Wiesław Gądek
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Wiesław Gądek has a total of 3 co-authors. Here are the top co-authors by number of shared publications:
- Beata Baziak
Cracow University of Technology, Faculty of Environmental Engineering and Energy, Krakow, Poland; Cracow University of Technology, Interdisciplinary Center for Circular Economy, Krakow, Poland
1 shared publication - Tamara Tokarczyk
Institute of Meteorology and Water Management, National Research Institute, Podleśna 61 St., 01-673 Warsaw, Poland
1 shared publication - Wiwiana Szalińska
Institute of Meteorology and Water Management National Research Institute, Warsaw, Poland
1 shared publication
Latest Publications
- Open Access
A Novel Method of Design Flood Hydrographs Estimation for Flood Hazard Mapping
Flood hazard mapping requires knowledge of peak flow as well as flood wave volume and shape, usually represented as a design flood hydrograph (DFH). Statistical approaches for DFH development include nonparametric and parametric methods. The former are developed from long-term flow observations and are thus related to the physio-hydro-climatological catchment properties, but not applicable for ungauged catchments. The alternative parametric DFH can be estimated for any river cross-section, but its links with catchment characteristics are limited. The goal of this study was to introduce a novel hybrid approach for DFH estimation, where the parametric DFH is estimated from the selected properties of the nonparametric DFH (hydrograph width at the levels of 50% and 75% of the peak flow and skewness coefficient) that can be related to the catchment characteristics. The model that offers effective parameter estimation and best correspondence to the reference observation-based hydrograph was selected from among Gamma distribution, Strupczewski and Baptista candidates. The method was validated for 34 catchments of the upper Vistula River and Middle Odra water regions (Poland) based on data from the 1964–2010 period. The Baptista method was found to provide the best model for hybrid DFH construction according to the applied quality measures.
Open AccessA Novel Method of Design Flood Hydrographs Estimation for Flood Hazard Mapping
Flood hazard mapping requires knowledge of peak flow as well as flood wave volume and shape, usually represented as a design flood hydrograph (DFH). Statistical approaches for DFH development include nonparametric and parametric methods. The former are developed from long-term flow observations and are thus related to the physio-hydro-climatological catchment properties, but not applicable for ungauged catchments. The alternative parametric DFH can be estimated for any river cross-section, but its links with catchment characteristics are limited. The goal of this study was to introduce a novel hybrid approach for DFH estimation, where the parametric DFH is estimated from the selected properties of the nonparametric DFH (hydrograph width at the levels of 50% and 75% of the peak flow and skewness coefficient) that can be related to the catchment characteristics. The model that offers effective parameter estimation and best correspondence to the reference observation-based hydrograph was selected from among Gamma distribution, Strupczewski and Baptista candidates. The method was validated for 34 catchments of the upper Vistula River and Middle Odra water regions (Poland) based on data from the 1964–2010 period. The Baptista method was found to provide the best model for hybrid DFH construction according to the applied quality measures.