Water quality modelling for small river basins

Water quality modelling for small river basins

Water quality modelling in small rivers is often considered unworthy from a practical and economic viewpoint. This paper shows instead that a simple model structure can be set up to describe the stationary water quality in small river basins in terms of carbon and nitrogen compounds, when the use of complex models is unfeasible. In short rivers point and nonpoint sources play a key role in shap...

Water Quality Modelling in Mesoscale and Large River Basins

Contents 1. Introduction 1.1. Dynamical water quality models 1.2. Types of dynamical water quality models 1.3. Levels of model complexity 1.4. Representation of spatial structure 2. Overview of water quality models for the catchment scale 3. Ecohydrological model SWIM – a short description 4. Selected SWIM applications in the Elbe basin 4.1. Case study basin and subbasins 4.2. Model calibration...

Sensitivity and Uncertainty Analysis for River Water Quality Modelling

Uncertainty analysis for model simulations is assuming a growing importance in the field of water quality management. The importance of this concern is provided by recent public awareness over health risks from improper disposal of toxic wastes as well as by the continuing emphasis on risk assessment. The first step in the chain of the risk assessment is the quantification of the error in predi...

River Basins: Water and Complex Adaptive Systems

River water quality modelling for river basin and water resources management with a focus on the Saale River, Germany

This thesis focuses on computer modelling issues such as i) uncertainty, including uncertainty in parameters, data input and model structure, ii) model complexity and how it affects uncertainty, iii) scale, as it pertains to scaling calibrated and validated models up or down to different spatial and temporal resolutions, and iv) transferability of a model to a site of the same scale. The discus...