Modeling of Current Features in Gulf Stream SAR Imagery

Abstract

The theoretical formulation, numerical implementation, and testing of NRL's recently developed time-dependent ocean wave model (NTOW) is described. The propagation of the wave field is computed via the action density conservation equation for general time varying currents, winds, and bathymetry. The NTOW model is used to predict wave-current interaction effects in a region of strong surface convergence near the edge of the Gulf Stream off Cape Hatteras. The computed wave field is used in conjunction with a composite scattering radar model to derive radar imagery. Our radar predictions are compared with real aperture radar data collected during the NRL high-resolution remote sensing experiment (Valenzuela, 1991). Remote sensing, Ocean currents, Wave-current interaction, Gulf Stream, SAR imagery.

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Document Details

Document Type
Technical Report
Publication Date
Sep 13, 1993
Accession Number
ADA270734

Entities

People

  • Gasper R. Valenzuela
  • Robert A. Fusina
  • Robert W. Jansen
  • Scott R. Chubb

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Cape Hatteras
  • Capillary Waves
  • Composite Materials
  • Convergence
  • Convergence Zones (Sonar)
  • Equations
  • Frequency
  • Gulf Stream
  • High Resolution
  • Ocean Currents
  • Ocean Waves
  • Oceans
  • Remote Sensing
  • Scattering
  • Water Waves
  • Wave Propagation
  • Waves

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Atmospheric Science/Meteorology
  • Radar Systems Engineering.