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Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/11387

Four climate cycles of recurring deep and surface water destabilizations on the Iberian margin

AutorMartrat, Belen; Grimalt, Joan O.; Shackleton, Nicholas J.; Abreu, Lucía de; Hutterli, Manuel A.; Stocker, Thomas F.
Palabras claveCenntenial climate viariability
Bipolar behavior
Climate cycles
Surface water destabilizations
Fecha de publicación14-jun-2007
EditorAmerican Association for the Advancement of Science
CitaciónScience 317(5837): 502-507 (2007)
ResumenCentennial 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.
Descripción6 pages, 3 figures, 1 table.-- PMID: 17569824 [PubMed].-- Printed version published on Jul 27, 2007.
Versión del editorhttp://dx.doi.org/10.1126/science.1139994
ISSN0036-8075 (Print)
1095-9203 (Online)
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