Optics, Acoustics and Stress in Situ (OASIS)

Abstract

To quantify and understand the effects of aggregation dynamics on the distribution of particles in the bottom boundary layer, and to understand how the properties of particles (composition, shape, and internal structure) affect their optical and acoustical properties. Obtain direct measurements of the turbulent Reynolds stress within the centimeters-thick wave boundary layer (WBL). Obtain concurrent velocity, turbulence and seafloor microtopography (bedforms) measurements to constrain the fluid dynamical environment within which the particle size distribution evolves. Improve state-of-the-technology for measuring boundary layer velocity and turbulence profiles (Pulse Coherent Doppler Profiler) and seafloor bedform measurements (Rotary Sidescan and Pencil-beam sonars).

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2011
Accession Number
ADA557171

Entities

People

  • John H. Trowbridge
  • Peter Traykovski

Organizations

  • Woods Hole Oceanographic Institution

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Acoustics
  • Boundaries
  • Boundary Layer
  • Data Acquisition
  • Doppler Sonar
  • Doppler Systems
  • Frequency
  • Instrumentation
  • Layers
  • Measurement
  • Particle Size
  • Particles
  • Pencil Beams
  • Shear Stresses
  • Stresses
  • Universities
  • Waves

Fields of Study

  • Environmental science
  • Physics

Readers

  • Coastal Oceanography
  • Fluid Dynamics.
  • Radar Systems Engineering.