Accession Number:

AD0753837

Title:

Estimating the Depth Dependence of Ocean Horizontal Diffusion Coefficients

Descriptive Note:

Technical rept.

Corporate Author:

TRW SYSTEMS GROUP REDONDO BEACH CA

Personal Author(s):

• Alber, Irwin E.

Report Date:

1972-12-01

Pagination or Media Count:

24.0

Abstract:

A simple empirical estimate is presented for predicting the variation with depth of a scalar concentration field in the far wake of a submarine operating beneath the ocean surface. By examining near surface and intermediate depth diffusion and turbulent dissipation data, it is shown that the horizontal diffusion coefficient decreases by a factor of from 2.2 to 2.5 in the depth regime between 10 and 300 meters. Semi-empirical equations for the strength of the concentration field from instantaneous and continuous sources are developed.

Descriptors:

• *WAKE
• *SUBMARINES
• OCEAN WAVES
• DETECTION
• WAKE DETECTORS
• DIFFUSION
• TURBULENCE

Subject Categories:

• Physical and Dynamic Oceanography
• Undersea and Antisubmarine Warfare
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE