Accession Number:

ADA629777

Title:

Fluctuations, Coherence and Predictability of Long Range Shallow Water Propagation in the Straits of Florida

Descriptive Note:

Annual rept.

Corporate Author:

ROSENSTIEL SCHOOL OF MARINE AND ATMOSPHERIC SCIENCE MIAMI FL

Report Date:

1999-09-30

Pagination or Media Count:

6.0

Abstract:

The long-term goal is understanding long range acoustic propagation in shallow water. The coherence and predictability of long-range shallow water propagation deteriorates with higher frequency and longer range of propagation. We seek to understand the randomizing effect of fluctuations in bathymetry, sound speed and the geo-acoustic properties of the bottom. Usually, a propagating sound field is randomized after tens of kilometers of transmission but occasionally, stable and coherent signals are observed at much longer range Monjo et al, 1997. We search for such islands of coherence in a sea of chaos.

Subject Categories:

  • Hydrology, Limnology and Potamology
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE