Analysis on the Extreme Heat Wave over China around Yangtze River Region in the Summer of 2013 and Its Main Contributing Factors

Figure 7

The correlation coefficient distribution between the total HDs in region A and u-component anomaly (m/s) at (a) 250 hPa, (c) 500 hPa, and (e) 700 hPa during 1979–2013 summer, and the distribution of u-component anomaly of (b) 250 hPa, (d) 500 hPa, and (f) 700 hPa in the summer of 2013. In (a, c, and e), the long-term trend is removed, and shaded area denotes the correlation coefficient significant at the 0.05 level.

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