Difference between revisions of "Publication.10.1126/science.1140461"
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| + | Abstract=A detailed reconstruction of West African monsoon hydrology over the past 155,000 years suggests a close linkage to northern high-latitude climate oscillations. Ba/Ca ratio and oxygen isotope composition of planktonic foraminifera in a marine sediment core from the Gulf of Guinea, in the eastern equatorial Atlantic (EEA), reveal centennial-scale variations of riverine freshwater input that are synchronous with northern high-latitude stadials and interstadials of the penultimate interglacial and the last deglaciation. EEA Mg/Ca-based sea surface temperatures (SSTs) were decoupled from northern high-latitude millennial-scale fluctuation and primarily responded to changes in atmospheric greenhouse gases and low-latitude solar insolation. The onset of enhanced monsoon precipitation lags behind the changes in EEA SSTs by up to 7000 years during glacial interglacial transitions. This study demonstrates that the stadial-interstadial and deglacial climate instability of the northern high latitudes exerts dominant control on the West African monsoon dynamics through an atmospheric linkage.| | ||
| + | Author (L)=S._Weldeab| | ||
| + | Author (L)=D._W._Lea| | ||
| + | Author (L)=R._R._Schneider| | ||
| + | Author (L)=N._Andersen| | ||
CiteKey=weldeab2007155000yearsofwestafricanm| | CiteKey=weldeab2007155000yearsofwestafricanm| | ||
DataUrl=doi.org| | DataUrl=doi.org| | ||
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Journal (L)=Science| | Journal (L)=Science| | ||
Pages (L)=1303-1307| | Pages (L)=1303-1307| | ||
| + | PubDataUrl=doi.org| | ||
PublicationYear (L)=2007| | PublicationYear (L)=2007| | ||
Publisher=American Association for the Advancement of Science (AAAS)| | Publisher=American Association for the Advancement of Science (AAAS)| | ||
| + | Title (L)=155,000 Years of West African Monsoon and Ocean Thermal Evolution| | ||
Title (L)=155,000 years of west African monsoon and ocean thermal evolution| | Title (L)=155,000 years of west African monsoon and ocean thermal evolution| | ||
| + | Type=journal-article| | ||
Type=article| | Type=article| | ||
Volume (L)=316}} | Volume (L)=316}} | ||
