During the month of December, the decrease in flows continued at the level of the Upper Niger, Inner Delta and Lower Niger sub-basins. On the other hand, in the sub-basin of the Middle Niger, there is a rise in water levels due to the influence of the Guinean flood.
The Selingué dams in Mali and Kainji in Nigeria have begun gradual releases to support 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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