TOPSIS Assessment of water use vulnerability in the unit watersheds using TOPSIS approach with subjective and objective weights

摘要

In the present specification, selected is an indicator considering a situation of each watershed for assessing vulnerability of each small watershed. Indicator data is constructed by using national statistics and reports based on a current point of time and a SWAT model that can be simulated for each watershed. Also, multiple weights are applied by using subjective and objective weights. The vulnerability of each unit watershed by applying a TOPSIS method among multiple criteria decision methods. When assessing water resource vulnerability, a water resource is classified according to water quantity and water quality/aquatic ecology, thereby grasping a part with high vulnerability according to each watershed.