Influence of Asian-Pacific Oscillation on Precipitation in Central Eastern China during Autumn (1960–2016)

Figure 5

Regression of (a) sea level pressure (SLP) (contours) and 850-hPa wind (vectors), (b) 500-hPa geopotential height (contours), (c) 200-hPa zonal wind (contours) anomalies, and (d) vertical structure of anomalous geopotential height (contours) averaged over 30°–50°N on the APOI. (e)–(h), same as (a)–(d) but for the CECPI. Solid (dashed) contours indicate positive (negative) values. The wind vector is significant at 95% confidence level and shaded values are significant at 95% (light) and 99% (dark) confidence level from a two-tailed Student's t-test.

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