Influence of the Bani River on seasonal and inter-annual variability of the Niger River flood in the inner delta in Mali
The inner delta of the Niger River is a Sahelian wetland, the extent of whose floodplain depends on the rainfall over the upper basins of Niger and its main tributary, the Bani River. The climate crisis that began in 1970 has very little influence the date of the flood peak on the upper reaches of the Niger and its main distributary the Diaka. Conversely the influence is very strong on the Bani, at the confluence with the Niger at Mopti and in the downstream delta, with earlier dates of flood peak than before. This is due to the lesser extent of the flooded area during dry years. During wet years, the large amount of lateral overflows slows the spread of the flood, resulting in later dates of maximum flood peak. Furthermore, during wet years prior to 1970 these lateral overflows conferred on the upper delta a self-regulatory character by reducing floods at certain stations.
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Subjects: | B10 - Géographie, P40 - Météorologie et climatologie, crue, inondation, variation saisonnière, changement climatique, précipitation, périodicité, delta, technique de prévision, http://aims.fao.org/aos/agrovoc/c_29686, http://aims.fao.org/aos/agrovoc/c_2980, http://aims.fao.org/aos/agrovoc/c_24894, http://aims.fao.org/aos/agrovoc/c_1666, http://aims.fao.org/aos/agrovoc/c_6161, http://aims.fao.org/aos/agrovoc/c_5708, http://aims.fao.org/aos/agrovoc/c_2170, http://aims.fao.org/aos/agrovoc/c_3041, http://aims.fao.org/aos/agrovoc/c_29740, http://aims.fao.org/aos/agrovoc/c_4540, |
Online Access: | http://agritrop.cirad.fr/579518/ http://agritrop.cirad.fr/579518/7/Influence%20du%20Bani%20sur%20la%20variabilit%20saisonni%20re%20et%20interannuelle.pdf |
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dig-cirad-fr-5795182024-01-28T23:16:56Z http://agritrop.cirad.fr/579518/ http://agritrop.cirad.fr/579518/ Influence of the Bani River on seasonal and inter-annual variability of the Niger River flood in the inner delta in Mali. Zare Aida, Mahé Gil, Paturel Jean-Emmanuel, Barbier Bruno. 2017. Hydrological Sciences Journal, 62 (16) : 2737-2752.https://doi.org/10.1080/02626667.2016.1148816 <https://doi.org/10.1080/02626667.2016.1148816> Influence of the Bani River on seasonal and inter-annual variability of the Niger River flood in the inner delta in Mali Zare, Aida Mahé, Gil Paturel, Jean-Emmanuel Barbier, Bruno eng 2017 Hydrological Sciences Journal B10 - Géographie P40 - Météorologie et climatologie crue inondation variation saisonnière changement climatique précipitation périodicité delta technique de prévision http://aims.fao.org/aos/agrovoc/c_29686 http://aims.fao.org/aos/agrovoc/c_2980 http://aims.fao.org/aos/agrovoc/c_24894 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_6161 http://aims.fao.org/aos/agrovoc/c_5708 http://aims.fao.org/aos/agrovoc/c_2170 http://aims.fao.org/aos/agrovoc/c_3041 fleuve Niger Mali http://aims.fao.org/aos/agrovoc/c_29740 http://aims.fao.org/aos/agrovoc/c_4540 The inner delta of the Niger River is a Sahelian wetland, the extent of whose floodplain depends on the rainfall over the upper basins of Niger and its main tributary, the Bani River. The climate crisis that began in 1970 has very little influence the date of the flood peak on the upper reaches of the Niger and its main distributary the Diaka. Conversely the influence is very strong on the Bani, at the confluence with the Niger at Mopti and in the downstream delta, with earlier dates of flood peak than before. This is due to the lesser extent of the flooded area during dry years. During wet years, the large amount of lateral overflows slows the spread of the flood, resulting in later dates of maximum flood peak. Furthermore, during wet years prior to 1970 these lateral overflows conferred on the upper delta a self-regulatory character by reducing floods at certain stations. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/579518/7/Influence%20du%20Bani%20sur%20la%20variabilit%20saisonni%20re%20et%20interannuelle.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1080/02626667.2016.1148816 10.1080/02626667.2016.1148816 info:eu-repo/semantics/altIdentifier/doi/10.1080/02626667.2016.1148816 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1080/02626667.2016.1148816 |
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B10 - Géographie P40 - Météorologie et climatologie crue inondation variation saisonnière changement climatique précipitation périodicité delta technique de prévision http://aims.fao.org/aos/agrovoc/c_29686 http://aims.fao.org/aos/agrovoc/c_2980 http://aims.fao.org/aos/agrovoc/c_24894 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_6161 http://aims.fao.org/aos/agrovoc/c_5708 http://aims.fao.org/aos/agrovoc/c_2170 http://aims.fao.org/aos/agrovoc/c_3041 http://aims.fao.org/aos/agrovoc/c_29740 http://aims.fao.org/aos/agrovoc/c_4540 B10 - Géographie P40 - Météorologie et climatologie crue inondation variation saisonnière changement climatique précipitation périodicité delta technique de prévision http://aims.fao.org/aos/agrovoc/c_29686 http://aims.fao.org/aos/agrovoc/c_2980 http://aims.fao.org/aos/agrovoc/c_24894 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_6161 http://aims.fao.org/aos/agrovoc/c_5708 http://aims.fao.org/aos/agrovoc/c_2170 http://aims.fao.org/aos/agrovoc/c_3041 http://aims.fao.org/aos/agrovoc/c_29740 http://aims.fao.org/aos/agrovoc/c_4540 |
