Abstract
Across the Lower Mekong Basin, a number of areas suffer from frequent inundation, hindering social and economical development of the region. To relieve the damage caused by such inundation and to ensure stable agricultural production, continuous assessment of the damage is necessary. Damage conditions are currently surveyed by interviewing farmers ; however, data gathered by this method is not sufficient to implement . effective measures after water recession. To improve this situation, the JIID decided to try SAR images captured by RADARSAT, which is an all-weather radar observation satellite, to enable prompt implementation of measures when an inundation occurs. With this satellite, images can be taken of specified locations on specified dates. As a result, it has become possible to create an inundation map by overlaying time-series inundation images.
