FIG. 54. 200-hPa streamfunction (contours) and
anomalies (shading) during (a) July–September 1997, (b) July–September 1998 and
(c) July–September 1999. Units are 1.0 x 106m2s-1. Contour interval is 10. Anomalies
are departures from the 1979–95 base period means.
