Long-term variation of the Antarctic Circumpolar Wave
Article first published online: 24 DEC 2002
Copyright 2002 by the American Geophysical Union.
Journal of Geophysical Research: Oceans (1978–2012)
Volume 107, Issue C4, pages SOV 3-1–SOV 3-12, April 2002
How to Cite
Long-term variation of the Antarctic Circumpolar Wave, J. Geophys. Res., 107, 8076, doi:10.1029/2000JC000380, 2002. [printed 107(C4), 2003],
- Issue published online: 24 DEC 2002
- Article first published online: 24 DEC 2002
- Manuscript Accepted: 10 SEP 2001
- Manuscript Revised: 31 MAY 2001
- Manuscript Received: 10 APR 2000
- Antarctic Circumpolar Wave (ACW);
- Climate variability;
- General circulation model (GCM)
 During the period 1968–1999, the character of circum-Antarctic anomalies in sea level pressure, sea ice edge, and sea surface temperature changed substantially. An Antarctic Circumpolar Wave (ACW) is only clearly visible in the period 1985–1994. Before, and perhaps after this, the signal, particularly in sea level pressure, is quite different with no clear sign of precession. Accompanying the change from precessional to nonprecessional modes is a change in the spatial pattern of variability and a change in the predictability of atmospheric anomalies from oceanic forcing. Evidence from general circulation model integration suggests that during the precessional mode of the ACW, there is enhanced predictability, as would be required to support a coupled ocean–atmosphere interaction.