Assessment of the sedimentation and trapping efficiency in dam reservoirs by applying the settling basin framework
Study region: The investigated object is the Lobo Dam reservoir, located in the south part of the Lobo River Basin in west-central Côte d’Ivoire, West Africa. Study focus: Dam reservoirs in tropical climates face rapid siltation and eutrophication challenges, necessitating new analytical solutions t...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Journal of Hydrology: Regional Studies |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581824005214 |
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| author | Bérenger Koffi Koffi Eugène Kouakou Alexis Loukou Brou Martin Sanchez Ouédé Gla Blaise Brice Wawogninlin Coulibaly Franck Hervé Akaffou Michal Habel Amani Michel Kouassi Dibi Brou Kouakou Lazare Kouassi |
| author_facet | Bérenger Koffi Koffi Eugène Kouakou Alexis Loukou Brou Martin Sanchez Ouédé Gla Blaise Brice Wawogninlin Coulibaly Franck Hervé Akaffou Michal Habel Amani Michel Kouassi Dibi Brou Kouakou Lazare Kouassi |
| author_sort | Bérenger Koffi |
| collection | DOAJ |
| description | Study region: The investigated object is the Lobo Dam reservoir, located in the south part of the Lobo River Basin in west-central Côte d’Ivoire, West Africa. Study focus: Dam reservoirs in tropical climates face rapid siltation and eutrophication challenges, necessitating new analytical solutions to understand their capacity to trap sediment inputs. This study presents a hydrosedimentary mathematical model based on the theory of settling basins and Gamma Law approaches to describe the settling velocity of suspended solids. Using field data from the Lobo River reservoir in Côte d′Ivoire. New hydrological insights for the region: The analysis shows that the reservoir's trapping capacity is influenced by settling velocity, critical velocity, shape parameter 1/r, and the Peclet number (Pe). The study found strong synchronization between models for constant settling velocity (CV-NT, CV-CM, CV-Teeter (1986)) and variable settling velocity (VV-NT, VV-CM) with Teeter’s (1986) model. This agreement validates the proposed models. However, for Pe > 4, the numerical values and curves fall outside the validity range of Teeter’s (1986) model, particularly during dry periods.The findings provide crucial insights into the hydrosedimentary dynamics of the Lobo River reservoir, emphasizing the need to account for seasonal variations and hydrological conditions. This research offers valuable guidance for sediment and water resource management, contributing to the sustainability of reservoirs in tropical regions facing similar environmental pressures. |
| format | Article |
| id | doaj-art-b01d50b6a514497ca4b1aa55b93e8fc0 |
| institution | Kabale University |
| issn | 2214-5818 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology: Regional Studies |
| spelling | doaj-art-b01d50b6a514497ca4b1aa55b93e8fc02025-01-22T05:42:20ZengElsevierJournal of Hydrology: Regional Studies2214-58182025-02-0157102172Assessment of the sedimentation and trapping efficiency in dam reservoirs by applying the settling basin frameworkBérenger Koffi0Koffi Eugène Kouakou1Alexis Loukou Brou2Martin Sanchez3Ouédé Gla Blaise4Brice Wawogninlin Coulibaly5Franck Hervé Akaffou6Michal Habel7Amani Michel Kouassi8Dibi Brou9Kouakou Lazare Kouassi10Institut National Polytechnique Félix Houphouët Boigny (INP-HB), BP 1093, Yamoussoukro, Côte d'Ivoire; Corresponding author.Institut National Polytechnique Félix Houphouët Boigny (INP-HB), BP 1093, Yamoussoukro, Côte d'IvoireLaboratory of Science and Technology of Environment, Université Jean Lorougnon Guédé, BP 150, Daloa, Côte d'IvoireNantes Université, UMR 6112 CNRS, LPG (Lab. Planetology & Geodynamics), 2 rue de la Houssinière, BP 92208, Nantes cedex 44322, FranceLaboratory of Science and Technology of Environment, Université Jean Lorougnon Guédé, BP 150, Daloa, Côte d'IvoireLaboratory of Science and Technology of Environment, Université Jean Lorougnon Guédé, BP 150, Daloa, Côte d'IvoireLaboratory of Science and Technology of Environment, Université Jean Lorougnon Guédé, BP 150, Daloa, Côte d'IvoireFacullty of Geographical Sciences, Kazimierz Wielki University, Bydgoszcz 85-033, PolandInstitut National Polytechnique Félix Houphouët Boigny (INP-HB), BP 1093, Yamoussoukro, Côte d'IvoireLaboratory of Science and Technology of Environment, Université Jean Lorougnon Guédé, BP 150, Daloa, Côte d'IvoireLaboratory of Science and Technology of Environment, Université Jean Lorougnon Guédé, BP 150, Daloa, Côte d'IvoireStudy region: The investigated object is the Lobo Dam reservoir, located in the south part of the Lobo River Basin in west-central Côte d’Ivoire, West Africa. Study focus: Dam reservoirs in tropical climates face rapid siltation and eutrophication challenges, necessitating new analytical solutions to understand their capacity to trap sediment inputs. This study presents a hydrosedimentary mathematical model based on the theory of settling basins and Gamma Law approaches to describe the settling velocity of suspended solids. Using field data from the Lobo River reservoir in Côte d′Ivoire. New hydrological insights for the region: The analysis shows that the reservoir's trapping capacity is influenced by settling velocity, critical velocity, shape parameter 1/r, and the Peclet number (Pe). The study found strong synchronization between models for constant settling velocity (CV-NT, CV-CM, CV-Teeter (1986)) and variable settling velocity (VV-NT, VV-CM) with Teeter’s (1986) model. This agreement validates the proposed models. However, for Pe > 4, the numerical values and curves fall outside the validity range of Teeter’s (1986) model, particularly during dry periods.The findings provide crucial insights into the hydrosedimentary dynamics of the Lobo River reservoir, emphasizing the need to account for seasonal variations and hydrological conditions. This research offers valuable guidance for sediment and water resource management, contributing to the sustainability of reservoirs in tropical regions facing similar environmental pressures.http://www.sciencedirect.com/science/article/pii/S2214581824005214Dam reservoir siltationSettling basin theoryPeclet numberGamma distributedSettling velocityLobo River |
| spellingShingle | Bérenger Koffi Koffi Eugène Kouakou Alexis Loukou Brou Martin Sanchez Ouédé Gla Blaise Brice Wawogninlin Coulibaly Franck Hervé Akaffou Michal Habel Amani Michel Kouassi Dibi Brou Kouakou Lazare Kouassi Assessment of the sedimentation and trapping efficiency in dam reservoirs by applying the settling basin framework Journal of Hydrology: Regional Studies Dam reservoir siltation Settling basin theory Peclet number Gamma distributed Settling velocity Lobo River |
| title | Assessment of the sedimentation and trapping efficiency in dam reservoirs by applying the settling basin framework |
| title_full | Assessment of the sedimentation and trapping efficiency in dam reservoirs by applying the settling basin framework |
| title_fullStr | Assessment of the sedimentation and trapping efficiency in dam reservoirs by applying the settling basin framework |
| title_full_unstemmed | Assessment of the sedimentation and trapping efficiency in dam reservoirs by applying the settling basin framework |
| title_short | Assessment of the sedimentation and trapping efficiency in dam reservoirs by applying the settling basin framework |
| title_sort | assessment of the sedimentation and trapping efficiency in dam reservoirs by applying the settling basin framework |
| topic | Dam reservoir siltation Settling basin theory Peclet number Gamma distributed Settling velocity Lobo River |
| url | http://www.sciencedirect.com/science/article/pii/S2214581824005214 |
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