“…Westphal et al (2003) demonstrated that decision support systems (DSS) can produce reasonable flood control operating schedules. Karbowski et al (2005) calculated water releases based on two-variant inflow forecasts and some expert knowledge and applied this to real-time operation of a water retention reservoir during flooding. Genetic algorithms are well known global search techniques for solving nonlinear reservoir optimization problems such as reservoir management (Chang and Chen, 1998;Cai et al, 2001;Chang et al, 2005b), reservoir operating rules (Oliveira and Loucks, 1997;Chang et al, 2005a), real-time reservoir operation (Chang and Chang, 2001;Akter and Simonovic, 2004), Multireservoir systems optimization (Wardlaw and Sharif, 1999;Sharif and Wardlaw, 2000;Reis et al, 2005), etc.…”