人工衛星データを用いた洪水氾濫水位の算出手法の検討～メコン川下流域を例として～

抄録

The present study describes about processes to estimate a water surface elevation on inundated area applying satellite based information. For this purposes, 2011 large flood at Lower Mekong Basin was selected. Firstly, Moderate Resolution Imaging Spectrometer (MODIS) was applied for obtained inundated area with calculating Modified Land Surface Water Index (MLSWI), which is the method originally proposed by the authors. Examination of MLSWI in Six month was conducted to classified the flood. Secondary, with combining the Shuttle Radar Topography Mission (SRTM) and the inundated area, water surface elevation was determined. Finally, the water surface elevation was validated in terms of gauge data as well as water surface profiles.