Evidence From Southern-Ocean Sediments for the Effect of North-Atlantic Deep-Water Flux on Climate

Citation:
Charles, CD, Fairbanks RG.  1992.  Evidence From Southern-Ocean Sediments for the Effect of North-Atlantic Deep-Water Flux on Climate. Nature. 355:416-419.

Date Published:

Jan

Keywords:

circulation, deglaciation, record

Abstract:

The Southern Ocean is perhaps the only region where fluctuations in the global influence of North Atlantic Deep Water (NADW) can be monitored unambiguously in single deep-sea cores. A carbon isotope record from benthic foraminifera in a Southern Ocean core reveals large and rapid changes in the flux of NADW during the last deglaciation, and an abrupt increase in the NADW production rate which immediately preceded large-scale melting of the Northern Hemisphere ice sheets. This sudden strengthening of the NADW thermohaline cell provides strong evidence for the importance of NADW in glacial-interglacial climate change.

Notes:

n/a

Website

DOI:

10.1038/355416a0