North Pacific and North Atlantic sea-surface temperature variability during the Holocene

Jung-Hyun Kim, Norel Rimbu, Stephan J. Lorenz, Gerrit Lohmann, Seung-Il Nam, Stefan Schouten, Carsten Rühlemann and Ralph R. Schneider

Quat. Sci. Rev., 23, 2141-2154. doi:10.1016/j.quascirev.2004.08.010
 
  Abstract
 
  Holocene climate variability is investigated in the North Pacific and North Atlantic realms, using alkenone-derived sea-surface temperature (SST) records as well as a millennial scale simulation with a coupled atmosphere-ocean general circulation model (AOGCM). The alkenone SST data indicate a temperature increase over almost the entire North Pacific from 7 cal kyr BP to the present. A dipole pattern with a continuous cooling in the northeastern Atlantic and a warming in the eastern Mediterranean Sea and the northern Red Sea is detected in the North Atlantic realm. Similarly, SST variations are opposite in sign between the northeastern Pacific and the northeastern Atlantic. A 2300 year long AOGCM climate simulation reveals a similar SST seesaw between the northeastern Pacific and the northeastern Atlantic on centennial time scales. Our analysis of the alkenone SST data and the model results suggests fundamental inter-oceanic teleconnections during the Holocene.

 

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  a:FB5 Geowissenschaften, Universität Bremen, Klagenfurterstraße, D-28359 Bremen, Germany

b:Max-Planck-Institut für Meteorologie, Modelle und Daten, Bundesstrasse 53, D-20146 Hamburg, Germany

c:Alfred-Wegener-Institut für Polar- und Meeresforschung (AWI), Bussestraße 24, D-27570 Bremerhaven, Germany

d:Petroleum and Marine Resources Division, Korea Institute of Geoscience and Mineral Resources, 305-350 Taejon, Korea

e:Royal Netherlands Institute for Sea Research (NIOZ), P.O. Box 59, 1790 AB, Den Burg, Texel, The Netherlands

f:Bundesanstalt für Geowissenschaften und Rohstoffe, Referat B 3.23?Meeresgeologie, Stilleweg 2, D-30655 Hannover, Germany

g:Département de Géologie et Océanographie, UMR5805-EPOC, CNRS/Université de Bordeaux1, 33405 Talence Cedex, France

Available online 29 September 2004.