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Long-Term Variability of Temperature and 14C in the Gulf Stream: Oceanographic Implications

Published online by Cambridge University Press:  18 July 2016

Ellen M Druffel
Ellen M Druffel*
Affiliation:
Department of Chemistry, Woods Hole Oceanographic Institution Woods Hole, Massachusetts 02543
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Abstract

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Variability in temperature and 14C levels are recorded in coralline aragonite that grew in the Gulf Stream during the past four centuries. In particular, 18O/16O ratios reflect a decrease of ca 1°C in surface water temperature during the latter part of the Little Ice age. 14C levels also rose in the surface waters of the Gulf Stream and in atmospheric CO2 during the Maunder minimum. These observations indicate that ocean circulation may have been significantly different in the North Atlantic around the beginning of the 18th century.

Information

Type
IV. Oceanography
Information
Radiocarbon , Volume 25 , Issue 2: 11th International Radiocarbon Conference , 1983 , pp. 449 - 458
Copyright
Copyright © The American Journal of Science 

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