The Phenomenology of West African Coastal Rainfall Events Based on a New Rain Gauge Network over Abidjan (Côte d’Ivoire)

In the District of Abidjan, flooding typically occurs suddenly during intense rainfall events. The individual event provides basic element for study. Its analysis is required to develop solutions managing impact extreme occurrences. Our study proposes identify events that occurred in Abidjan from a densified network and analyze some their characteristics related amount they provided, duration, level intensity. A total 1240 were identified between 2018 2021 using 21 rain gauges. Rainfall based on criteria such as minimum inter-event time without 30 min, detection threshold 0.02 mm/5 duration min applicable average hyetograph, 1 mm at least one gauge. accumulation, intensity, showed essentially convective, with an more than 2 h 11.30 mm/event. For 70% mixed nature, convective episodes last up 33.33% produce 80% cumulative rainfall. 30-min peak intensities generally occur first half event. Less 13.5% have peaks greater 50 mm/h. probability observing two, three, or four per day high June October, core two rainy seasons.