Abstract
The real-time reservoir operation is carried out under considerations of similar hydrograph and it's drought severity. In this paper, we will propose the decision support system through knowledge base and fuzzy inference. Discharge is predicted by combining long-term weather forecast and hydrograph similarity. Basic operation rules for drought is extracted through classified hydrographs and divided storage volume. Moreover, depending on the controlled performance, the reservoir operator can change the saving rate (release) through fuzzy inference.
