FIGURE T23. Mean (top) and anomalous (bottom) 200-hPa divergence CDAS/Reanalysis). Contour interval is 1 x 10^-6 s^-1. Positive values (divergence) are indicated by solid contours and dark shading. Negative values (convergence) are indicated by dashed contours and light shading. Values exceeding ±1 are shaded. Anomalies are departures from the 1981-2010 base period monthly means.