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

<div>The anomaly of 500 hPa average geopotential height (gpm, solid line) and the total HDs (days) of observation stations (bar) in region A in the summer of 1979–2013. The total HDs are reduced 100 times.</div>

Advances in Meteorology

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Figure 2

Figure 2: Analysis on the Extreme Heat Wave over China around Yangtze River Region in the Summer of 2013 and Its Main Contributing Factors 