Methods and Systems for Use of an Acoustic Doppler Current Profiler for Measurement of Compact Jets

Abstract

A method is provided for improving horizontal spatial resolution of a flow field in compact jet-like current features so as to quantify the axial velocity in the cross section of a compact jet using an Acoustic Doppler Current Profiler (ADCP). The ADCP is a four-beam, Janus-type ADCP having beams aligned so that each of the beams is at an angle of about 200 to 300 to vertical and at 450 to the fore and aft axis of the vessel, such that two beams point at 450 to forward and two pointing 450 to aft. The measurements from each range bin of the aft-facing beams are combined with the previously measured samples from the corresponding forward-facing beams at the same position along the vessel track.

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Document Details

Document Type
Technical Report
Publication Date
Jun 25, 2007
Accession Number
ADD020293

Entities

People

  • Peter J. Hendricks

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Beams
  • Backscattering
  • Doppler Effect
  • Flow
  • Flow Fields
  • Gulf Stream
  • High Resolution
  • Inventions
  • Measurement
  • Ocean Currents
  • Oceans
  • Patent Applications
  • Patents
  • Radial Velocity
  • Scattering
  • Transducers
  • Underwater Acoustics

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers
  • Radar Systems Engineering.