North Atlantic ocean circulation during the last glacial maximum and subsequent meltwater event: A numerical model
Article first published online: 20 SEP 2012
Copyright 1996 by the American Geophysical Union.
Journal of Geophysical Research: Oceans (1978–2012)
Volume 101, Issue C7, pages 16305–16332, 15 July 1996
How to Cite
1996), North Atlantic ocean circulation during the last glacial maximum and subsequent meltwater event: A numerical model, J. Geophys. Res., 101(C7), 16305–16332, doi:10.1029/96JC01079., , , , and (
- Issue published online: 20 SEP 2012
- Article first published online: 20 SEP 2012
- Manuscript Accepted: 1 MAR 1996
- Manuscript Received: 18 JAN 1995
A numerical model that was forced with reconstructed sea surface temperature and sea surface salinity values of the North Atlantic was used to investigate three major states of the North Atlantic ocean circulation since the last glaciation: the modern state, the last glacial maximum (LGM), and an important meltwater event (MWE) near 14,200–13,200 14C yr B.P. Preliminary results of numerical experiments show significant differences of the three outlined modes in the northern North Atlantic and especially in the Norwegian Greenland Seas (NGS). The overturning strength of the North Atlantic salinity conveyor belt and northward heat transport decreased somewhat in the LGM and drastically in the MWE case. Accordingly, the North Atlantic Deep Water production decreased by 30% during the LGM and almost ceased at the MWE. The climatologically most important changes occurred during the MWE and are characterized by a reversal in the circulation of the surface water in the northeastern part of the NGS, implying that the North Atlantic Current did not reach the Norwegian Sea anymore.