Accession Number:

ADA330019

Title:

Bottom Backscattering Measured Southwest of Key West During Littoral Warfare Advanced Development Focused Technology Experiment 97-2

Descriptive Note:

Interim rept.

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC ACOUSTICS SYSTEMS BRANCH

Report Date:

1997-09-30

Pagination or Media Count:

15.0

Abstract:

Measurements of ocean bottom backscattering were performed in a shallow water environment southwest of Key West, Florida. as part of the Littoral Warfare Advanced Development LWAD Focused Technology Experiment 97-2 FTE 97-2. Scattering strengths were obtained at 2, 2.5, 3 and 3.5 kHz as a function of grazing angle at a single site with a sandy bottom. The scattering strengths roughly followed a Lamberts Law dependence on the square of the sine of the grazing angle dependence with constants ranging from -22 dB for 2000 Hz to -19 dB for 3500 Hz. This frequency dependence was consistent with the results given by the Mourad-Jackson bottom scattering model.

Subject Categories:

  • Acoustic Detection and Detectors
  • Physical and Dynamic Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE