Dynamics of Frontal Intrusions and Their Effects on a Mediterranean Salt Lens

Abstract

The goals were parameterisation of the structure, amplitude, and mixing rate of finite-amplitude lateral intrusions. These occur at most oceanic fronts, including the Gulf Stream, and drive cross-frontal mixing. The highly structured quasi-horizontal sound speed perturbations may strongly affect acoustic propagation across such fronts. Specific objectives were (1) To understand the role of vertical mixing of salt, heat, mass, and momentum in driving lateral intrusions. (2) To predict the scale, structure, and magnitude of finite-amplitude intrusive features in terms of mesoscale gradients. (3) To predict the rate of lateral transport of salt, heat, and momentum caused by intrusive mixing at oceanic fronts.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1991
Accession Number
ADA244953

Entities

People

  • Barry Ruddick

Organizations

  • Dalhousie University

Tags

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Amplitude
  • Diffusion
  • Dynamics
  • Gulf Stream
  • Intrusion
  • Microstructure
  • Mixing
  • Momentum
  • Nova Scotia
  • Oceanography
  • Personal Information Managers
  • Perturbations
  • Systems Science
  • Turbulent Mixing

Fields of Study

  • Environmental science

Readers

  • Atmospheric Science/Meteorology
  • Control Systems Engineering.
  • Oceanography.