Rainfall risk over the city of Abidjan (Côte d'Ivoire) : first contribution of the joint analysis of daily rainfall from a historical record and a recent network of rain gauges

2024

Article référencé dans le Web of Science WOS:001695293600039

Yao C., Kacou M., Koffi E.S., Dao A., Dutremble C., Guilliod Maurice, Kamagaté B., Perrin Jean-Louis, Salles C., Neppel L., Paturel Jean-Emmanuel, Zahiri E.P., Séguis Luc

Cudennec C. (ed.), Grimaldi S. (ed.), IAHS2022 - Hydrological sciences in the Anthropocene

Proceedings of IAHS, 2024, 385, 259-265 ISSN 2199-899X

Scientific Assembly of the International Association of Hydrological Sciences, 11., Montpellier (FRA), 2022/05/29-2022/06/03

Every year, rains cause material damage and human losses, in Abidjan (Côte d'Ivoire). The objective of this study is to contribute to the characterization of the rain hazard in the District of Abidjan. The available data are made up of daily rainfall from a historical station 'Abidjan airport' (1961-2014) and an academic network of rain gauges (21) progressively implemented in Abidjan since 2015. A descriptive analysis (date of occurrence, rainfall depth, mean wet days intensity and number of rainy days) on the Highest Cumulative Rainfall Periods (HCRP: 60 d) is conducted on the long-term station. The periods of highest risk of flooding during the long and short rainy seasons are characterized. The Experimental variograms of extreme rainfalls derived from the current network, allow to evaluate their extensions according to the rainy season.

Mécanisme du cycle de l'eau [062MECEAU]

Fonds IRD [F B010090864]

fdi:010090864