Modelling and Simulation of Internal Pollution of Shallow Lakes

Abstract

In this paper results of a water quality modelling framework for riverine shallow lakes are presented. Based on investigations of interrelations between variables of freshwater quality by advanced time series analysis methods a process model for phosphorus remobilisation from lake sediments was developed. For predicting the changing water quality of shallow riverine lakes caused by internal pollution this submodel was included into the eutrophication model HavelMod. Simulations of water quality variables for different river-lake sections as phytoplankton biomass, phosphate phosphorus, ammonia nitrogen and nitrate nitrogen, which are important for water quality management activities, are discussed.