Zermou (dry valley)

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Zermou
The course of the Korama with the Zermou (middle)

The course of the Korama with the Zermou (middle)

Data
location Zinder region in Niger
NigerNiger 
origin at Damagaram Takaya
14 ° 5 ′ 13 ″  N , 9 ° 21 ′ 4 ″  E
muzzle in Dogo in the Korama coordinates: 13 ° 24 ′ 54 ″  N , 9 ° 8 ′ 2 ″  E 13 ° 24 ′ 54 ″  N , 9 ° 8 ′ 2 ″  E

length 19.3 km
Discharge at the Zermou gauge MNQ
HHQ 		0 l / s
20 m³ / s
Reservoirs flowed through Kassama Dam , Toumbala Dam

The Zermou is a dry valley in the region of Zinder in Niger .

course

The Zermou runs roughly in a north-south direction. Its total length is 19.29 kilometers. It has its origin in the rocky hill country in the west of the municipality of Damagaram Takaya . There he takes up several side valleys. The Zermou is dammed in the municipality of Gaffati by the Kassama dam and in the municipality of Albarkaram by the Toumbala dam , both of which were built in 2007. The reservoirs are used for irrigation, cattle breeding and fishing. South of the dams, the Zermou runs through the main town of the Zermou municipality of the same name. It crosses then east of the city Mirriah Department , the National Road 1 , crosses the rejection of Guidimouni and finally empties into the community Dogo in the Korama.

Hydrometry

Along with the Machaya, the Zermou is the most important tributary of the Korama . It only carries water in the winter and can then cause dangerous floods , as is usual in the dry valleys in the Sahel zone . The highest values ​​recorded at the measuring station in Zermou are around 20 cubic meters of water per second. As a result of the great drought of the 1970s, the water flow was limited to small, largely isolated ponds, called mares . In the 2010s, the regular water flow increased massively again.

Individual evidence

  1. ↑ a b c d Ibrahim Mamadou, Maman Waziri Mato, Mahaman Nouri Maman Moussa, Moussa Elh Issoufou Assane: Dynamique actuelle et impacts socio-économiques du barrage de Kassama dans la région de Zinder au Niger . In: Revue Ivoirienne des Sciences et Technologie . No. 27 , 2016, ISSN  1813-3290 , p. 105, 108-109 ( researchgate.net [accessed September 30, 2018]).
  2. ↑ a b c d Zibo Zakara, Atahirou Karbo, Jean François Aranyossy: Application des isotopes de l'environnement à l'étude des aquifères des Korama, sud de Zinder (Niger) . In: Les ressources en eau au Sahel. Etudes hydrogéologiques et hydrologiques en Afrique de l'Ouest par les techniques isotopiques . International Atomic Energy Agency (IAEA), Vienna October 1993, p. 97-98 ( naweb.iaea.org [PDF; accessed September 30, 2018]).
  3. ^ Dams of Africa. (xlsx) Food and Agriculture Organization of the United Nations (FAO), accessed on September 23, 2018 .