Changes in the Austral Winter Hadley Circulation and the Impact on Stationary Rossby Waves Propagation : Figure 4

(a) Divergence

(b) RWS

(c) VS

(d) AV

Figure 4: Anomaly for strong HC cases at 200 hPa in JJA for: (a) divergence, (b) Rossby wave source (RWS), (c) vortex stretching term (VS), (d) advection of absolute vorticity by divergent flow term (AV). The shaded areas represent positive values. The divergence contour plot has a contour interval of s⁻¹. RWS and its terms contour plots have contour interval of s⁻². The symbols C and CS are described in the text.