Logiya River

Logiya River
Location
Country	Ethiopia
Regions	Afar, Amhara
Physical characteristics
Source	Ethiopian Highlands
• coordinates	11°42′21″N 39°33′14″E
• elevation	3,392 metres (11,129 ft)
Mouth	Awash River
• location	Near Logiya
• coordinates	11°43′09″N 40°59′58″E
• elevation	391 metres (1,283 ft)
Length	212 km (132 mi)[1]
Basin size	3,520 km^2 (1,360 sq mi)
Discharge
• location	Mouth[1]
• average	11.8 m^3/s (420 cu ft/s)
• minimum	1.09 m^3/s (38 cu ft/s)
• maximum	55.1 m^3/s (1,950 cu ft/s)
Basin features
Progression	Awash → Lake Abbe
River system	Awash Basin
Cities	Logiya
Population	140,000[2]

The Logiya, or Logia, is a river of east-central Ethiopia, a left tributary of the Awash River.

Course

The Logiya rises in the Ethiopian Highlands, then flows eastwards to join the Awash near Semera, below the Tendaho Dam.^[3] It runs through flat lowland areas with mountainous boundaries in the Great Rift Valley of northeastern Ethiopia.

Watershed

The Logiya watershed is part of the Lower Awash River Basin (LARB). The upper part is in the North Wollo Zone of the Amhara Region. Lower down it is in the Afar Region.^[4] The Logiya watershed lies to the west of the Awash River, and covers an area of 3,520 km² (1,360 sq mi).^[1] Elevations range from 384 to 2,487 metres (1,260 to 8,159 ft) above sea level.^[5] The average altitude is 890.6 metres (2,922 ft) above sea level. Mean annual temperature is 20.8 °C (69.4 °F) in the highest parts and 29 °C (84 °F) in the lower part.^[6]

The watershed is mainly arid lowlands, and has fluctuating temperature and rainfall.^[4] Ground cover includes grass steppe, shrub, tree steppe and bare soil with very sparse vegetation.^[7] The watershed suffers from severe degradation of the soil and desertification. However, particularly in the upper regions during the periods of high rainfall, it may be subject to flooding.^[8]

Hydrology

The main rainy season is from June to September. The dry season is from October to January and the small rainy season is from February to May. Mean annual precipitation varies from 1,600 millimetres (63 in) in the highlands to 160 millimetres (6.3 in) in the lowlands.^[6]

See also

• List of rivers of Ethiopia

References

1. Lehner, Bernhard; Verdin, Kristine; Jarvis, Andy (2008-03-04). "New Global Hydrography Derived From Spaceborne Elevation Data". Eos, Transactions American Geophysical Union. 89 (10): 93–94. doi:10.1029/2008eo100001. ISSN 0096-3941.
2. Liu, L., Cao, X., Li, S., & Jie, N. (2023). GlobPOP: A 31-year (1990-2020) global gridded population dataset generated by cluster analysis and statistical learning (1.0) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.10088105
3. OpenStreetMap.
4. Jilo et al. 2019, p. 2.
5. Argaw 2008, p. 94.
6. Jilo et al. 2019, p. 3.
7. Jilo et al. 2019, p. 5.
8. Jilo et al. 2019, pp. 2–3.

Sources

• Jilo, Nura Boru; Gebremariam, Bogale; Harka, Arus Edo; Woldemariam, Gezahegn Weldu; Behulu, Fiseha (2019), "Evaluation of the Impacts of Climate Change on Sediment Yield from the Logiya Watershed, Lower Awash Basin, Ethiopia", Hydrology, 6 (3): 81, doi:10.3390/hydrology6030081
• "Way: Logiya (704159531)", OpenStreetMap, retrieved 2020-12-24
• Argaw, Yidenkachew (June 2008), Flood Frequency Analysis for Lower Awash Subbasin [tributaries from Northern Wollo High Lands] using Swat 2005 Model (PDF) (Thesis), Addis Ababa University, retrieved 2020-12-25