Eddy-Mean Energetics in the Gulf Stream during REX: Model/Data Intercomparisons

Abstract

A primary goal for REX is the description of the eddy-mean energetics of the Gulf Stream region from Cape Hatteras to the Grand Banks from in situ, remotely sensed, and ocean model studies. We have obtained estimates of mean and eddy available potential and kinetic energy using three years of data from the GEOSAT Exact-Repeat Missions (ERM). Temporal mean APE of the total water column is computed from annual and interannual mean deviations in the surface topography relative to precise estimates of the local geoid profile along GEOSAT-ERM collinear ground tracks. We have also examined complete energetics from a primitive equation ocean model at 1/8th degree horizontal resolution in statistical equilibrium for a comparable time span. Finally, we have analyzed data from arrays of inverted echo sounders and bottom pressure gauges deployed during REX. Eddy-mean energetics intercomparison between model and observations, including historical data, are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1990
Accession Number
ADA230974

Entities

People

  • A. Wallcraft
  • D. W. Blake
  • J. D. Thompson
  • J. L. Mitchell
  • J. M. Dastugue

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Availability
  • Cape Hatteras
  • Classification
  • Equations
  • Gulf Stream
  • Kinetic Energy
  • Monitoring
  • Oceanography
  • Oceans
  • Pressure Gages
  • Security
  • Sonar
  • Standards
  • Topography

Fields of Study

  • Environmental science

Readers

  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers
  • Oceanography.
  • Space Exploration and Orbital Mechanics.