A new approach for characterization of meteorological and hydrological droughts: Cumulative standardized drought index (CSDI)

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dc.contributor.authorKumanlioglu A.A.
dc.date.accessioned2024-07-22T08:02:25Z
dc.date.available2024-07-22T08:02:25Z
dc.date.issued2023
dc.description.abstractIdentifying drought events and their characteristics for a river watershed that provides drinking water for metropolitan centers is crucial to sustaining water resources management. In this study, Cumulative Standardized Drought Index (CSDI) is developed to examine the effect of previous dry or wet periods on the characteristics of the drought event. Meteorological and hydrological droughts of the Gordes and Tahtali watersheds, which provide a significant part of the drinking water of Izmir, Turkey, determined for 1, 3, 6 and 12 month time scale by CSDI. The peak turning points of CSDI according to time show the transition from wet to dry period, whereas the lowest turning points do the transition from dry to wet period. Cumulative sum (CUSUM), Pettitt and means square error (MSE) analyzes are used to determine whether the turning points are significant turning point. As a result of the study, the characteristics of dry events, duration, magnitude and intensity, are determined with CSDI, especially those occurring at short time scales such as 1 and 3 months. In addition, the characteristics of meteorological and hydrological droughts observed at 12 month time scale are determined with the CSDI method and the Run Theory and comparisons were made in the study. As a result of the comparison, it is found that drought events, which seem to be different drought periods, indicate a single period when the effect of the past periods is considered. It is shown that the CSDI method can be used adequately to determine the dry and wet periods and their characteristics of the watersheds. © 2023 Elsevier Ltd
dc.identifier.DOI-ID10.1016/j.pce.2023.103420
dc.identifier.issn14747065
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/11855
dc.language.isoEnglish
dc.publisherElsevier Ltd
dc.subjectGordes
dc.subjectIzmir [Turkey]
dc.subjectIzmir [Turkey]
dc.subjectManisa
dc.subjectTahtali Lake
dc.subjectTurkey
dc.subjectPotable water
dc.subjectTime measurement
dc.subjectWater resources
dc.subjectWatersheds
dc.subjectCumulative standardized drought index
dc.subjectDrought index
dc.subjectDry periods
dc.subjectHydrological droughts
dc.subjectMeteorological drought
dc.subjectNew approaches
dc.subjectRiver watersheds
dc.subjectTime-scales
dc.subjectTurning-points
dc.subjectWet period
dc.subjectdrinking water
dc.subjectdrought
dc.subjecterror analysis
dc.subjectmeteorology
dc.subjectmetropolitan area
dc.subjectwater management
dc.subjectwatershed
dc.subjectDrought
dc.titleA new approach for characterization of meteorological and hydrological droughts: Cumulative standardized drought index (CSDI)
dc.typeArticle

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