Eight centuries of North Atlantic Ocean atmosphere variability

Publication Type  Journal Article
Year of Publication  1999
Authors  Black, D. E.; Peterson, L. C.; Overpeck, J. T.; Kaplan, A.; Evans, M. N.; Kashgarian, M.
Journal Title  Science
Volume  286
Issue  5445
Pages  1709-1713
Journal Date  Nov 26
ISBN Number  0036-8075
Accession Number  ISI:000083912200030
Key Words  sea-surface temperature; tropical atlantic; climate-change; last deglaciation; greenland sea; united-states; cariaco basin; ice-age; circulation; model
Abstract  

Climate in the tropical North Atlantic is controlled Largely by variations in the strength of the trade winds, the position of the Intertropical Convergence Zone, and sea surface temperatures. A high-resolution study of Caribbean sediments provides a subdecadally resolved record of tropical upwelling and trade wind Variability spanning the past 825 years. These results confirm the importance of a decadal (12- to 13-year) mode of Atlantic variability believed to be driven by coupled tropical ocean-atmosphere dynamics. Although a well-defined interdecadal mode of variability does not appear to be characteristic of the tropical Atlantic, there is evidence that century-scale variability is substantial. The tropical Atlantic may also have been involved in a major shift in Northern Hemisphere climate variability that took place about 700 years ago.

Notes  

259UKTimes Cited:82Cited References Count:58

URL  <Go to ISI>://000083912200030