Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.11765/12181
Weather regimes linked to daily precipitation anomalies in Northern Chile
Full metadata record
DC FieldValueLanguage
dc.contributor.authorMeseguer, Óliveres_ES
dc.contributor.authorCortesi, Nicolaes_ES
dc.contributor.authorGuijarro, José Antonioes_ES
dc.contributor.authorSarricolea, Pabloes_ES
dc.date.accessioned2020-06-24T08:32:19Z-
dc.date.available2020-06-24T08:32:19Z-
dc.date.issued2020-
dc.identifier.citationAtmospheric Research. 2020, 236, p. 104802es_ES
dc.identifier.issn0169-8095-
dc.identifier.urihttp://hdl.handle.net/20.500.11765/12181-
dc.descriptionTítulo del pre-print: Precipitation characterization of northern Chile using weather regimeses_ES
dc.description.abstractNorthern Chile is one of the most arid regions in the world, with precipitation mainly occurring during austral summer, between December and April. The aim of this study is to classify the main weather regimes derived from sea level pressure, surface wind speed, 500 or 250 hPa geopotential heights, in order to measure their influence on precipitation anomalies and determine if they can be considered sources of predictability of rainfall in this region. Four weather regimes were found to optimally describe atmospheric circulation in the study area during 1966-2015 and for each of the four levels described above. Using daily precipitation data from a network of 161 meteorological stations across the region, the rainfall anomalies associated with each weather regime were quantified. They are coherent with the direction of flow derived from pressure and geopotential anomalies, bringing humid air masses from the Amazon Basin or the Pacific. The transitions between the different regimes are also coherent, representing transitions to and from similar regimes. A few negative and significant trends in the persistence of different regimes were detected, most likely linked to the absence of anthropogenic warming in the Antarctic as opposed to the Arctic. Finally, two of the regimes derived from surface wind speed exhibit a negative and significant trend in its frequency of occurrence, determining a precipitation decrease in the south of the study area (28–30°S), which can be compared with the Megadrought experienced in central Chile.es_ES
dc.description.sponsorshipThe authors want to thank the support of the FONDECYT Project 11160059 (Chilean Government), the Climatology Group (2017 SGR 1362, Catalan Government), the Spanish Ministry of Economy and Competitiveness (MINECO) as part of the Juan de la Cierva - Incorporación grant (BOE-A-2010-3694), the New European Wind Atlas (NEWA) project (PCIN-2016-029), the Subseasonal to Seasonal for Energy (S2S4E) project (H2020-SC5-2016-2017), and the CLICES Project (CGL2017-83866-C3-2-R).es_ES
dc.language.isospaes_ES
dc.publisherElsevieres_ES
dc.subjectGeopotential heightes_ES
dc.subjectMegadroughtes_ES
dc.subjectNorthern Chilees_ES
dc.subjectPrecipitationes_ES
dc.subjectWeather regimeses_ES
dc.subjectWind speedes_ES
dc.titleWeather regimes linked to daily precipitation anomalies in Northern Chilees_ES
dc.typeinfo:eu-repo/semantics/preprintes_ES
dc.relation.publisherversionhttps://dx.doi.org/10.1016/j.atmosres.2019.104802es_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/SC5-2016-2017es_ES
Appears in Collections:Artículos científicos 2019-2021


Files in This Item:
  File Description SizeFormat 
meseguer_Precip_O20_p...
3,11 MBAdobe PDFThumbnail
View/Open
Show simple item record



Items in Arcimís are protected by Creative Commons License, unless otherwise indicated.

Arcimís Repository
Nota Legal Contacto y sugerencias