Measurement of the Kuroshio and Its Associated Luzon Strait Throughflow by Ocean Acoustic Tomography

Abstract

The Luzon Strait is located at the western edge of the North Pacific subtropical front. ENSO related variability occurring in the tropical Pacific is directly transferred to the strait through the meridional shift and transport change of the North Equatorial Current (NEC). Also the Luzon Strait throughflow, a branch of the Kuroshio, produce a significant source not only to Kuroshio variability in the East China Sea and around Japan far downstream of the strait, but also to the climate variability in the South China Sea. The volume and heat exchange between the western North Pacific and South China Sea by the strait throughflow also serve to be a trigger to global climate changes through the air-sea interaction there. On the other hand, there are intense internal tide activities in the Luzon Strait because of the interaction of barotropic tides with sills at the depth (800-900m) of main thermocline. Strong turbulent mixing, generated by the breaking of internal tides and the associated internal waves, increases eddy viscosity and diffusivity and modifies the throughflow parameterization.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2008
Accession Number
ADA533103

Entities

People

  • Arata Kaneko

Organizations

  • Hiroshima University

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Acoustic Tomography
  • Climate Change
  • East China Sea
  • Internal Waves
  • Measurement
  • Ocean Acoustic Tomography
  • Oceans
  • Schematic Diagrams
  • Simulations
  • Sound Transmission
  • South China Sea
  • Tomography
  • Turbulent Mixing
  • Waves

Fields of Study

  • Environmental science

Readers

  • Asian Economic Studies
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Atmospheric Science/Meteorology