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Discharge dependent pollutant dispersion in rivers : estimation of aggregated dead zone parameters with surrogate data.

Research output: Contribution to journalJournal article

Published

Journal publication date20/04/2006
JournalWater Resources Research
Journal numberW04412
Volume42
Number of pages0
Original languageEnglish

Abstract

Much has been done to mitigate the effects of intermittent discharges of pollutants; however, pollution incidents still occur, and the downstream transport and dispersion of pollutants must be predicted. The application of transient storage models based on the advection dispersion equation is often limited by the strong dependence of the parameters on changes in discharge. In this paper a methodology is outlined for estimating the parameters of the simple aggregated dead zone model using surrogate data derived from continuous water quality measurements such as conductivity, including a full treatment of the errors and prediction uncertainties within a Bayesian framework. This methodology is demonstrated in the prediction of a tracer experiment on a reach of the river Elbe in the Czech Republic.