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Otto-Bliesner 1999
Otto-Bliesner, B.L. (1999). El Niño/La Niña and Sahel precipitation during the Middle Holocene. Geophysical Research Letters 26: doi: 10.1029/1998GL900236. issn: 0094-8276.

Simulations with a synchronously coupled atmosphere-land-ocean-sea ice model indicate El Ni¿o/La Ni¿a-like events in the eastern tropical Pacific Ocean during the middle Holocene (6 ka) with similar intensities and frequencies as at present (0 ka). July-August-September Sahel precipitation shifts northward as expected from proxy data. For present-day, interannual-decadal variability of western Sahel precipitation is correlated with both Pacific El Ni¿o/La Ni¿a sea surface temperature (SST) anomalies and the Atlantic dipole. Teleconnections at 6 ka between Sahel precipitation and El Ni¿o/La Ni¿a SST anomalies are absent with tropical Atlantic SSTs asserting a dominant influence. These results illustrate potential problems with using present-day teleconnection patterns in interpreting past climate variability from proxy data. ¿ 1999 American Geophysical Union

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Abstract

Keywords
Global Change, Climate dynamics, Meteorology and Atmospheric Dynamics, Paleoclimatology, Meteorology and Atmospheric Dynamics, Numerical modeling and data assimilation, Information Related to Geologic Time, Cenozoic
Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/
Publisher
American Geophysical Union
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