衛星リモートセンシングを用いた北潟湖の水質計測--北潟湖水の分光計測  [in Japanese] Estimation of water quality of Lake Kitagata based on remote sensing technique: spectral measurement of Lake Kitagata  [in Japanese]

The purpose of our research is to develop the procedure to extract the information of water quality of Lake Kitagata (heavily eutrophic lake), from multi-spectral satellite images. As the first step of our research, the controlled experiment in the laboratory, measuring the spectral reflectance of water of Lake Kitagata to search the principal components in it, has been carried out. Preliminary results of the laboratory experiment indicate that the main components of the water of Lake Kitagata are mud and plant including phytoplankton. Moreover, the results of the analyses for the direct sampling data of Lake Kitaga obtained by local government of Fukui prefecture are also reported.