INTEGRATION AND EVALUATION OF A RIVER MODEL, A LAKE MODEL AND AN INFORMATION SYSTEM, WITH RESPECT TO THE REQUIREMENTS OF THE EU WFD

摘要

This study describes and evaluates a set of hydroinformatic tools with respect to the needs of the implementation of the EU Water Framework Directive (WFD). The tools that were applied in the study were; Sobek to handle river processes, MyLake for the lake processes, and ENSIS as a database and presentation system. They were all applied on the Vansj0-Hob01 River Basin, located in the south-eastern part of Norway, where eutrophication was the main environmental problem. The hydroinformatic tools (Sobek-MyLake-ENSIS) seemed to be useful for water management according to important needs given by the WFD. However, a need to extend the system with one or more models to simulate emission/runoff model of nutrients was identified. The given set of tools was applied to analyze the earlier proposed measures for pollution abatement, and concluded that the present definition of 'good ecological status' will be reached only 4-5 times in the simulated 30 years period.