Towards Improved Flash Flood Forecasting over Dire Dawa, Ethiopia Using WRF-Hydro

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cg.authorship.typesCGIAR and developing country instituteen_US
cg.authorship.typesCGIAR and advanced research instituteen_US
cg.contributor.affiliationAddis Ababa Universityen_US
cg.contributor.affiliationUniversity of Québecen_US
cg.contributor.affiliationInternational Livestock Research Instituteen_US
cg.contributor.affiliationAccelerating Impacts of CGIAR Climate Research for Africaen_US
cg.contributor.crpClimate Change, Agriculture and Food Securityen_US
cg.contributor.donorWorld Banken_US
cg.coverage.countryEthiopiaen_US
cg.coverage.iso3166-alpha2ETen_US
cg.coverage.regionAfricaen_US
cg.coverage.regionEastern Africaen_US
cg.coverage.regionSub-Saharan Africaen_US
cg.creator.identifierAddisu Gezahegn Semie: 0000-0001-5774-7672en_US
cg.creator.identifierGulilat T. Diro: 0000-0001-7037-0806en_US
cg.creator.identifierTeferi Demissie: 0000-0002-0228-1972en_US
cg.creator.identifierYonas: 0000-0002-8000-2668en_US
cg.creator.identifierDr. Binyam Tesfaw Hailu: 0000-0001-8826-0787en_US
cg.identifier.doihttps://doi.org/10.3390/w15183262en_US
cg.isijournalISI Journalen_US
cg.issn2073-4441en_US
cg.issue18en_US
cg.journalWateren_US
cg.reviewStatusPeer Reviewen_US
cg.volume15en_US
dc.contributor.authorSemie, Addisu Gen_US
dc.contributor.authorDiro, Gulilat Ten_US
dc.contributor.authorDemissie, Teferi Dejeneen_US
dc.contributor.authorYigezu, Yonas Men_US
dc.contributor.authorHailu, Binyamen_US
dc.date.accessioned2023-11-27T16:33:27Zen_US
dc.date.available2023-11-27T16:33:27Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/134737en_US
dc.titleTowards Improved Flash Flood Forecasting over Dire Dawa, Ethiopia Using WRF-Hydroen_US
dcterms.abstractFlash floods are increasingly frequent worldwide. Recent flooding in eastern Ethiopia resulted in casualties, destruction of property and interruptions of service. National flash flood forecasts made today primarily consider precipitation, putting less emphasis on surface processes. Enhancing accurate flash flood forecasts by accounting for surface processes and hydrological models together with a deeper understanding of heavy precipitation mechanisms is of paramount importance. To this end, an uncoupled WRF-Hydro model was calibrated for eastern Ethiopia to simulate extreme floods. Sensitivity analysis for August 2006 showed that infiltration runoff, hydraulic soil conductivity and saturated volumetric soil moisture with parameter values of 0.1, 1.5 and 1.0 produced realistic streamflow distribution. Extreme floods in March 2005 and April 2007 were further studied. The results showed that WRF-Hydro replicates temporal and spatial patterns well. Analysis using observational/reanalysis data revealed associated physical processes. Precipitation during these events exceeded long-term climatology and spanned wider areas in eastern Ethiopia. These heavy precipitation events are associated with strong upper-level westerly jet streams and rainfall-conducive circulation anomalies at lower levels. Positive outcomes from WRF-Hydro suggest operational implementation for flood monitoring and early warning systems in forecasting centers.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.audienceAcademicsen_US
dcterms.audienceCGIARen_US
dcterms.audienceDevelopment Practitionersen_US
dcterms.audienceDonorsen_US
dcterms.audienceNGOsen_US
dcterms.audiencePolicy Makersen_US
dcterms.audienceScientistsen_US
dcterms.available2023-09-14en_US
dcterms.bibliographicCitationSemie AG, Diro GT, Demissie T, Yigezu YM, Hailu B. 2023. Towards Improved Flash Flood Forecasting over Dire Dawa, Ethiopia Using WRF-Hydro. Water 15(18):3262.en_US
dcterms.extent3262en_US
dcterms.issued2023-09en_US
dcterms.languageenen_US
dcterms.licenseCC-BY-4.0en_US
dcterms.publisherMDPIen_US
dcterms.subjectextreme eventsen_US
dcterms.subjectfloodingen_US
dcterms.subjectforecastingen_US
dcterms.subjectflood damageen_US
dcterms.subjectagricultureen_US
dcterms.typeJournal Articleen_US

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