The Okhotsk-Japan Circulation Pattern and the Heavy Rainfall in Beijing in 2012 Summer

Figure 4

500 hPa geopotential height (contour, interval: 40 gpm) and HWAF fields (vector, unit: m²s⁻²) on July 17–25 (a–i), 2012. The thick arch line is the OKJ track, that is, the route of strong wave activity flux from higher latitudes to southern China. The red pentagrams are on behalf of Beijing location.

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