IFYGL is a program jointly sponsored by Canadian and U.S. National Committee for International Hydrological Decade for coordinated research into the physical, chemical and biological aspects of Lake Ontario to improve our understanding of the Lake and its basin.

IFYGL is a program jointly sponsored by Canadian and U.S. National Committee for International Hydrological Decade for coordinated research into the physical, chemical and biological aspects of Lake Ontario to improve our understanding of the Lake and its basin.

This book provides essential background knowledge on the development of model-based real-world solutions in the field of control and decision making for water systems. It presents system engineering methods for modelling surface water and groundwater resources as well as water transportation systems (rivers, channels and pipelines). The models in turn provide information on both the water quantity (flow rates, water levels) of surface water and groundwater and on water quality. In addition, methods for modelling and predicting water demand are described. Sample applications of the models are presented, such as a water allocation decision support system for semi-arid regions, a multiple-criteria control model for run-of-river hydropower plants, and a supply network simulation for public services.

The book describes models of aquatic ecosystems, ranging from lakes to estuaries to the deep ocean. It provides a background in the physical and biological processes, numerical methods and elementary ecosystem models. It describes two of the most widely used hydrodynamic models and presents a number of case studies. The practice of modelling in management is discussed.