WATER QUALITY ESTIMATION OF THE INNERMOST PART OF THE ARIAKE SEA BASED ON SATELLITE IMAGES AND FIELD OBSERVATION

Abstract

A water quality of the Ariake Sea is estimated by using Landsat-TM, ETM+data and field observation. The estimation model for not only the water transparency or temperature but also the salinity, chlorophyll-a etc. are developed through regression analysis. Continuous field observation at fixed locations in the Ariake Sea was executed during about 5 months. The results obtained by this observation could explain the characteristics of the water quality in the innermost part of this bay and complement the estimated water quality distribution by the satellite images very well.