The contribution of fine-grained exposure to flood risk assessment along the Niger River

The dataset contains information used for flood risk assessment (FRA) along 58 km of the Niger River upstream of the city of Niamey. We hypothesised that a more detailed definition of assets exposed to flooding than that provided by standard flood risk assessments (FRA) developed in low- and medium-income economies would facilitate risk management. The dataset comprises five shapefiles, two data tables, and two tables of information related to the reference FRAs in low- and middle-income economies, published between 2016 and 2025. The shape files contain: (i) Crops, (ii) Buildings, (iii) Guinean floodplain with 2, 5, 10, 30, 100 years of return period, and (iv) Local floodplain with 2, 5, 10, 30, 100 years of return period. The data tables concern: (i) Sixty-three flood-prone settlements according to the return period and floodable buildings, and (ii) flood risk in monetary terms (EUR) according to the probability of occurrence. The information tables concern: (i) forty river FRAs in low- to middle-income economies, 2016-2025, and (ii) risk mapping implications based on forty river FRAs in low- to middle-income economies, 2016-2025.