FIGURE T28. Vertically integrated water
vapor or precipitable water (top) and anomaly (bottom), as determined by
the SSMI (Ferraro et. al, 1996: Bull. Amer. Meteor. Soc., 77,
891-905). In bottom panel, regions with above- (below) normal water
vapor are indicated by dark (light) shading. Units are kg (m)-2.
Anomalies are calculated from the 1987-2010 base period means.