High and low NAO Gulf
Stream transport: Annual mean Gulf
Stream transport estimates across cross-sections at
each latitude from 27¡N to 35¡N (bottom panel) and at each longitude from 75¡W to 50¡W (top panel).
The point of separation is shown by black solid line. The high (low) NAO transport
estimates are shown with dark bars and associated errors are depicted with blue (red) lines.
Observations are shown as black dots and obtained from estimates made by Leaman et al.,
(1987), Leaman et al., (1989), Halkin
and Rossby, (1985), Johns et al., (1995) and Hogg (1992) at
27¡N, 29¡N, 73¡W, 68¡W, 60¡W, and 55¡W
respectively. Model results are seen to
underestimate the data values.