Hydrological drought variability and its teleconnections with climate indices

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dc.authorscopusid57224483476
dc.authorscopusid36242796800
dc.contributor.authorAbdelkader, Mohamed
dc.contributor.authorYerdelen, Cahit
dc.date.accessioned2023-01-12T19:55:20Z
dc.date.available2023-01-12T19:55:20Z
dc.date.issued2022
dc.departmentN/A/Departmenten_US
dc.description.abstractIn this study, the spatial-temporal variability of hydrological drought in Meric Basin, Turkey, has been examined, and its relationship with global climate oscillations has been explored. Prior to drought analysis, streamflow data gaps were filled, and series homogeneity was examined. The standardized streamflow index (SSFI) was used to detect drought periods from monthly streamflow data of nine stations well spread over the study area. The hydrological drought intensity, magnitude, and duration were investigated using the SSFI time series. The drought variability was assessed by performing trend analysis and wavelet transforms. Trend analysis showed an increase in drought events in the Northern region and a decrease in the Southern region of the basin. Wavelet analysis reveals that the 4-10 year scales explicate the drought series pattern. The identification of climate patterns that are most associated with drought variability is performed via correlation analysis. The investigation showed that distinct climate patterns simultaneously influence drought events. Significantly, the influence of El Nino Southern Oscillation (ENSO), North Atlantic Oscillation (NAO), and Atlantic Multidecadal Oscillation (AMO) is notable. The analysis demonstrated a remarkable correlation between ENSO and SSFI series at the interannual scale (2-8 years). The obtained phase difference suggests that the maximum dry (wet) conditions coincide with La Nina (El Nino) events. In addition, positive NAO phases and negative AMO phases lead to drought occurrence.en_US
dc.identifier.doi10.1016/j.jhydrol.2021.127290
dc.identifier.issn0022-1694
dc.identifier.issn1879-2707
dc.identifier.issn0022-1694en_US
dc.identifier.issn1879-2707en_US
dc.identifier.scopus2-s2.0-85121285648en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.jhydrol.2021.127290
dc.identifier.urihttps://hdl.handle.net/11454/76663
dc.identifier.volume605en_US
dc.identifier.wosWOS:000752453100004en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal Of Hydrologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectDrought variabilityen_US
dc.subjectWavelet analysisen_US
dc.subjectStandardized streamflow indexen_US
dc.subjectTeleconnectionsen_US
dc.subjectNorth-Atlantic Oscillationen_US
dc.subjectStreamflow Variabilityen_US
dc.subjectWavelet Transformen_US
dc.subjectTrend Analysisen_US
dc.subjectMissing Dataen_US
dc.subjectBasinen_US
dc.subjectHomogeneityen_US
dc.subjectPacificen_US
dc.subjectImpactsen_US
dc.subjectTurkeyen_US
dc.titleHydrological drought variability and its teleconnections with climate indicesen_US
dc.typeArticleen_US

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