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dc.contributor.authorZappala, Dario
dc.contributor.authorBarreiro, Marcelo
dc.contributor.authorMasoller Alonso, Cristina
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.identifier.citationZappala, D., Barreiro, M., Masoller, C. Quantifying changes in spatial patterns of surface air temperature dynamics over several decades. "Earth System Dynamics", 18 Abril 2018, vol. 9, núm. 2, p. 383-391.
dc.format.extent9 p.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshClimatic changes
dc.subject.lcshAtmospheric temperature
dc.subject.otherWe study daily surface air temperature (SAT) reanalysis in a grid over the Earth's surface to identify and quantify changes in SAT dynamics during the period 1979–2016. By analysing the Hilbert amplitude and frequency we identify the regions where relative variations are most pronounced (larger than ±50¿% for the amplitude and ±100¿% for the frequency). Amplitude variations are interpreted as due to changes in precipitation or ice melting
dc.subject.otherwhile frequency variations are interpreted as due to a northward shift of the inter-tropical convergence zone (ITCZ) and to a widening of the rainfall band in the western Pacific Ocean. The ITCZ is the ascending branch of the Hadley cell
dc.subject.otherand thus by affecting the tropical atmospheric circulation
dc.subject.otherITCZ migration has far-reaching climatic consequences. As the methodology proposed here can be applied to many other geophysical time series
dc.subject.otherour work will stimulate new research that will advance the understanding of climate change impacts.
dc.titleQuantifying changes in spatial patterns of surface air temperature dynamics over several decades
dc.subject.lemacCanvis climàtics
dc.subject.lemacTemperatura atmosfèrica
dc.contributor.groupUniversitat Politècnica de Catalunya. DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
local.citation.authorZappala, D.; Barreiro, M.; Masoller, C.
local.citation.publicationNameEarth System Dynamics

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