Title: The effect of time of concentration and rainfall characteristics on runoff hydrograph in small ungauged catchment

Authors: WACHULEC, K., WAŁĘGA, A., MŁYŃSKI, D.

Keywords: ungauged catchment, time of concentration, land use, SCS-UH model, HEC- -HMS

Abstract: The aim of this paper is to estimate the effect of time of concentration and rainfall characteristics on runoff hydrograph in small ungauged catchment. The analysis were carried out for the catchment of Sidzinka river. This catchment is mostly located in the area of municipalities of Kraków. Time of concentration was calculated by two methods: Kerby-Kirpich and TR-55 procedure. The amount of effective rainfall was calculated by SCS-CN method. The value of CN parameter was estimated by analyzing the Corine Land Cover 2003 base and orthophotomaps. There were assumed four rainfall distribution: block rainfall, front-loaded hyetograph, center-loaded hyetograph and back-loaded hyetograph. All calculations were made with use of HEC-HMS 4.0 program. The obtained results show the diversity in values of peak flows, amount and volume of runoff, depending on the method to calculate Tc. Although the difference between the CN parameter’s values was only 6%, it considerably affected the peak flow values.

APA style references: Wachulec, K., Wałęga, A. & Młyński, D. (2016). The effect of time of concentration and rainfall characteristics on runoff hydrograph in small ungauged catchment. Scientific Review Engineering and Environmental Sciences, 25 (1), 72-82.

APA style citation in text: The first time citation in text: (Wachulec, Wałęga & Młyński, 2016), next citation: (Wachulec et al., 2016)

Chicago style references: Wachulec, Katarzyna, Andrzej Wałęga, Dariusz Młyński. "The effect of time of concentration and rainfall characteristics on runoff hydrograph in small ungauged catchment." Scientific Review Engineering and Environmental Sciences, 71 ser., vol. 25, no 1, (2016): 72-82.

Chicago style citation in text: (Wachulec, Wałęga, and Młyński 2016)

Bibtxt style references: @article{Wachulec_Wałęga_Młyński_2016_PNIKS, author={Wachulec, Katarzyna and Wałęga, Andrzej and Młyński, Dariusz}, language={polish}, title={The effect of time of concentration and rainfall characteristics on runoff hydrograph in small ungauged catchment.}, journal={Scientific Review Engineering and Environmental Sciences}, URL={http://iks.pn.sggw.pl/PN71/A8/art8.pdf}, year={2016}, volume={25 (1)}, number={71}, pages={72-82}}

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