A Determination of the Constants for a Second-Order Closure Turbulence Model from Geophysical Data,

Abstract

Values of four parameterization constants for the bulk, second-order closure turbulence model of Garwood (1976) are determined using ocean data from the North Pacific experiment (NORPAX) Trans-Pacific ship of opportunity program (TRANSPAC) and atmospheric forcing from the Fleet Numerical Oceanography Center (FNOC) model. The annual cycle of sea surface temperature is simulated for each of the years 1976-1978. The difference between the simulated and the analyzed monthly change of sea surface temperature is minimized to determine the optimal values of the model constants. Three statistical techniques are used to determine the sensitivity of the model to changes of the model constants. Two techniques, bootstrapping and pooled permutation procedure, yield similar conclusions. The third, a standard students's t-test, proved to be overly sensitive. The formulation for the absorption of solar radiation with depth, in the Garwood model, is a simplification of a two exponent model.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1983
Accession Number
ADA134826

Entities

People

  • A. A. Bird
  • P. C. Gallacher
  • R. L. Elsberry
  • R. W. Garwood Jr.

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Absorption
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Data Science
  • Data Sets
  • Grids
  • Information Science
  • Oceanography
  • Oceans
  • Radiation
  • Research Facilities
  • Sea Surface Temperature
  • Solar Radiation
  • Statistical Tests
  • Statistics
  • Surface Temperature

Fields of Study

  • Environmental science

Readers

  • Computational Modeling and Simulation
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers
  • Regression Analysis.