Investigating the climate change effects on annual average streamflows in the Euphrates-Tigris basin using the climate elasticity method

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dc.authoridAkturk, Gaye/0000-0002-9477-7827
dc.authoridALIVI, Abdulrezzak/0000-0003-2777-5191
dc.contributor.authorAlivi, Abdulrezzak
dc.contributor.authorYildiz, Osman
dc.contributor.authorAkturk, Gaye
dc.date.accessioned2025-01-21T16:41:54Z
dc.date.available2025-01-21T16:41:54Z
dc.date.issued2021
dc.departmentKırıkkale Üniversitesi
dc.description.abstractThis study was conducted to investigate the response of streamflows (Q) to changes in precipitation (P), potential evapotranspiration (E-p) and drought index within the Euphrates-Tigris basin. For this purpose, 37 sub-basins that are not affected by dams were identified within the basin. Here, the sensitivity of annual average streamflows to precipitation, E-p and drought index was evaluated by the climate elasticity method proposed by Schaake [1]. With this method, the average values of the precipitation and E-p sensitivity coefficients of the streamflow (epsilon(P) and epsilon(Ep), respectively) throughout the basin were calculated as 1.50 and -0.50, respectively. Therefore, it is observed that a 10% increase (decrease) in precipitation would lead to an average increase (decrease) of 15% in streamflow, on the other hand, a 10% increase (decrease) in Ep would result in an average decrease (increase) of 5% in streamflow across the basin. Moreover, the average value of sensitivity coefficient of streamflow to drought index (epsilon((sic))) was determined as -0.47, which means that a 10% increase in the drought index will result in an average decrease of 4.7% in streamflow within the basin. Additionally, it is observed that there is a nonlinear inverse correlation between the climate change sensitivity coefficients (i.e., epsilon(P), |epsilon(Ep)| and |epsilon((sic))|) and the flow coefficient (Q/P) values of the sub-basins indicating that the decrease in streamflow would increase the sensitivity of streamflow to climatic changes. Finally, it was determined that there exist relative increases in epsilon(P), |epsilon(Ep)| and |epsilon((sic))| values from high to low elevations across the basin.
dc.identifier.doi10.17341/gazimmfd.739556
dc.identifier.endpage1465
dc.identifier.issn1300-1884
dc.identifier.issn1304-4915
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85107537244
dc.identifier.scopusqualityQ2
dc.identifier.startpage1450
dc.identifier.urihttps://doi.org/10.17341/gazimmfd.739556
dc.identifier.urihttps://hdl.handle.net/20.500.12587/24977
dc.identifier.volume36
dc.identifier.wosWOS:000655278700020
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isotr
dc.publisherGazi Univ, Fac Engineering Architecture
dc.relation.ispartofJournal of The Faculty of Engineering and Architecture of Gazi University
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241229
dc.subjectStreamflow; climate change; climate elasticity method; drought index; the Euphrates-Tigris basin
dc.titleInvestigating the climate change effects on annual average streamflows in the Euphrates-Tigris basin using the climate elasticity method
dc.title.alternativeFırat-Dicle havzasında yıllık ortalama akımlar üzerinde iklim değişikliği etkilerinin iklim elastikiyeti metodu ile incelenmesi
dc.typeArticle

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