Regional Flood Frequency Analysis in the Volta River Basin, West Africa
In the Volta River Basin, flooding has been one of the most damaging natural hazards during the last few decades. Therefore, flood frequency estimates are important for disaster risk management. This study aims at improving knowledge of flood frequencies in the Volta River Basin using regional frequ...
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-02-01
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| Series: | Hydrology |
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| Online Access: | http://www.mdpi.com/2306-5338/3/1/5 |
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| author | Kossi Komi Barnabas A. Amisigo Bernd Diekkrüger Fabien C. C. Hountondji |
| author_facet | Kossi Komi Barnabas A. Amisigo Bernd Diekkrüger Fabien C. C. Hountondji |
| author_sort | Kossi Komi |
| collection | DOAJ |
| description | In the Volta River Basin, flooding has been one of the most damaging natural hazards during the last few decades. Therefore, flood frequency estimates are important for disaster risk management. This study aims at improving knowledge of flood frequencies in the Volta River Basin using regional frequency analysis based on L-moments. Hence, three homogeneous groups have been identified based on cluster analysis and a homogeneity test. By using L-moment diagrams and goodness of fit tests, the generalized extreme value and the generalized Pareto distributions are found suitable to yield accurate flood quantiles in the Volta River Basin. Finally, regression models of the mean annual flood with the size of the drainage area, mean basin slope and mean annual rainfall are proposed to enable flood frequency estimation of ungauged sites within the study area. |
| first_indexed | 2024-12-13T01:15:18Z |
| format | Article |
| id | doaj.art-833f2f149d7c419f8b1d9914d2641d18 |
| institution | Directory Open Access Journal |
| issn | 2306-5338 |
| language | English |
| last_indexed | 2024-12-13T01:15:18Z |
| publishDate | 2016-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Hydrology |
| spelling | doaj.art-833f2f149d7c419f8b1d9914d2641d182022-12-22T00:04:21ZengMDPI AGHydrology2306-53382016-02-0131510.3390/hydrology3010005hydrology3010005Regional Flood Frequency Analysis in the Volta River Basin, West AfricaKossi Komi0Barnabas A. Amisigo1Bernd Diekkrüger2Fabien C. C. Hountondji3Graduate Research Program on Climate Change andWater Resources,West African Science Service Center on Climate Change and Adapted Land Use (WASCAL), University of Abomey-Calavi, Cotonou, Abomey-Calavi BP 2008, BeninCSIR-Water Research Institute, Accra P.O. Box M 32, GhanaDepartment of Geography, University of Bonn, Bonn 53115, GermanyUniversity of Parakou, BP 123 Parakou, BeninIn the Volta River Basin, flooding has been one of the most damaging natural hazards during the last few decades. Therefore, flood frequency estimates are important for disaster risk management. This study aims at improving knowledge of flood frequencies in the Volta River Basin using regional frequency analysis based on L-moments. Hence, three homogeneous groups have been identified based on cluster analysis and a homogeneity test. By using L-moment diagrams and goodness of fit tests, the generalized extreme value and the generalized Pareto distributions are found suitable to yield accurate flood quantiles in the Volta River Basin. Finally, regression models of the mean annual flood with the size of the drainage area, mean basin slope and mean annual rainfall are proposed to enable flood frequency estimation of ungauged sites within the study area.http://www.mdpi.com/2306-5338/3/1/5floodVolta River Basinregional frequency analysisL-moments |
| spellingShingle | Kossi Komi Barnabas A. Amisigo Bernd Diekkrüger Fabien C. C. Hountondji Regional Flood Frequency Analysis in the Volta River Basin, West Africa Hydrology flood Volta River Basin regional frequency analysis L-moments |
| title | Regional Flood Frequency Analysis in the Volta River Basin, West Africa |
| title_full | Regional Flood Frequency Analysis in the Volta River Basin, West Africa |
| title_fullStr | Regional Flood Frequency Analysis in the Volta River Basin, West Africa |
| title_full_unstemmed | Regional Flood Frequency Analysis in the Volta River Basin, West Africa |
| title_short | Regional Flood Frequency Analysis in the Volta River Basin, West Africa |
| title_sort | regional flood frequency analysis in the volta river basin west africa |
| topic | flood Volta River Basin regional frequency analysis L-moments |
| url | http://www.mdpi.com/2306-5338/3/1/5 |
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