Alkenone-derived sea surface temperature records of three sediment cores from the southern Benguela upwelling system

DOI

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.

Supplement to: Leduc, Guillaume; Herbert, Caren T; Blanz, Thomas; Martinez, Philippe; Schneider, Ralph R (2010): Contrasting evolution of sea surface temperature in the Benguela upwelling system under natural and anthropogenic climate forcings. Geophysical Research Letters, 37, L20705

Identifier
DOI https://doi.org/10.1594/PANGAEA.808648
Related Identifier https://doi.org/10.1029/2010GL044353
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.808648
Provenance
Creator Leduc, Guillaume; Herbert, Caren T; Blanz, Thomas; Martinez, Philippe ORCID logo; Schneider, Ralph R ORCID logo
Publisher PANGAEA
Publication Year 2010
Funding Reference German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 25575884 https://gepris.dfg.de/gepris/projekt/25575884 Integrierte Analyse zwischeneiszeitlicher Klimadynamik
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Language English
Resource Type Supplementary Publication Series of Datasets; Collection
Format application/zip
Size 3 datasets
Discipline Geosciences; Natural Sciences
Spatial Coverage (16.659W, -29.136S, 16.716E, -29.128N)
Temporal Coverage Begin 2003-01-31T09:36:00Z
Temporal Coverage End 2003-01-31T12:50:00Z