A spatiotemporal teleconnection study between Peruvian precipitation and oceanic oscillations

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dc.authorid0000-0002-4767-6660en_US
dc.contributor.authorMohammadi, Babak
dc.contributor.authorVaheddoost, Babak
dc.contributor.authorMehr, Ali Danandeh
dc.date.accessioned2021-03-20T20:09:16Z
dc.date.available2021-03-20T20:09:16Z
dc.date.issued2020
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, İnşaat Mühendisliği Bölümüen_US
dc.description.abstractLarge-scale oceanic oscillations and their teleconnections with meteorological events are of great importance in macro-scale climatic studies. In this regard, this study investigates the spatiotemporal teleconnections between four oceanic oscillations, namely North Atlantic Oscillation (NAO), El Nino/Southern Oscillation (ENSO), Atlantic Multi-Decadal Oscillation (AMO), and Pacific Decadal Oscillation (PDO), against Peruvian precipitation patterns during the past 25 years (i.e., 1990-2015). For this purpose, variation in the precipitation pattern at monthly and annual scales as well as the Standardized Precipitation Index (SPI) time series at 1-, 3-, 12-, and 48-month time scales were evaluated at 10 meteorology stations across Peru. Pearson's correlation coefficient and mutual information between the oceanic oscillations and precipitation-born signals were calculated and spatially interpolated using the Kriging method. The results indicated the presence of three major climatic regions in the country. The NAO has the largest correlation with the monthly precipitation. However, the ENSO was found as the main climate driver of extremely wet and extremely dry conditions in the country. The results also demonstrated that the PDO has a higher impact on the annual precipitation pattern, particularly in the southern and eastern parts of the country.en_US
dc.identifier.doi10.1016/j.quaint.2020.09.042en_US
dc.identifier.endpage11en_US
dc.identifier.issn1040-6182
dc.identifier.issn1873-4553
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1en_US
dc.identifier.urihttp://doi.org/10.1016/j.quaint.2020.09.042
dc.identifier.urihttps://hdl.handle.net/20.500.12885/342
dc.identifier.volume565en_US
dc.identifier.wosWOS:000591580600001en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorVaheddoost, Babak
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofQuaternary Internationalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectOceanic oscillationsen_US
dc.subjectPeruen_US
dc.subjectPrecipitationen_US
dc.subjectStandardized precipitation indexen_US
dc.titleA spatiotemporal teleconnection study between Peruvian precipitation and oceanic oscillationsen_US
dc.typeArticleen_US

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