The month of June marks the beginning of the hydrological year in the Niger basin. Thus, some rainfall was recorded in all compartments of the Basin. These precipitations recorded during the month allowed the flow to increase over the entire Basin.
The releases of Selingué reservoir in Mali and Kainji reservoir in Nigeria are gradually on-going to support the downstream flows.
The data used for the various analyses below came from hydrological observation networks of the National Hydrological Services and Dam Authorities of nine (9) member countries of Niger Basin Authority. (NBA)
The flow analysis situation was carried out by dividing the basin into three (4) sub-catchments also represented with reference gauging stations as follows: Upper Niger at Koulikoro (Mali), Inland Delta at Dire (Mali), Middle Niger at Niamey (Niger) and Lower Niger at Lokoja (Nigeria)

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