Accession Number:

ADA517968

Title:

Measurements of Ambient Noise During Extreme Wind Conditions in the Gulf of Mexico

Descriptive Note:

Conference paper

Corporate Author:

NAVAL RESEARCH LAB STENNIS SPACE CENTER MS

Report Date:

2007-01-01

Pagination or Media Count:

7.0

Abstract:

The Littoral Acoustic Demonstration Center LADC deployed three Environmental Acoustic Recording System EARS buoys in the northern Gulf of Mexico during the summer of 2002 LADC 02. The hydrophone of each buoy was approximately 50 m from the bottom in water depths of 645 m to 1034 m. During LADC 02 Tropical Storm Isidore and Hurricane Lili passed within approximately 73 nmi and 116 nmi, respectively, west of the EARS buoys. The proximity of these storm systems to the EARS buoys, in conjunction with wind speed data from three nearby National Data Buoy Center weather NDBC buoys, allows for the direct comparison of underwater ambient noise levels with high wind speeds. These results are compared to the G. M. Wenz spectra at frequencies from 1 kHz to 5.5 kHz. Anomalously high levels of ambient noise may be due to banding effects of the storms. Results of the ambient noise analysis will be presented.

Subject Categories:

  • Meteorology
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE