Era (reservoir)

Era is a reservoir located in the Atsbi Wenberta woreda of the Tigray Region in Ethiopia. The earthen dam that holds the reservoir was built in 1997 by SAERT.[1]

Era
TypeFreshwater artificial lake
Basin countriesEthiopia
Surface area0.37 km2 (0.14 sq mi)
Water volume1.920000×10^6 m3 (1,556.569 acre⋅ft)
SettlementsAtsbi

Dam characteristics

  • Dam height: 16.73 metres
  • Spillway width: 10 metres

Capacity

  • Original capacity: 1 920 000 m³
  • Dead storage: 480 000 m³
  • Reservoir area: 37 ha

Irrigation

  • Designed irrigated area: 100 ha
  • Actual irrigated area in 2002: 95 ha

Environment

The catchment of the reservoir is 16 km² large. The reservoir suffers from rapid siltation.[2][3] 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]

gollark: Sure. That doesn't mean people know all the causes.
gollark: I don't think it's known at this time. Lingering organ damage, virus sticking around somehow, same sort of thing as "post-viral fatigue" (something something immune system), maybe.
gollark: People have looked into it. It apparently exists. I'm not sure what you want them to do.
gollark: There are a bunch of worrying weird neurological ones.
gollark: But they could just add s and it would be fine.

References

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

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.