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Issue 11 (3) 2012 pp. 57–68

Andrzej Wałęga, Edyta Drożdżal, Michał Piórecki, Radosław Radoń

SOME PROBLEMS OF HYDROLOGY MODELLING OF OUTFLOW FROM UNGAUGED CATCHMENTS WITH ASPECTS OF FLOOD MAPS DESIGN

Keywords: rainfall hyetograph, NRSC-UH model, coefficient of elasticity
Abstract: The article assesses the impact of rainfall hyetograph shape and reaction time of the catchment on flow from the NRCS-UH model. Calculations were performed on the example of Mlynowka stream – left-tributary of the Ropa river, with area equall 18.03 km2. To describe the precipitation method was used Kupczyk and Suligowskiego method, hyetograph recommendations by DVWK and described by function of beta distribution. The sensitivity of the model NRCS-UH for the input parameters were performed using the coefficient of elasticity. The analysis showed that rainfall hyetograph influence on wave of flood. In this study it was found that the largest peak flow obtained when DWVK rainfall hyetograph was use. NRSC-UH model is sensitive to changes in parameter CN – an increase of 1% CN parameter leads to an increased Qmax discharge by 1.1%. Less impact on the output values of the model has a lag time.
pub/11_3_57.pdf Full text available in in Adobe Acrobat format:
http://www.formatiocircumiectus.actapol.net/volume11/issue3/11_3_57.pdf

For citation:

MLA Wałęga, Andrzej, et al. "SOME PROBLEMS OF HYDROLOGY MODELLING OF OUTFLOW FROM UNGAUGED CATCHMENTS WITH ASPECTS OF FLOOD MAPS DESIGN." Acta Sci.Pol. Form. Cir. 11.3 (2012): 57–68.
APA (2012). . Acta Sci.Pol. Form. Cir. 11 (3), 57–68
ISO 690 WAłęGA, Andrzej, et al. SOME PROBLEMS OF HYDROLOGY MODELLING OF OUTFLOW FROM UNGAUGED CATCHMENTS WITH ASPECTS OF FLOOD MAPS DESIGN. Acta Sci.Pol. Form. Cir., 2012, 11.3: 57–68.
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Streszczenie w języku polskim:
http://www.formatiocircumiectus.actapol.net/tom11/zeszyt3/abstrakt-57.html