MEASUREMENT OF COASTAL EROSION ON THE EAST SEA USING CORONA SATELLITE IMAGERY

  • Park, Hee-Dae (Yonsei.University, School of Civil Engineering) ;
  • Kim, Jong-Hong (Yonsei.University, School of Civil Engineering) ;
  • Heo, Joon (Yonsei.University, School of Civil Engineering)
  • Published : 2006.11.02

Abstract

In this paper, a small portion of coastline on the EAST SEA was studied using CORONA panoramic satellite photo and 1:5000 Korean National Topographic Map. The project site near Kangneung city was 3 Km shoreline on the Kangmoon Beach and the SongJeong Beach, which have suffered from severe erosion. The first and the most important step was to rectify a CORONA image over the project site. A rigid mathematical model and a heuristic polynomial transformation were used for the purpose. The rectified image was overlaid with 1:5000 Korean National Topographic Map produced by aerial mapping. Among numerous methods for shoreline erosion measurement, area-based approach was chosen and used for the computation for annual shoreline recession. The final result of the analysis was that the average recession in the period of 1963-1998 was 33.6m and the annual rate was 0.96m.

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