Impact of the Westerly Jet on Rainfall/Runoff in the Source Region of the Yangtze River during the Flood Season

Figure 10

Correlation between the I_W and the winds and divergence field (contours) at (a) 200 hPa and (b) 600 hPa. Composite anomalies of the winds and divergence field (contour) at (c) 200 hPa and (d) 600 hPa between the high-I_W and low-I_W conditions. The dark (light) shading in (a) and (b) indicates the correlation coefficients significant at the 99% (95%) confidence level. The shading in (c) and (d) indicates the divergence anomalies significant at the 95% confidence level. The red wind vectors indicate the zonal or meridional wind at the 95% confidence level.

(a)

(b)

(c)

(d)