1. bookVolume 8 (2013): Issue 1 (June 2013)
Journal Details
License
Format
Journal
eISSN
1338-7278
ISSN
1338-7278
First Published
29 Mar 2013
Publication timeframe
2 times per year
Languages
English
access type Open Access

Role of Infiltration and Saturation Excess in Rainfall-Runoff Modelling in Small Catchments

Published Online: 21 May 2013
Volume & Issue: Volume 8 (2013) - Issue 1 (June 2013)
Page range: 5 - 12
Journal Details
License
Format
Journal
eISSN
1338-7278
ISSN
1338-7278
First Published
29 Mar 2013
Publication timeframe
2 times per year
Languages
English
Abstract

The paper presents the essential differences in small catchment model behaviour depending on the assumed runoff procedure, i.e. infiltration or saturation excess. It suggests an appropriate model structure and a way to obtain the required boundary conditions. In order to design the flood mitigation measures in small catchments, there is a need of reliable prediction of their behaviour. Long time series of data are rather rare here and the simple models are usually not capable to reflect all the necessary variables and their distribution. However, more comprehensive models are usually very demanding with respect to input data. A model of Bykovicky stream catchment (6.3 km2) was built in the physically based distributed model GSSHA. Out of two years of rainfall-runoff data several events were used for model calibration. Gradually the model was changed in order to explain observed data better. First modelling outcomes suggested a significant influence of saturation excess on flood hydrographs in most of the scenarios. In order to reflect this, the model needs to contain groundwater related processes, but the data on groundwater table position was not available. Therefore a simple method how to obtain it was proposed and tested. The paper discusses the achievements of this modelling experiment.

Keywords

[1] DOWNER C., OGDEN F.L. (2004). GSSHA: A model for simulating diverse streamflow generation processes. Journal of Hydrologic Engineering. 9(3), p. 161-174Search in Google Scholar

[2] ČERNOCHOVÁ K. (2011). Hydrologic assessment of Divišovský stream catchment with use ofGSSHA model. (In Czech). Bachelor thesis. Prague: Czech Technical University in Prague.Search in Google Scholar

[3] DAVID V. et al. (2008). Flood Risk and its Control in Small and Medium Catchments. (In Czech). Partial report of research and development project. Prague: FCE CTU in Prague.Search in Google Scholar

[4] DOWNER C., OGDEN F.L. (2002). GSSHA User’s manual, Gridded Surface and SubsurfaceAnalysis. ERDC Technical Report. Vicksburg: Engineer Research and Development Center.Search in Google Scholar

[5] GRAY D.M. (1970). Handbook on the principles of hydrology. National Research Council of Canada, Water Information Center Inc., Water Research Building, Manhasset Isle, Port Washington, NY.Search in Google Scholar

[6] McCUEN R.H. (1997). Hydrologic Analysis and Design. Prentice-Hall.Search in Google Scholar

[7] DUAN Q.Y., GUPTA V.K. & SOROOSHIAN S. (1993). Shuffled Complex Evolution Approach for Effective and Efficient Global Minimization. Journal of optimizatiion theory andapplications. Vol. 76, No. 3, p. 501-52110.1007/BF00939380Search in Google Scholar

[8] NASH J.E., SUTCLIFFE J.V. (1970). River Flow Forecasting Through Conceptual Models Part I - A discussion of Principles. Journal of Hydrology. Vol. 10, Issue 3, p. 282-290.10.1016/0022-1694(70)90255-6Search in Google Scholar

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