Zare A. auteur aut IRD Mahé Gil auteur aut IRD Paturel Jean-Emmanuel auteur aut IRD Barbier B. auteur aut IRD text journalArticle fre text/pdf born digital access 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 smaller 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. specialized flood peak occurrence date climatic variability Bani inner delta Niger River MALI NIGER COURS D'EAU BANI COURS D'EAU 062 62 16 2737-2752 2017 0262-6667 https://www.documentation.ird.fr/hor/fdi:010071996 10.1080/02626667.2016.1148816 0262-6667 [F B010071996] https://www.documentation.ird.fr/hor/fdi:010071996 https://www.documentation.ird.fr/intranet/publi/2018/01/010071996.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2018-02-05 2023-07-11 fdi:010071996 fre