An integrated water resources management approach for the River Spree and its catchment.

In this paper a concept of an integrated water quality model for a river catchment area is presented. The main focus is directed to the development of a water quality module for rivers. Necessary simplifications for calculation of hydraulics and water quality will be explained.

A long-term water quality management model for a lignite mining affected river catchment area.

The paper presents a program system which is used for long-term planning and control of water management of an open-cast mining affected river catchment area. This contribution gives insight into the development of a coupled stochastic water management - water quality model. Simplified algorithms to describe water quality are presented.