Articles | Volume 14, issue 12
https://doi.org/10.5194/cp-14-1893-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-14-1893-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
11 Dec 2018
Research article |
| 11 Dec 2018
| 11 Dec 2018
A stalagmite test of North Atlantic SST and Iberian hydroclimate linkages over the last two glacial cycles
Rhawn F. Denniston
CORRESPONDING AUTHOR
Department of Geology, Cornell College, Mount Vernon, Iowa 52314, USA
Amanda N. Houts
Department of Geology, Cornell College, Mount Vernon, Iowa 52314, USA
current address: Department of Earth Sciences, University of New
Hampshire, Durham, New Hampshire 03824, USA
Yemane Asmerom
Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, New Mexico 87131, USA
Alan D. Wanamaker Jr.
Department of Geological and Atmospheric Sciences, Iowa State University, Ames, Iowa 50011, USA
Jonathan A. Haws
Department of Anthropology, University of Louisville, Louisville, Kentucky 40208, USA
Interdisciplinary Center for Archaeology and Evolution of Human Behaviour (ICArEHB), Universidade
do Algarve, Faro, Portugal
Victor J. Polyak
Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, New Mexico 87131, USA
Diana L. Thatcher
Department of Geological and Atmospheric Sciences, Iowa State University, Ames, Iowa 50011, USA
Setsen Altan-Ochir
Department of Geology, Cornell College, Mount Vernon, Iowa 52314, USA
current address: Department of Geosciences, École Normale
Supérieure, PSL Res. Univ., Paris, France
Alyssa C. Borowske
Department of Geology, Cornell College, Mount Vernon, Iowa 52314, USA
current address: Department of Ecology and Evolutionary Biology,
University of Connecticut, Storrs, Connecticut 06269, USA
Sebastian F. M. Breitenbach
Institute for Geology, Mineralogy, and Geophysics, Ruhr-University, 44801 Bochum, Germany
Caroline C. Ummenhofer
Department of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA
Frederico T. Regala
Associação de Estudos Subterrâneos e Defesa do Ambiente, Torres Vedras, Portugal
Interdisciplinary Center for Archaeology and Evolution of Human Behaviour (ICArEHB), Universidade
do Algarve, Faro, Portugal
Michael M. Benedetti
Department of Earth and Ocean Sciences, University of North Carolina Wilmington, Wilmington, North Carolina 28403, USA
Interdisciplinary Center for Archaeology and Evolution of Human Behaviour (ICArEHB), Universidade
do Algarve, Faro, Portugal
Nuno F. Bicho
Interdisciplinary Center for Archaeology and Evolution of Human Behaviour (ICArEHB), Universidade
do Algarve, Faro, Portugal
Data sets
Global Precipitation Climatology Center data Deutscher Wetter Dienst (DWD) http://gpcc.dwd.de
Hurrell North Atlantic Oscillation (NAO) Index Cliamte Data guide https://climatedataguide.ucar.edu/climate-data/hurrell-north-atlantic-oscillation-nao-index-pc-based
Short summary
The sediment deposited off the coast of Portugal includes the remains of marine organisms and pollen washed to sea from Iberia. Analysis of both the pollen and the ocean sediments has revealed that the type and density of vegetation on land changed in concert with shifts in ocean temperature over centuries to tens of millennia. Proxies for climate in Portuguese stalagmites from the last two glacial periods show precipitation was reduced when sea surface temperatures fell.
The sediment deposited off the coast of Portugal includes the remains of marine organisms and...
