Gereb Awso

Gereb Awso
Gereb Awso
	Gereb Awso
Coordinates	13°25′47″N 39°33′12″E / 13.4296493°N 39.55336882°E
Type	Freshwater artificial lake
Basin countries	Ethiopia
Surface area	0.0212 km2 (0.0082 sq mi)
Water volume	0.119×106 m3 (96 acre⋅ft)
Surface elevation	2,290 m (7,510 ft)
Settlements	Kwiha
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Gereb Awso is a reservoir located in the Inderta woreda of the Tigray Region in Ethiopia. The earthen dam that holds the reservoir was built in 1998 by SAERT.^[1]

Dam characteristics

Dam height: 10.5 metres
Dam crest length: 196 metres
Spillway width: 3 metres

Capacity

Original capacity: 118944 m³
Dead storage: 3944 m³
Reservoir area: 2.12 ha

Irrigation

Designed irrigated area: 9 ha
Actual irrigated area in 2002: 5 ha

Environment

The catchment of the reservoir is 1.21 km² large, with a perimeter of 4.62 km and a length of 1780 metres. The reservoir suffers from rapid siltation.^[2]^[3] The lithology of the catchment is Agula Shale.^[1] Part of the water that could be used for irrigation is lost through seepage; the positive side-effect is that this contributes to groundwater recharge.^[4]

References

^ ^a ^b De Wit, Joke (2003). Stuwmeren in Tigray (Noord-Ethiopië): kenmerken, sedimentatie en sediment-bronnen. Unpub. M.Sc. thesis. Department of Geography, K.U.Leuven.
^ Nigussie Haregeweyn, and colleagues (2006). "Reservoirs in Tigray: characteristics and sediment deposition problems". Land Degradation and Development. 17: 211–230. doi:10.1002/ldr.698. S2CID 129834993.
^ Vanmaercke, M. and colleagues (2019). "Sediment Yield and Reservoir Siltation in Tigray". Geo-trekking in Ethiopia's Tropical Mountains. GeoGuide. Cham (CH): Springer Nature. pp. 345–357. doi:10.1007/978-3-030-04955-3_23. ISBN 978-3-030-04954-6. S2CID 199112876.
^ Nigussie Haregeweyn, and colleagues (2008). "Sediment yield variability in Northern Ethiopia: A quantitative analysis of its controlling factors". Catena. 75 (1): 65–76. Bibcode:2008Caten..75...65H. doi:10.1016/j.catena.2008.04.011.

[joke-1] De Wit, Joke (2003). Stuwmeren in Tigray (Noord-Ethiopië): kenmerken, sedimentatie en sediment-bronnen. Unpub. M.Sc. thesis. Department of Geography, K.U.Leuven.

[2] Nigussie Haregeweyn, and colleagues (2006). "Reservoirs in Tigray: characteristics and sediment deposition problems". Land Degradation and Development. 17: 211–230. doi:10.1002/ldr.698. S2CID 129834993.

[3] Vanmaercke, M. and colleagues (2019). "Sediment Yield and Reservoir Siltation in Tigray". Geo-trekking in Ethiopia's Tropical Mountains. GeoGuide. Cham (CH): Springer Nature. pp. 345–357. doi:10.1007/978-3-030-04955-3_23. ISBN 978-3-030-04954-6. S2CID 199112876.

[4] Nigussie Haregeweyn, and colleagues (2008). "Sediment yield variability in Northern Ethiopia: A quantitative analysis of its controlling factors". Catena. 75 (1): 65–76. Bibcode:2008Caten..75...65H. doi:10.1016/j.catena.2008.04.011.

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