FIG. 14: 200 mb streamfunction anomalies during (a) August, (b)
September and (c) October. The contour interval is 5 x 106
m2s-1, with positive (negative) values dashed
and values greater (less) than 5 (-5) x 106
The non-divergent component of the flow is directed along the
streamfunction contours with a speed proportional to the gradient.
Thus, high (low) streamfunction values correspond to high (low)
Anomalies are departures from the 1979-1995 base period means.