Dibdibo
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| Dibdibo | |
|---|---|
 | |
  Dibdibo | |
| Coordinates | 14°15′40″N 39°04′53″E / 14.26107719°N 39.08148865°E |
| Type | Freshwater artificial lake |
| Basin countries | Ethiopia |
| Surface area | 0.1724 km2 (0.0666 sq mi) |
| Water volume | 1.0229×106 m3 (829.3 acre⋅ft) |
| Settlements | Inticho |
Dibdibo is a reservoir named after the homonymous village, located in the Inticho woreda of the Tigray Region in Ethiopia. The earthen dam that holds the reservoir was built in 1999 by the Relief Society of Tigray.[1]
Dam characteristics
[edit]- Dam height: 17.8 metres
- Dam crest length: 433 metres
- Spillway width: 15 metres
Capacity
[edit]- Original capacity: 1 022 900 m³
- Dead storage: 153 435 m³
- Reservoir area: 17.24 ha
In 2002, the life expectancy of the reservoir (the duration before it is filled with sediment) was estimated at 22 years.[1]
Irrigation
[edit]- Designed irrigated area: 100 ha
- Actual irrigated area in 2002: 70 ha
Environment
[edit]The catchment of the reservoir is 7 km² large. The reservoir suffers from rapid siltation.[2][3] The lithology of the catchment is Adigrat Sandstone, Enticho Sandstone, tertiary basalt and Precambrian metavolcanics.[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
[edit]- ^ a b c 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.