DBPapers
DOI: 10.5593/SGEM2016/B31/S12.083

SENSITIVITY ANALYSIS OF PARAMETERS IN WATER QUALITY MODELS OF RIVERS

P. Halaj, L. Jurik, L. Cimova, T. Kaletova, M. Sedmakova
Wednesday 7 September 2016 by Libadmin2016

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, www.sgem.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-61-2 / ISSN 1314-2704, June 28 - July 6, 2016, Book3 Vol. 1, 637-644 pp

ABSTRACT
The article is focused on impact assessment of various parameters and factors on water quality models outputs. The impact of roughness coefficient variation and changes in boundary conditions on changes of outputs generated by HEC-RAS was investigated. Simulation results have showed a various response rate of input parameters on outputs. The strong impact shows roughness coefficient setup. Changes in boundary condition have had less influence on outputs. Relatively strong impact shows the changes of initial state of pollution concentration.

Keywords: sensitivity analysis, water quality modelling, rivers, Hec-Ras