Abstract
In recent years, domestic sewage and industrial waste water are having a bad influence on water Quality of the Omura Bay in Nagasaki prefecture. Therefore it is need to monitor water quality and clean up the Omura Bay. In this paper, sea water of satellite observation are classified into water of the Omura Bay and water of the Sasebo Bay by maximum likelihood method, and currents of the Omura Bay are investigated. And the result are compared with currents in a hydrogeological model of the Omura Bay.
