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Hydroclimate Trend Analysis of Upper Awash Basin, Ethiopia

Faculty of Civil and Environmental Engineering, Jimma Institute of Technology, Jimma University, Jimma P.O. Box 378, Ethiopia
Department of Civil Engineering, College of Engineering and Technology, Nekemte Campus, Wollega University, Nekemte P.O Box 395, Ethiopia
Faculty of Civil Engineering and Architecture, West Pomeranian University of Technology in Szczecin, 50 Piastów Ave., 70-311 Szczecin, Poland
Author to whom correspondence should be addressed.
Academic Editor: David Post
Water 2021, 13(12), 1680;
Received: 13 May 2021 / Revised: 11 June 2021 / Accepted: 12 June 2021 / Published: 17 June 2021
The Awash River basin is classified into the upper basin, middle basin, and lower basin. The upper basin is the most irrigated and socio-economically important, wherein early and modern agriculture started. This study aimed to assess the upper basin’s hydroclimate variability under climate change from 1991 to 2015 following the county’s land-use policy change. Distinguished topographical settings, namely, lowland, midland, and highland, are used for upper Awash basin hydroclimate trend analysis. Lowland stations revealed a nonsignificant seasonal and annual increasing trend except for the Autumn season. Midland stations showed a decreased seasonal rainfall. Except for Sendafa, the increased station, the highland area exhibited an annual decreasing trend. The Awash-Hombole and Mojo main tributaries are used for the evaluation of basin streamflow. The Awash-Hombole main tributary resulted in annually growing trends during the summer season. Mojo main tributary resulted in a significantly decreasing trend during the spring, summer, and autumn seasons with a 99% level of significance. Therefore, following the basin’s topographic nature, the change of hydroclimatic elements, mainly of the rainfall and streamflow, is observed. Accordingly, its hydroclimate variated by 11 and 38% with precipitation and streamflow, respectively, from the mean value within the study time series. View Full-Text
Keywords: hydroclimate; upper awash basin; trend analysis; streamflow hydroclimate; upper awash basin; trend analysis; streamflow
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MDPI and ACS Style

Duguma, F.A.; Feyessa, F.F.; Demissie, T.A.; Januszkiewicz, K. Hydroclimate Trend Analysis of Upper Awash Basin, Ethiopia. Water 2021, 13, 1680.

AMA Style

Duguma FA, Feyessa FF, Demissie TA, Januszkiewicz K. Hydroclimate Trend Analysis of Upper Awash Basin, Ethiopia. Water. 2021; 13(12):1680.

Chicago/Turabian Style

Duguma, Fekadu Aduna, Fekadu Fufa Feyessa, Tamene Adugna Demissie, and Krystyna Januszkiewicz. 2021. "Hydroclimate Trend Analysis of Upper Awash Basin, Ethiopia" Water 13, no. 12: 1680.

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