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dc.contributor.authorPyrina, Maria
dc.contributor.authorMoreno Chamarro, Eduardo
dc.contributor.authorWagner, Sebastian
dc.contributor.authorZorita, Eduardo
dc.contributor.otherBarcelona Supercomputing Center
dc.identifier.citationPyrina, M. [et al.]. Surface and tropospheric response of North Atlantic summer climate from paleoclimate simulations of the past millennium. "Atmosphere", 2021, vol. 12, núm. 5, 568.
dc.description.abstractWe investigate the effects of solar forcing on the North Atlantic (NA) summer climate, in climate simulations with Earth System Models (ESMs), over the preindustrial past millennium (AD 850–1849). We use one simulation and a four-member ensemble performed with the MPI-ESM-P and CESM-LME models, respectively, forced only by low-scaling variations in Total Solar Irradiance (TSI). We apply linear methods (correlation and regression) and composite analysis to estimate the NA surface and tropospheric climatic responses to decadal solar variability. Linear methods in the CESM ensemble indicate a weak summer response in sea-level pressure (SLP) and 500-hPa geopotential height to TSI, with decreased values over Greenland and increased values over the NA subtropics. Composite analysis indicates that, during high-TSI periods, SLP decreases over eastern Canada and the geopotential height at 500-hPa increases over the subtropical NA. The possible summer response of SSTs is overlapped by model internal variability. Therefore, for low-scaling TSI changes, state-of-the-art ESMs disagree on the NA surface climatic effect of solar forcing indicated by proxy-based studies during the preindustrial millennium. The analysis of control simulations indicates that, in all climatic variables studied, spurious patterns of apparent solar response may arise from the analysis of single model simulations.
dc.description.sponsorshipThis research partly received external funding from the framework of the European Initial Marie Curie Training network ARAMACC (Annually resolved Archives of Marine Climate Change). This project has received funding from the European Union’s Seventh Framework Programme for research, technological development and demonstration under grant agreement no 604802.
dc.rightsAttribution 3.0 Spain
dc.rightsAttribution 4.0 International (CC BY 4.0)
dc.subjectÀrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències de la terra i de la vida
dc.subject.lcshEarth systems data and models
dc.subject.lcshClimatic changes
dc.subject.lcshNorth Atlantic Region
dc.subject.otherSolar forcing
dc.subject.otherLast millennium
dc.subject.otherPaleoclimate simulations
dc.subject.otherNorth Atlantic
dc.subject.otherSurface climatic response
dc.titleSurface and tropospheric response of North Atlantic summer climate from paleoclimate simulations of the past millennium
dc.subject.lemacSimulacio per ordinador
dc.subject.lemacCanvis climàtics
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)

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Attribution 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution 3.0 Spain