Djérem (river)
Djérem | ||
Catchment area of the Sanaga with the Djérem and the Lac de Mbakaou (middle slightly right) |
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Data | ||
location | Cameroon | |
River system | Sanaga | |
Drain over | Sanaga → Bay of Bonny | |
origin | Confluence of the source streams near the N 1 between Manbaka and Gombila 6 ° 44 '41 " N , 14 ° 7' 36" O |
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Source height | 1155 m | |
confluence | with the Lom to Sanaga Coordinates: 5 ° 19 ′ 26 ″ N , 13 ° 23 ′ 52 ″ E 5 ° 19 ′ 26 ″ N , 13 ° 23 ′ 52 ″ E |
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Mouth height | 634 m | |
Height difference | 521 m | |
Bottom slope | 1.3 ‰ | |
length | 394 km | |
Catchment area | over 30,000 km² | |
Discharge at the Mbakaou A Eo gauge : 20,200 km² |
NNQ (min. Month Ø) MNQ 1959–1970 MQ 1959–1970 Mq 1959–1970 MHQ 1959–1970 HHQ |
25.2 m³ / s 41 m³ / s 422 m³ / s 20.9 l / (s km²) 1179 m³ / s 2090 m³ / s |
Drain |
MQ |
566 m³ / s |
Left tributaries | Merou | |
Right tributaries | Vina , Meng , Mekay, Mekie | |
Reservoirs flowed through | Lac de Mbakaou | |
Medium-sized cities | Tibati |
The Djérem is a river in Cameroon .
course
It has its source in several headwaters in the Adamaua highlands , near the city of Meiganga . It flows mainly in a south-westerly direction until it flows into the Lac de Mbakaou at Tibati . There it turns to the south-southeast and forms the Sanaga northwest of Deng Deng together with the Lom . The river flows through the Mbam Djerem National Park .
Reservoirs
At Tibati, the Djérem is dammed up to form the Lac de Mbakaou , an artificial reservoir. However, the energy available at the dam is not used to generate electricity. The national energy producer Eneo (formerly AES Sonel) uses the reservoir, in addition to the Bamendjing , the Mapé and other smaller ones, to regulate the amount of water in the Sanaga. This optimizes fluctuations in favor of the electricity generating dams Song Loulou and Édéa near the capital Yaoundé .
Hydrometry
The flow rate of the river was measured in m³ / s at the Mbakaou Reservoir, at about 2/3 of the catchment area.
The construction of the Lac de Mbakaou has a strong effect on the runoff behavior. The diagram below shows the discharge before and after the construction of the reservoir.