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| Titel |
A model based on dimensional analysis for prediction of nitrogen and phosphorus concentrations at the river station Ižkovce, Slovakia |
| VerfasserIn |
M. Zeleňáková, M. Čarnogurská, M. Šlezingr, D. Słyś, P. Purcz |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 17, no. 1 ; Nr. 17, no. 1 (2013-01-22), S.201-209 |
| Datensatznummer |
250017685
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| Publikation (Nr.) |
 copernicus.org/hess-17-201-2013.pdf |
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| Zusammenfassung |
| The aim of this paper is to develop a model for pollutant concentration
prediction in a stream. The developed model that determines nitrogen and
phosphorus concentrations in a river is based on a dimensional analysis.
Application of dimensional analysis to water quality modelling is presented,
pointing out possibilities of applying this methodology in water quality
research. We investigate how dimensional analysis can be applied to water
quality modelling and which benefits it can bring to researchers in this
area. For modelling water quality in a water stream it is essential to know
the parameters that influence water quality. The relevant parameters are
flow of water in the river (discharge), its catchment area, velocity of
water in the stream, temperature of water, temperature of air and measured
concentrations of the pollutant – nitrogen and phosphorus. A sensitivity
analysis shows that the concentration of pollutant in water stream is
sensitive to changes in both water and air temperatures. The model performs
well when average values are used; the prediction error increases when the
single concentration values are considered. The model was developed,
calibrated and evaluated using measured data from the river station
Ižkovce, River Laborec in eastern Slovakia. |
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