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

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cg.authorship.typesCGIAR and developing country instituteen
cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationAddis Ababa Universityen
cg.contributor.affiliationUniversity of Québecen
cg.contributor.affiliationInternational Livestock Research Instituteen
cg.contributor.affiliationAccelerating Impacts of CGIAR Climate Research for Africaen
cg.contributor.crpClimate Change, Agriculture and Food Security
cg.contributor.donorWorld Banken
cg.coverage.countryEthiopia
cg.coverage.iso3166-alpha2ET
cg.coverage.regionAfrica
cg.coverage.regionEastern Africa
cg.coverage.regionSub-Saharan Africa
cg.creator.identifierAddisu Gezahegn Semie: 0000-0001-5774-7672
cg.creator.identifierGulilat T. Diro: 0000-0001-7037-0806
cg.creator.identifierTeferi Demissie: 0000-0002-0228-1972
cg.creator.identifierYonas: 0000-0002-8000-2668
cg.creator.identifierDr. Binyam Tesfaw Hailu: 0000-0001-8826-0787
cg.identifier.doihttps://doi.org/10.3390/w15183262en
cg.isijournalISI Journalen
cg.issn2073-4441en
cg.issue18en
cg.journalWateren
cg.reviewStatusPeer Reviewen
cg.volume15en
dc.contributor.authorSemie, Addisu Gen
dc.contributor.authorDiro, Gulilat Ten
dc.contributor.authorDemissie, Teferi Dejeneen
dc.contributor.authorYigezu, Yonas Men
dc.contributor.authorHailu, Binyamen
dc.date.accessioned2023-11-27T16:33:27Zen
dc.date.available2023-11-27T16:33:27Zen
dc.identifier.urihttps://hdl.handle.net/10568/134737
dc.titleTowards Improved Flash Flood Forecasting over Dire Dawa, Ethiopia Using WRF-Hydroen
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
dcterms.accessRightsOpen Access
dcterms.audienceAcademicsen
dcterms.audienceCGIARen
dcterms.audienceDevelopment Practitionersen
dcterms.audienceDonorsen
dcterms.audienceNGOsen
dcterms.audiencePolicy Makersen
dcterms.audienceScientistsen
dcterms.available2023-09-14
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
dcterms.extent3262en
dcterms.issued2023-09
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherMDPIen
dcterms.subjectextreme eventsen
dcterms.subjectfloodingen
dcterms.subjectforecastingen
dcterms.subjectflood damageen
dcterms.subjectagricultureen
dcterms.typeJournal Article

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