Modeling the SAR Signature of Nonlinear Internal Waves

Abstract

The long-term goal of this project is to develop a forward model that predicts the Synthetic Aperture Radar (SAR) signature of Non-Linear Internal Waves (NLIWs) under a range of environmental conditions. The objectives of this project are to understand, quantify and model the factors that influence the SAR signature of internal waves (IWs) using in situ and remote measurements. To accomplish this we have been studying the variables that impact the both the surface roughness and the corresponding radar backscattering cross section. Previous efforts focused on modeling the modulation of surface waves by IWs using the action balance equation with source terms of energy input from the wind and energy loss from viscous dissipation. Our work seeks to include additional action source terms such as wave-wave interaction, generation of parasitic capillary waves and breaking waves.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2007
Accession Number
ADA573226

Entities

People

  • Ellen E. Lettvin

Organizations

  • University of Washington

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Backscattering
  • Capillary Waves
  • Equations
  • Gravity Waves
  • Internal Waves
  • Measurement
  • Microvessels
  • Models
  • Modulation
  • New Jersey
  • Physics Laboratories
  • Radar
  • Surface Roughness
  • Surface Waves
  • Synthetic Aperture Radar
  • Two Dimensional
  • Waves

Fields of Study

  • Physics

Readers

  • Coastal Oceanography
  • Radar Systems Engineering.