Accession Number:

ADA629966

Title:

Large Amplitude Breaking Internal Waves: Their Origin and Dynamics

Descriptive Note:

Corporate Author:

RHODE ISLAND UNIV NARRAGANSETT GRADUATE SCHOOL OF OCEANOGRAPHY

Personal Author(s):

Report Date:

2006-09-30

Pagination or Media Count:

7.0

Abstract:

LONG-TERM GOALS. To determine the mechanisms of generation, propagation, dissipation, mixing and decay of large amplitude internal waves formed by tidal flow past topography. OBJECTIVES. Our objectives are to use both acoustic remote sensing and in situ profile observations of large amplitude internal waves, together with highly resolved numerical simulation, so as to develop a predictive understanding of their behavior, with application to their generation by flow past topography, their contribution to mass and momentum transport, mixing, modulation of near surface bubble clouds and related properties, including the subduction of bubbles and their fate in the presence of large amplitude streamline deformations trapped behind sills, before their release as freely propagating internal waves. A further objective is to use the numerical simulation to test hypotheses related to observed convective overturning and shear instability induced by the waves under different conditions of stratification and shear and to estimate the mixing and dissipation resulting from these processes.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Miscellaneous Detection and Detectors
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE