Spatiotemporal variability of four precipitation-based drought indices in Xinjiang, China

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dc.authorid0000-0002-7662-3250
dc.authorscopusid50361553600
dc.authorscopusid57189372549
dc.authorscopusid36005636900
dc.authorscopusid36727052900
dc.authorwosidSahin, Sinan/ABA-6198-2020
dc.contributor.authorLi, Yi
dc.contributor.authorYao, Ning
dc.contributor.authorŞahin, Sinan
dc.contributor.authorAppels, Willemijn M.
dc.date.accessioned2022-05-11T14:26:38Z
dc.date.available2022-05-11T14:26:38Z
dc.date.issued2017
dc.departmentFakülteler, Çorlu Mühendislik Fakültesi, İnşaat Mühendisliği Bölümü
dc.description.abstractGlobal increases in duration and prevalence of droughts require detailed drought characterization at various spatial and temporal scales. In this study, drought severity in Xinjiang, China was investigated between 1961 and 2012. Using meteorological data from 55 weather stations, the UNEP (1993) index (I-A), Erinc's aridity index (I-m), and Sahin's aridity index (I-sh) were calculated at the monthly and annual timescales and compared to the Penman-Monteith based standard precipitation evapotranspiration index (SPEIPM). Drought spatiotemporal variability was analyzed for north (NX), south (SX), and entire Xinjiang (EX). I-m could not be calculated at 51 stations in winter as T-max was below 0. At the monthly timescale, I-A, I-m, and I-sh correlated poorly to SPEIPM because of seasonality and temporal variability, but annual I-A, I-m, and I-sh correlated well with SPEIPM. Annual I-A, I-m, and I-sh showed strong spatial variability. The 15 extreme droughts denoted by monthly SPEIPM occurred in NX but out of phase in SX. Annual precipitation, maximum temperature, and relative and specific humidity increased, while air pressure and potential evapotranspiration decreased over 1961-2012. The resulting increases in the four drought indices indicated that drought severity in Xinjiang decreased, because the local climate became warmer and wetter.
dc.description.sponsorshipChinese National Science Foundations [U1203182, 51579213]; State Foundation for Studying Abroad [201506305014]; China 111 projectMinistry of Education, China - 111 Project [B12007]
dc.description.sponsorshipThis study was financially supported by the Xinjiang Joint Project of the Chinese National Science Foundations (U1203182, 51579213), the State Foundation for Studying Abroad (201506305014), and China 111 project (B12007). We also thank the Meteorological Data Sharing Service Network in China (cdc.nmic.cn) for supplying weather data. The constructive comments of three anonymous reviewers strengthened the analyses of this paper.
dc.identifier.doi10.1007/s00704-016-1827-5
dc.identifier.endpage1034
dc.identifier.issn0177-798X
dc.identifier.issn1434-4483
dc.identifier.issue45385en_US
dc.identifier.scopus2-s2.0-84969794889
dc.identifier.scopusqualityQ2
dc.identifier.startpage1017
dc.identifier.urihttps://doi.org/10.1007/s00704-016-1827-5
dc.identifier.urihttps://hdl.handle.net/20.500.11776/6529
dc.identifier.volume129
dc.identifier.wosWOS:000406123400022
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorŞahin, Sinan
dc.language.isoen
dc.publisherSpringer Wien
dc.relation.ispartofTheoretical and Applied Climatology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectGlobal Drought
dc.subjectClimate-Change
dc.subjectAridity Index
dc.subjectClassification
dc.subjectEvapotranspiration
dc.subjectRegion
dc.subjectTrends
dc.titleSpatiotemporal variability of four precipitation-based drought indices in Xinjiang, China
dc.typeArticle

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