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Hydrological bulletins
April 2016 Monthly Bulletin PDF Print E-mail
Tuesday, 17 May 2016 17:54

Hydrological flow situation in the Niger basin during the month of April was characterized by a continued low flows in the Niger basin.

Regards to Dams, the reservoir water releases from Selingué Dam in Mali and Kainji and Jebba Dams in Nigeria continues to support low flows situation.

The flow analysis situation was carried out by dividing the basin into four sub-catchments also represented with reference gauging stations as follows: Upper Niger at Koulikoro (Mali), Inland Delta at Dire (Mali), Middle Niger in Niamey (Niger) and Lower Niger at Lokoja (Nigeria)


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March 2016 Monthly Bulletin PDF Print E-mail
Tuesday, 12 April 2016 13:20

Hydrological flow situation in the Niger basin during the month of March was characterized by a continued low flows in the Niger basin.
Reservoir water releases from Selingué Dam in Mali as well as Kainji and Jebba Dams in Nigeria is on process.
The flow analysis situation was carried out by dividing the basin into four sub-catchments also represented with reference gauging stations as follows: Upper Niger at Koulikoro (Mali), Inland Delta at Dire (Mali), Middle Niger in Niamey (Niger) and Lower Niger at Lokoja (Nigeria)

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November 2015 Monthly Bulletin PDF Print E-mail
Monday, 14 December 2015 07:56

During the month of November, the flow of River Niger was characterized by a low flow situation in all part of the sub-catchment areas, except the Inland Delta at Dire and downstream where the level of water is continuously rising because of the Black flood coming from up stream.

The Sélingué dam in Mali, Kainji, Jebba and Shiroro dams in Nigeria are in filling up situation and have reached an optimum reservoir capacity level.

The flow analysis situation was carried out by dividing the basin into four sub-catchments also represented with reference gauging stations as follows: Upper Niger at Koulikoro (Mali), Inland Delta at Dire (Mali), Middle Niger in Niamey (Niger) and Lower Niger at Lokoja (Nigeria)

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September 2015 Monthly Bulletin PDF Print E-mail
Monday, 12 October 2015 07:24

In September the rainy season draws to its end on most of the Niger Basin. The concentration of the previous month runoffs in the main river has significantly increased the river water level and the rise of the flow is progressing.

The Sélingué dam in Mali, Lagdo dam in Cameroun, Kainji, Jebba and Shiroro dams in Nigeria are in filling up situation and have reached a significant reservoir filling .

The flow analysis situation was carried out by dividing the basin into four sub-catchments also represented with reference gauging stations as follows: Upper Niger at Koulikoro (Mali), Inland Delta at Dire (Mali), Middle Niger in Niamey (Niger) and Lower Niger at Lokoja (Nigeria).

 

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August 2015 Monthly Hydro Bulletin PDF Print E-mail
Friday, 11 September 2015 14:52

The hydrological flow situation in the month of August 2015 was marked by the rise of the water level in all sub-basins of the Niger River basin. The local flood in Niamey observed this month has reached a maximum flow of 2123 m3/s equivalent to a water level of 580 cm on 5th August 2015. The flow situation needs more attention in the monitoring of the water level at hydrometric stations located upstream Niamey, namely stations on tributaries of the right bank of the River Niger which influence more the station of Niamey.
The Sélingué dam in Mali, Lagdo dam in Cameroun, Kainji, Jebba and Shiroro dams in Nigeria are in filling up situation.


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July 2015 Monthly Bulletin PDF Print E-mail
Wednesday, 12 August 2015 08:18

The hydrological flow situation in the month of July 2015 was marked by the rise of the water level in all sub-basins of the Niger River basin. The local flood in Niamey observed this month has already reached a maximum flow of 1400 m3/s equivalent to a water level of 490 cm on 31stJuly 2015. This value is therefore the highest ever recorded during the month of July at this station of Niamey since gage height observations began in 1929. In this period, the flow situation needs more attention in the monitoring of the water level at hydrometric stations located upstream Niamey, namely stations on tributaries of the right bank of the River Niger which influence more the station of Niamey.

The Sélingué dam in Mali, Lagdo dam in Cameroun, Kainji, Jebba and Shiroro dams in Nigeria are in filling up situation.


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Hydrological flow assessment of the Niger Bassin 2014-2015 PDF Print E-mail
Wednesday, 24 June 2015 15:40

The Niger River takes its source in the mountains of Fouta-Djalon in Guinea and crosses successively Mali, Niger, Benin and Nigeria where it’s ended into the Atlantic Ocean after crossing approximately 4200 km. It is the third longer river of Africa, 14th of the world and 9th from the point of view of the size of its catchment area. Its active basin covers a surface of approximately 1,5 million km 2  shared by  nine (9) countries gathered within the Niger Basin Authority (NBA), these are :  Benin, Burkina Faso, Cameroun, Côte d'ivoire, Guinea, Mali, Niger, Nigeria and Chad. The major tributary Benue takes its source in Chad before crossing Cameroun to join the River Niger at Lokoja in Nigeria.

The hydrological year of the Niger River starts on June 1st and ends on May 31st of the following year.  

This hydrological assessment of the Niger River for this 2014/2015 hydrological year state the flow analysis at the representative stations of the basin: Koulikoro (in Mali) for the Upper Niger, Dire for the Inland Delta (in Mali); Niamey for the Middle Niger (in Niger) and Lokoja for Lower Niger (in Nigeria).

Flows monitoring during this 2014-2015 hydrological year was carried out within the framework of the IWRM2/Niger-HYCOS project activities from over hundred  hydrometric stations equipped with data collection platforms (DCP)  Satlink type, some electronic Liminigraphs GSM transmission, BLU radio or simple  Gage plates scales followed by gage readers which transmit data to the national hydrological  services (NHS) and Project Regional Center by GSM, Internet and other classical means of data collection.

Download the Hydrological flow assessment of the Niger Bassin 2014-2015

 
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