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Title: | Four climate cycles of recurring deep and surface water destabilizations on the Iberian margin |
Authors: | Martrat, Belen CSIC ORCID ; Grimalt, Joan O. CSIC ORCID ; Shackleton, Nicholas J.; Abreu, Lucía de; Hutterli, Manuel A.; Stocker, Thomas F. | Keywords: | Cenntenial climate viariability Bipolar behavior Climate cycles Surface water destabilizations |
Issue Date: | 14-Jun-2007 | Publisher: | American Association for the Advancement of Science | Citation: | Science 317(5837): 502-507 (2007) | Abstract: | Centennial climate variability over the last ice age exhibits clear bipolar behavior. High-resolution analyses of marine sediment cores from the Iberian margin trace a number of associated changes simultaneously. Proxies of sea surface temperature and water mass distribution, as well as relative biomarker content, demonstrate that this typical north-south coupling was pervasive for the cold phases of climate during the past 420,000 years. Cold episodes after relatively warm and largely ice-free periods occurred when the predominance of deep water formation changed from northern to southern sources. These results reinforce the connection between rapid climate changes at Mediterranean latitudes and century-to-millennial variability in northern and southern polar regions. | Description: | 6 pages, 3 figures, 1 table.-- PMID: 17569824 [PubMed].-- Printed version published on Jul 27, 2007. | Publisher version (URL): | http://dx.doi.org/10.1126/science.1139994 | URI: | http://hdl.handle.net/10261/11387 | DOI: | 10.1126/science.1139994 | ISSN: | 0036-8075 | E-ISSN: | 1095-9203 |
Appears in Collections: | (IDAEA) Artículos |
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