Korean Journal of Remote Sensing (대한원격탐사학회지)

Korean Society of Remote Sensing (대한원격탐사학회)
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Study of the Tidal Channels Appeared on SAR Images

  • Kim, Tae-Rim (Department of Coastal Construction Engineering, Kunsan University) ;
  • Park, Jong-Jib (Department of Coastal Construction Engineering, Kunsan University) ;
  • Choi, Byoung-Ju (Department of Oceanography, Kunsan University)
  • Published : 2009.12.30
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Abstract

Quasi-linear bright features persistently appeared on ENVISAT ASAR images as well as X-SAR images along the tidal channels in Gyung-Gi Bay, Korea during the ebb tides. These features are induced by spatial backscatter variations caused by surface convergence (divergence) through the interaction between tidal currents and bathymetry. In order to validate this mechanism, a numerical tidal model simulation is performed on the realistic bathymetry with the tidal boundary conditions. The tide model reproduces the current convergence zone along the tidal channel during the ebb tides, which exactly coincides with the location of bright line features on SAR images.

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References

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