Four Climate Cycles of Recurring Deep and Surface Water Destabilizations on the Iberian Margin
University of Bern · British Antarctic Survey · +4 more institutions
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…
Citation impact
- FWCI
- 19.75
- Percentile
- 100%
- References
- 46
Authors
6- BMBelén Martrat
University of Bern, British Antarctic Survey, University of Cambridge, Institut d'Investigacions Biomèdiques de Barcelona, Instituto de Investigaciones Químicas y Ambientales de Barcelona, National Research Council
- JOJoan O. GrimaltCorresponding
University of Bern, British Antarctic Survey, University of Cambridge, Institut d'Investigacions Biomèdiques de Barcelona, Instituto de Investigaciones Químicas y Ambientales de Barcelona, National Research Council
- NJNicholas J ShackletonCorresponding
University of Bern, British Antarctic Survey, University of Cambridge, Institut d'Investigacions Biomèdiques de Barcelona, Instituto de Investigaciones Químicas y Ambientales de Barcelona, National Research Council
- LDLúcia de Abreu
University of Bern, British Antarctic Survey, University of Cambridge, Institut d'Investigacions Biomèdiques de Barcelona, Instituto de Investigaciones Químicas y Ambientales de Barcelona, National Research Council
- MAM. A. Hutterli
University of Bern, British Antarctic Survey, University of Cambridge, Institut d'Investigacions Biomèdiques de Barcelona, Instituto de Investigaciones Químicas y Ambientales de Barcelona, National Research Council
Topics & keywords
- Geology
- Climatology
- Latitude
- Polar
- Mediterranean climate
- Oceanography
- Physical geography
- Environmental science
- Life below water