Monthly Hydrological Bulletin: September 2019

In the month of September, the rainy season was drawing to its end on most part of Niger Basin. The concentration of previous months’ runoff water significantly contributed in increasing flow level in the Niger River’s main course where the flood wave were propagating.

The reservoirs of Sélingué dam in Mali and Kainji dam in Nigeria were being filled up and reached a significant filling level.

The hydrological analysis below covers four hydrometric stations representing four sub-catchments: Koulikoro (Mali) for Upper Niger, Dire (Mali) for Inner Delta, Niamey (Niger) for Middle Niger and Lokoja (Nigeria) for Lower Niger, as shown in figure 1.