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

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 tempe...

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Bibliographic Details
Main Authors: Jung-hyun Kim A, Norelrimbu A, Stephan J. Lorenz B, Gerrit Lohmann A, Seung-ilnam D, Stefan Schouten E, Carsten Ru Hlemann F, Ralph R. Schneider G
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Pacific
North Atlantic
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.183.4073
http://www.palmod.uni-bremen.de/%7Egerrit/PSFILES/QSR_Kim_etal_2004.pdf
Description
Summary: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. r 2004 Elsevier Ltd. All rights reserved. 1.

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