Water quality control in open channels

With the increasing degree of automation in Dutch water management the need for control systems and design procedures for control systems is also evol ving. Traditionally these control systems were used for water level and dis charge control only. With the measurement equipment that is currently avail able, improved water quality control also becomes possible. A PhD researche r is currently investigating the theoretical implications. The design of a reliable control system using control theory requires a linear description of the relevant processes. A possible linear description of the relevant pr ocesses is presented in this paper.