Evaluating the performance of three different gridded precipitation datasets by comparing the measurement dataset in the Susurluk basin

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dc.authorid0000-0002-0837-9110
dc.contributor.authorSaracoglu, Fevziye Ayca
dc.contributor.authorSaracoglu, Kebir Emre
dc.date.accessioned2026-02-03T12:00:12Z
dc.date.available2026-02-03T12:00:12Z
dc.date.issued2025
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn recent years, the need for long-term precipitation datasets that accurately represent spatiotemporal distribution has significantly increased. To meet this need, various gridded precipitation datasets have been developed. However, before utilizing these datasets, their accuracy must be assessed by comparing them with measurement datasets. For this purpose, the performance of three different monthly gridded precipitation datasets (Climatic Research Unit (CRU), Global Precipitation Climatology Center (GPCC) and University of Delaware (UDEL)) was evaluated in the Susurluk Basin over the period 1966-2017 at monthly, seasonal, and annual scales. The measurement dataset was obtained from six meteorological stations (Band & imath;rma, Bursa, Dursunbey, Keles, Simav, and Tav & scedil;anl & imath;) operated by the Turkish State Meteorological Service. The agreement between gridded and measurement datasets was assessed using statistical indexes such as the Coefficient of Determination (R2), Root Mean Square Error (RMSE), Mean Bias Error (MBE), and Nash-Sutcliffe Efficiency Index (NSE). Among the gridded datasets, GPCC demonstrated the best overall performance, while CRU showed the lowest performance. Additionally, it was observed that the gridded datasets exhibited higher consistency with measurement dataset in low-altitude regions. During wet seasons (winter and autumn), gridded precipitation datasets showed better agreement with the measurement dataset.
dc.identifier.doi10.2339/politeknik.1655165
dc.identifier.issn1302-0900
dc.identifier.issn2147-9429
dc.identifier.urihttps://doi.org/10.2339/politeknik.1655165
dc.identifier.urihttps://hdl.handle.net/20.500.12428/34545
dc.identifier.wosWOS:001498227500001
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.language.isotr
dc.publisherGazi Univ
dc.relation.ispartofJournal of Polytechnic-Politeknik Dergisi
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20260130
dc.subjectPrecipitation
dc.subjectgridded precipitation dataset
dc.subjectperformance evaluation
dc.subjectSusurluk Basin
dc.titleEvaluating the performance of three different gridded precipitation datasets by comparing the measurement dataset in the Susurluk basin
dc.typeArticle

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