Abstract
This study aims at the prediction of released water from reservoirs to avoid water deficit, by using the transition probability of sequential 10-days averaged discharge on the basis of a bivariate log-normal distribution. After the soundness of the adopted distribution and Markoff chain were proved, the probability of release amount during 30 days were shown in some numerical values. This technique can bring practical prediction for the release amount by using the climatic information on future rainfall amount.
