Abstract
The purpose of this study is a monitor of Senjyogahara wetland by multitemporal LANDSAT TM/ ETM+ data. Four indices of NDVI, MWCI, Cv, and Cw were used for the analysis. Cv, and Cw are indices calculated by the pattern decomposition method. The principal component analysis (PCA) and the change vector analysis (CVA) were used for the time series analysis. As a result of the PCA, the principal ingredient in which the change in the period was shown about four indices was able to be obtained. The change of 15 years in the marshland was clarified by the result of those principal ingredient and CVA.1) Senjyogahara region is made dry.2) Odashirogahara region is made moist.3) Sakasagawa-river inflow part is made dry.4) The water current dividing into parts with the national road has gone. The above-mentioned tendency was able to be confirmed.
