Author(s)

I. Tejero, A. Ascorbe, A. Liano, M. Presmanes, J.A. Sainz & J. Suarez

Abstract

Water quality models of the rivers Nalon, Caudal and Nora (Spain) I. Tejero, A. Ascorbe, A. Liano, M. Presmanes, J.A. Sainz, J. Suarez Department of Water and Environment, University of Cantabria, Santander, Spain ABSTRACT The object of this study was the development of models of the water quality of the rives Nalon, Caudal and Nora (Asturias, Spain). The said models will be used in the sewerage planning of the catchment areas. The theoretical model QUAL2E was used. The first approximation to the model is made by using premodels, which are the result of the application of QUAL2E to the rivers without carrying out specific calibration field studies, using data available from other studies or easily obtained data gathered for the purpose. Afterwards, the steps of calibration and validation of the models is done by specific field studies. The premodels are to be used as inexpensive and rapid tools. This study has allowed us to discover the influence of

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