Coupled Mixed Layer-Acoustic Model.

Abstract

A coupled ocean mixed layer-acoustic model is evaluated in two dimensions at a line of stations in the northeast Pacific Ocean. The Oceanic Boundary Layer Model (OBL) is initialized using bathythermograph data acquired during the 1980 Storm Transfer and Response Experiment (STREX). The OBL model was used to predict a new thermal profile after integrating in time for 20 days. This was then compared with actual bathythermograph data taken 20 days later. Three cases were examined: initial, model, and final data as input to the RAYMODE acoustic model. The acoustic performance for the three cases was measured median detection range (MDR) and convergence zone range (CRZ). In the absence of strong horizontal advection, over a 20 day period the OBL can predict surface temperature to within an average of 0.5 C. Therefore the coupled models can be used effectively to help predict MDR and CZR in a tactical situation. Keywords: Oceanic mixed layer; Coupled thermodynamic-acoustic model; Theses.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1985
Accession Number
ADA160952

Entities

People

  • John J. Mcmanus

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Space

DTIC Thesaurus Topics

  • Advection
  • Bathythermographs
  • Boundaries
  • Boundary Layer
  • Computer Programs
  • Convergence
  • Convergence Zones (Sonar)
  • Detection
  • Heat Energy
  • Isotherms
  • Layers
  • Navy
  • Oceans
  • Pacific Ocean
  • Surface Properties
  • Surface Temperature
  • Temperature Inversion

Readers

  • Computational Modeling and Simulation
  • European Security and Defence Policy (ESDP).
  • Oceanography.