Cause Analysis on Eastward Movement of Southwest China Vortex and Its Induced Heavy Rainfall in South China

Figure 14

Distribution of moist helicity divergence (shaded in 10⁻¹¹ Pa/s³) at 700 hPa, 850 hPa, and 925 hPa averaged over (a), (b), and (c): 12 UTC, June 10-00 UTC, June 11; (d), (e), and (f): 00 UTC, June 11-00 UTC, June 12, (g), (h), and (i): 00 UTC, June 12-00 UTC, June 13; and (j), (k), and (l): 00 UTC, June 13-00 UTC, June 14, 2008.

(a) 700 hPa

(b) 850 hPa

(c) 925 hPa

(d) 700 hPa

(e) 850 hPa

(f) 925 hPa

(g) 700 hPa

(h) 850 hPa

(i) 925 hPa

(j) 700 hPa

(k) 850 hPa

(l) 925 hPa