Abstract
In order to carry out effective countermeasures for water quality in dam-reservoirs, it is necessary to observe water quality in detail. MSS on aircraft is useful for observation of horizontal distribution of water quality. The observation by MSS which has 12 bands was carried out for 3 dam-reservoirs and the distributions of water temperature, SS and chlorophyll-a were analyzed by the relationship between CCT count of specific bands and ground truth data for each item. As one of the results, a sinking point of inflow which has high density was identified clearly.
