Analysis of Surface Patterns over Cobb Seamount Using Synthetic-Aperture Radar Imagery.

Abstract

Anomolies in surface wave patterns observed on SEASAT Synthetic-Aperture Radar (SAR) imagery over Cobb Seamount are examined. These anomalies are the surface expression of currents interacting with the seamount. The wavelength of the imaged surface patterns are extracted with advanced SAR digital image processing techniques. Nine of the ten detected wavelengths match the expected spectral wavelength envelope of the internal waves that are calculated using oceanographic data. The results show that the wavelengths of the surface pattern imaged are actually the surface manifestation of internal waves on a subsurface density interface. The internal waves are created by current flow over and around Cobb Seamount disturbing the density interface. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 27, 1986
Accession Number
ADA171670

Entities

People

  • Clark B. Freise

Organizations

  • United States Naval Academy

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Detection
  • Detectors
  • Digital Image Processing
  • Digital Images
  • Digital Information
  • Doppler Effect
  • Image Processing
  • Internal Waves
  • Jet Propulsion
  • Oceanography
  • Radar
  • Remote Sensing
  • Surface Waves
  • Synthetic Aperture Radar
  • Two Dimensional
  • United States Naval Academy
  • Waves

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Oceanography.
  • Radar Systems Engineering.