Evaluating Flood Risk Area using GIS and RADARSAT Data-A Case Study in Northeast Thailand

  • Mongkolsawat, C. (Computer Centre, Khon Kaen University) ;
  • Thirangoon, P. (Department of Computer Science, Khon Kaen University) ;
  • Suwanwerakamtorn, R. (Department of Computer Science, Khon Kaen University) ;
  • Karladee, N. (Computer Centre, Khon Kaen University) ;
  • Paiboonsak, S. (Faculty of Agriculture, Khon Kaen University)
  • Published : 2003.11.03

Abstract

The objective of this study is to evaluate flood risk area by integrating GIS and RADARSAT data. The study area, Northeast Thailand, is subject to flood during the rainy season. The main data used in this evaluation included RADARSAT data, landform and topographic map. The evaluation was conducted by overlay operation of flood area in 2001, land form and buffer region beyond the flood areas with the selection criteria defined. Most of the flood risk areas were found in the low lying land form within the buffer region. The cloud penetrating capabilities of SAR is only a source of information for effectively assessment of flood risk area in Northeast Thailand.

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