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B10 - Géographie P40 - Météorologie et climatologie crue inondation variation saisonnière changement climatique précipitation périodicité delta technique de prévision http://aims.fao.org/aos/agrovoc/c_29686 http://aims.fao.org/aos/agrovoc/c_2980 http://aims.fao.org/aos/agrovoc/c_24894 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_6161 http://aims.fao.org/aos/agrovoc/c_5708 http://aims.fao.org/aos/agrovoc/c_2170 http://aims.fao.org/aos/agrovoc/c_3041 http://aims.fao.org/aos/agrovoc/c_29740 http://aims.fao.org/aos/agrovoc/c_4540 B10 - Géographie P40 - Météorologie et climatologie crue inondation variation saisonnière changement climatique précipitation périodicité delta technique de prévision http://aims.fao.org/aos/agrovoc/c_29686 http://aims.fao.org/aos/agrovoc/c_2980 http://aims.fao.org/aos/agrovoc/c_24894 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_6161 http://aims.fao.org/aos/agrovoc/c_5708 http://aims.fao.org/aos/agrovoc/c_2170 http://aims.fao.org/aos/agrovoc/c_3041 http://aims.fao.org/aos/agrovoc/c_29740 http://aims.fao.org/aos/agrovoc/c_4540 Zare, Aida Mahé, Gil Paturel, Jean-Emmanuel Barbier, Bruno Influence of the Bani River on seasonal and inter-annual variability of the Niger River flood in the inner delta in Mali |
description |
The inner delta of the Niger River is a Sahelian wetland, the extent of whose floodplain depends on the rainfall over the upper basins of Niger and its main tributary, the Bani River. The climate crisis that began in 1970 has very little influence the date of the flood peak on the upper reaches of the Niger and its main distributary the Diaka. Conversely the influence is very strong on the Bani, at the confluence with the Niger at Mopti and in the downstream delta, with earlier dates of flood peak than before. This is due to the lesser extent of the flooded area during dry years. During wet years, the large amount of lateral overflows slows the spread of the flood, resulting in later dates of maximum flood peak. Furthermore, during wet years prior to 1970 these lateral overflows conferred on the upper delta a self-regulatory character by reducing floods at certain stations. |
format |
article |
topic_facet |
B10 - Géographie P40 - Météorologie et climatologie crue inondation variation saisonnière changement climatique précipitation périodicité delta technique de prévision http://aims.fao.org/aos/agrovoc/c_29686 http://aims.fao.org/aos/agrovoc/c_2980 http://aims.fao.org/aos/agrovoc/c_24894 http://aims.fao.org/aos/agrovoc/c_1666 http://aims.fao.org/aos/agrovoc/c_6161 http://aims.fao.org/aos/agrovoc/c_5708 http://aims.fao.org/aos/agrovoc/c_2170 http://aims.fao.org/aos/agrovoc/c_3041 http://aims.fao.org/aos/agrovoc/c_29740 http://aims.fao.org/aos/agrovoc/c_4540 |
author |
Zare, Aida Mahé, Gil Paturel, Jean-Emmanuel Barbier, Bruno |
author_facet |
Zare, Aida Mahé, Gil Paturel, Jean-Emmanuel Barbier, Bruno |
author_sort |
Zare, Aida |
title |
Influence of the Bani River on seasonal and inter-annual variability of the Niger River flood in the inner delta in Mali |
title_short |
Influence of the Bani River on seasonal and inter-annual variability of the Niger River flood in the inner delta in Mali |
title_full |
Influence of the Bani River on seasonal and inter-annual variability of the Niger River flood in the inner delta in Mali |
title_fullStr |
Influence of the Bani River on seasonal and inter-annual variability of the Niger River flood in the inner delta in Mali |
title_full_unstemmed |
Influence of the Bani River on seasonal and inter-annual variability of the Niger River flood in the inner delta in Mali |
title_sort |
influence of the bani river on seasonal and inter-annual variability of the niger river flood in the inner delta in mali |
url |
http://agritrop.cirad.fr/579518/ http://agritrop.cirad.fr/579518/7/Influence%20du%20Bani%20sur%20la%20variabilit%20saisonni%20re%20et%20interannuelle.pdf |
work_keys_str_mv |
AT zareaida influenceofthebaniriveronseasonalandinterannualvariabilityofthenigerriverfloodintheinnerdeltainmali AT mahegil influenceofthebaniriveronseasonalandinterannualvariabilityofthenigerriverfloodintheinnerdeltainmali AT patureljeanemmanuel influenceofthebaniriveronseasonalandinterannualvariabilityofthenigerriverfloodintheinnerdeltainmali AT barbierbruno influenceofthebaniriveronseasonalandinterannualvariabilityofthenigerriverfloodintheinnerdeltainmali |
_version_ |
1792498993069031424 |