Impact of Climate Change on the Hydrology of the Upper Awash River Basin, Ethiopia

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cg.authorship.typesCGIAR and developing country instituteen
cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationHawassa Universityen
cg.contributor.affiliationInternational Livestock Research Instituteen
cg.contributor.affiliationUniversity College Londonen
cg.contributor.affiliationWorld Agroforestry Centreen
cg.contributor.affiliationUniversity of Fort Hareen
cg.contributor.affiliationStockholm Environment Instituteen
cg.contributor.affiliationCGIAR Research Program on Climate Change, Agriculture and Food Securityen
cg.contributor.crpClimate Change, Agriculture and Food Security
cg.coverage.countryEthiopia
cg.coverage.iso3166-alpha2ET
cg.coverage.regionAfrica
cg.coverage.regionSub-Saharan Africa
cg.coverage.regionEastern Africa
cg.creator.identifierNEGA CHALIE EMIRU: 0000-0003-1302-7088en
cg.creator.identifierJohn Walker Recha: 0000-0002-1146-7197en
cg.creator.identifierJulian R. Thompson: 0000-0002-8927-6462en
cg.creator.identifierAbrham Belay: 0000-0002-9634-5497en
cg.creator.identifierErmias Aynekulu: 0000-0002-1955-6995en
cg.creator.identifierAlen Manyevere: 0000-0002-4756-0895en
cg.creator.identifierTeferi Demissie: 0000-0002-0228-1972en
cg.creator.identifierPhilip Osano: 0000-0002-6065-5151en
cg.creator.identifierJaabir Hussein: 0000-0002-1566-2459en
cg.creator.identifierMikias Biazen Molla: 0000-0002-6694-4579en
cg.creator.identifierGirma Moges Mengistu: 0000-0003-1129-2312en
cg.creator.identifierDawit Solomon: 0000-0002-6839-6801en
cg.identifier.doihttps://doi.org/10.3390/hydrology9010003en
cg.isijournalISI Journalen
cg.issn2306-5338en
cg.issue1en
cg.journalHydrologyen
cg.reviewStatusPeer Reviewen
cg.subject.impactAreaClimate adaptation and mitigation
cg.subject.impactAreaNutrition, health and food security
cg.subject.sdgSDG 2 - Zero hungeren
cg.subject.sdgSDG 13 - Climate actionen
cg.volume9en
dc.contributor.authorEmiru, Nega C.en
dc.contributor.authorRecha, John W.M.en
dc.contributor.authorThompson, Julian R.en
dc.contributor.authorBelay, Abrhamen
dc.contributor.authorAynekulu, Ermiasen
dc.contributor.authorManyevere, Alenen
dc.contributor.authorDemissie, Teferi Dejeneen
dc.contributor.authorOsano, Philip M.en
dc.contributor.authorHussein, Jabiren
dc.contributor.authorMolla, Mikias B.en
dc.contributor.authorMengistu, Girma M.en
dc.contributor.authorSolomon, Dawiten
dc.date.accessioned2022-01-06T13:24:21Zen
dc.date.available2022-01-06T13:24:21Zen
dc.identifier.urihttps://hdl.handle.net/10568/117368
dc.titleImpact of Climate Change on the Hydrology of the Upper Awash River Basin, Ethiopiaen
dcterms.abstractThis study investigated the impacts of climate change on the hydrology of the Upper Awash Basin, Ethiopia. A soil and water assessment tool (SWAT) model was calibrated and validated against observed streamflow using SWAT CUP. The Mann–Kendall trend test (MK) was used to assess climate trends. Meteorological drought (SPEI) and hydrological drought (SDI) were also investigated. Based on the ensemble mean of five global climate models (GCMs), projected increases in mean annual maximum temperature over the period 2015–2100 (compared with a 1983–2014 baseline) range from 1.16 to 1.73 °C, while increases in minimum temperature range between 0.79 and 2.53 °C. Increases in mean annual precipitation range from 1.8% at Addis Ababa to 45.5% over the Hombole area. High streamflow (Q5) declines at all stations except Ginchi. Low flows (Q90) also decline with Q90 equaling 0 m3 s−1 (i.e., 100% reduction) at some gauging stations (Akaki and Hombole) for individual GCMs. The SPEI confirmed a significant drought trend in the past, while the frequency and severity of drought will increase in the future. The basin experienced conditions that varied from modest dry periods to a very severe hydrological drought between 1986 and 2005. The projected SDI ranges from modestly dry to modestly wet conditions. Climate change in the basin would enhance seasonal variations in hydrological conditions. Both precipitation and streamflow will decline in the wet seasons and increase in the dry seasons. These changes are likely to have an impact on agricultural activities and other human demands for water resources throughout the basin and will require the implementation of appropriate mitigation measures.en
dcterms.accessRightsOpen Access
dcterms.available2021-12-23en
dcterms.bibliographicCitationEmiru NC, Recha JW, Thompson JR, Belay A, Aynekulu E, Manyevere A, Demissie TD, Osano PM, Hussein J, Molla MB, Mengistu GM, Solomon D. 2021. Impact of Climate Change on the Hydrology of the Upper Awash River Basin, Ethiopia. Hydrology 9(1):3.en
dcterms.extent3en
dcterms.issued2021-12-23en
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherMDPIen
dcterms.subjectclimate changeen
dcterms.subjecthydrologyen
dcterms.subjectagricultureen
dcterms.subjectfood securityen
dcterms.subjectsoilen
dcterms.subjectwateren
dcterms.typeJournal Article

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