Contrasting evolution of sea surface temperature in the Benguela upwelling system under natural and anthropogenic climate forcings: BENGUELA UPWELLING EVOLUTION
dc.contributor.author | Leduc, Guillaume | |
dc.contributor.author | Herbert, Caren T | |
dc.contributor.author | Blanz, Thomas | |
dc.contributor.author | Martinez, Philippe | |
dc.contributor.author | Schneider, Ralph | |
dc.date.accessioned | 2021-10-08T07:04:07Z | |
dc.date.available | 2021-10-08T07:04:07Z | |
dc.date.issued | 2010 | |
dc.description.abstract | 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. | |
dc.identifier.apacitation | Leduc, 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/11427/34432 | en_ZA |
dc.identifier.chicagocitation | Leduc, 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/11427/34432 | en_ZA |
dc.identifier.citation | Leduc, 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/11427/34432 | en_ZA |
dc.identifier.issn | 0094-8276 | |
dc.identifier.issn | 1944-8007 | |
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.uri | http://hdl.handle.net/11427/34432 | |
dc.identifier.vancouvercitation | Leduc 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.iso | eng | |
dc.publisher.department | Department of Geological Sciences | |
dc.publisher.faculty | Faculty of Science | |
dc.source | Geophysical Research Letters | |
dc.source.journalissue | 20 | |
dc.source.journalvolume | 37 | |
dc.source.pagination | n/a - n/a | |
dc.source.uri | https://dx.doi.org/10.1029/2010GL044353 | |
dc.subject.other | ice-age calibration sediments alkenone atlantic africa | |
dc.title | Contrasting evolution of sea surface temperature in the Benguela upwelling system under natural and anthropogenic climate forcings: BENGUELA UPWELLING EVOLUTION | |
dc.type | Journal Article | |
uct.type.publication | Research | |
uct.type.resource | Journal Article |
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