Contrasting evolution of sea surface temperature in the Benguela upwelling system under natural and anthropogenic climate forcings: BENGUELA UPWELLING EVOLUTION

dc.contributor.authorLeduc, Guillaume
dc.contributor.authorHerbert, Caren T
dc.contributor.authorBlanz, Thomas
dc.contributor.authorMartinez, Philippe
dc.contributor.authorSchneider, Ralph
dc.date.accessioned2021-10-08T07:04:07Z
dc.date.available2021-10-08T07:04:07Z
dc.date.issued2010
dc.description.abstractWe present alkenone-derived Sea Surface Temperature (SST) records from three marine cores collected within the southern Benguela Upwelling System (BUS) spanning the last 3 ka. The SST evolution over the last 3 millennia is marked by aperiodic millennial-scale oscillations that broadly correspond to climatic anomalies identified over the North Atlantic region. The BUS SST data further suggest cooling and warming trends opposite to the temperature evolution in the Moroccan upwelling region and in Antarctica. In contrast, the last decades are marked by a cooling of unprecedented magnitude in both the Benguela and Moroccan upwelling systems, which is not observed in the Antarctic record. These contrasted responses in Atlantic upwelling systems triggered by natural and anthropogenic forcings shed light on how different climatic mechanisms are mediated by ocean-atmosphere interactions and transmitted to the geological records of past and present climate changes.
dc.identifier.apacitationLeduc, G., Herbert, C. T., Blanz, T., Martinez, P., & Schneider, R. (2010). Contrasting evolution of sea surface temperature in the Benguela upwelling system under natural and anthropogenic climate forcings: BENGUELA UPWELLING EVOLUTION. <i>Geophysical Research Letters</i>, 37(20), n/a - n/a. http://hdl.handle.net/11427/34432en_ZA
dc.identifier.chicagocitationLeduc, Guillaume, Caren T Herbert, Thomas Blanz, Philippe Martinez, and Ralph Schneider "Contrasting evolution of sea surface temperature in the Benguela upwelling system under natural and anthropogenic climate forcings: BENGUELA UPWELLING EVOLUTION." <i>Geophysical Research Letters</i> 37, 20. (2010): n/a - n/a. http://hdl.handle.net/11427/34432en_ZA
dc.identifier.citationLeduc, G., Herbert, C.T., Blanz, T., Martinez, P. & Schneider, R. 2010. Contrasting evolution of sea surface temperature in the Benguela upwelling system under natural and anthropogenic climate forcings: BENGUELA UPWELLING EVOLUTION. <i>Geophysical Research Letters.</i> 37(20):n/a - n/a. http://hdl.handle.net/11427/34432en_ZA
dc.identifier.issn0094-8276
dc.identifier.issn1944-8007
dc.identifier.ris TY - Journal Article AU - Leduc, Guillaume AU - Herbert, Caren T AU - Blanz, Thomas AU - Martinez, Philippe AU - Schneider, Ralph AB - We present alkenone-derived Sea Surface Temperature (SST) records from three marine cores collected within the southern Benguela Upwelling System (BUS) spanning the last 3 ka. The SST evolution over the last 3 millennia is marked by aperiodic millennial-scale oscillations that broadly correspond to climatic anomalies identified over the North Atlantic region. The BUS SST data further suggest cooling and warming trends opposite to the temperature evolution in the Moroccan upwelling region and in Antarctica. In contrast, the last decades are marked by a cooling of unprecedented magnitude in both the Benguela and Moroccan upwelling systems, which is not observed in the Antarctic record. These contrasted responses in Atlantic upwelling systems triggered by natural and anthropogenic forcings shed light on how different climatic mechanisms are mediated by ocean-atmosphere interactions and transmitted to the geological records of past and present climate changes. DA - 2010 DB - OpenUCT DP - University of Cape Town IS - 20 J1 - Geophysical Research Letters LK - https://open.uct.ac.za PY - 2010 SM - 0094-8276 SM - 1944-8007 T1 - Contrasting evolution of sea surface temperature in the Benguela upwelling system under natural and anthropogenic climate forcings: BENGUELA UPWELLING EVOLUTION TI - Contrasting evolution of sea surface temperature in the Benguela upwelling system under natural and anthropogenic climate forcings: BENGUELA UPWELLING EVOLUTION UR - http://hdl.handle.net/11427/34432 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/34432
dc.identifier.vancouvercitationLeduc G, Herbert CT, Blanz T, Martinez P, Schneider R. Contrasting evolution of sea surface temperature in the Benguela upwelling system under natural and anthropogenic climate forcings: BENGUELA UPWELLING EVOLUTION. Geophysical Research Letters. 2010;37(20):n/a - n/a. http://hdl.handle.net/11427/34432.en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Geological Sciences
dc.publisher.facultyFaculty of Science
dc.sourceGeophysical Research Letters
dc.source.journalissue20
dc.source.journalvolume37
dc.source.paginationn/a - n/a
dc.source.urihttps://dx.doi.org/10.1029/2010GL044353
dc.subject.otherice-age calibration sediments alkenone atlantic africa
dc.titleContrasting evolution of sea surface temperature in the Benguela upwelling system under natural and anthropogenic climate forcings: BENGUELA UPWELLING EVOLUTION
dc.typeJournal Article
uct.type.publicationResearch
uct.type.resourceJournal Article
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