics at megameter ranges
Invited talk in special session on Long-Range Acoustic Propagation
Abstract
The Acoustic Thermometry of Ocean Climate, Alternate Source Test, and North Pacific Acoustic Laboratory experiments generated extensive vertical array data sets for studying normal mode signals at megameter ranges. These data sets include receptions for 28 Hz, 75 Hz, and 84 Hz sources at ranges of 3.5 Mm and 5 Mm. Recent analysis of the low mode arrivals in these receptions produced estimates of important mode statistics, including the modal time spread, cross-mode coherence, and temporal coherence. This talk will present the experimental results and place them in context, making comparisons to theoretical predictions about long-range mode propagation and to numerical simulations. The implications for future research will be discussed. [Work sponsored by an ONR Ocean Acoustics Entry-Level Faculty Award.]
© 2004 Acoustical Society of America. This abstract may be downloaded for personal use only. Any other use requires the permission of the author and the Acoustical Society of America. The abstract appeared in the Journal of the Acoustical Society of America, vol. 116(4), p. 2608, October 2004 and may also be found on the JASA website.