2010 Volume 78 Issue 3 Pages 167-174
In this study, a new method has been proposed that can reveal changes of wetland surface condition using high spatial resolution satellite data (IKONOS) for actual wetland managements. The method can detect the wetland surface change based on the NDVI change domain in wetlands using bi-temporal satellite data through analyzing ‘coordinate of NDVI change’. We applied the method to Kawaminami wetland in Miyazaki prefecture for comparing the calculation results and actual state of wetland with observed groundwater level data. As the results, it was able to extract artificial change of the wetland surface precisely and to detect differences of the wetness of the surface in two imageries. For satellite data analysis, it was indicated that utilization of supplementary climate data such as rainfall is important. The proposed method is effective for actual wetland managements, because it is simple and practical.