Critical droughts extracted from dry periods

Basit Öğe Kaydı
dc.contributor.authorCavus, Yonca
dc.contributor.authorAksoy, Hafzullah
dc.date.accessioned2026-01-31T15:04:25Z
dc.date.available2026-01-31T15:04:25Z
dc.date.issued2025
dc.departmentİstanbul Beykent Üniversitesi
dc.description.abstractDifferently from common definitions, we distinguish droughts from dry periods in this study. From the dry periods, we extract subperiods of various durations changing from one month to the dry period length. Each subperiod is called a drought, and the most severe drought (with maximum severity or intensity) of each duration is defined critical drought. These newly defined concepts of this study were tested based on the 12-month timescale standardized precipitation index calculated from monthly precipitation data of two meteorological stations in Seyhan River Basin, Turkey. Frequency analysis was applied on the critical drought intensity for each drought duration separately. Results showed that statistical characteristics (duration, severity, intensity and frequency) of dry periods and critical droughts were different from each other. Critical droughts were more intense than the dry periods and their intensity increased as their duration decreased. The Generalized Extreme Value was confirmed as the best-fit probability distribution function of the critical drought intensity in majority. By extracting droughts from the dry periods instead of taking a dry period as one single drought, high number of short and intense critical droughts were deciphered that are masked otherwise within dry periods. These frequent droughts may have higher negative impact on water-dependent economic sectors and society if their timing of occurrence coincides with the season when the water demand is peaking. Therefore, extraction of critical droughts from dry periods is a substantial achievement of this study as the negative impact of drought is often related to its intensity along with its severity and duration. © The Author(s), under exclusive licence to Springer Nature B.V. 2024.
dc.description.sponsorshipDeutscher Akademischer Austauschdienst, DAAD, (91772148); Deutscher Akademischer Austauschdienst, DAAD
dc.identifier.doi10.1007/s11069-024-06947-w
dc.identifier.endpage3957
dc.identifier.isbn9780521372954
dc.identifier.isbn9780521378895
dc.identifier.isbn0521378893
dc.identifier.isbn052137295X
dc.identifier.issn0921-030X
dc.identifier.issue4
dc.identifier.scopus2-s2.0-105002943999
dc.identifier.scopusqualityQ1
dc.identifier.startpage3939
dc.identifier.urihttps://doi.org/10.1007/s11069-024-06947-w
dc.identifier.urihttps://hdl.handle.net/20.500.12662/10540
dc.identifier.volume121
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer Science and Business Media B.V.
dc.relation.ispartofNatural Hazards
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_Scopus_20260128
dc.subjectCritical drought
dc.subjectDrought
dc.subjectDry period
dc.subjectFrequency analysis
dc.subjectGeneralized extreme value
dc.subjectStandardized precipitation index
dc.titleCritical droughts extracted from dry periods
dc.typeArticle

Dosyalar

Koleksiyon

Scopus İndeksli Yayınlar Koleksiyonu