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figure t4

FIGURE T4. Five-month running mean and individual monthly mean ("x"s) of the standardized 850-hPa zonal wind anomaly index in the latitude belt 5N5S for 135E180 (top), 175W140W (middle) and 135W120W (bottom). Anomalies are departures from the 197995 base period means and are normalized by the mean annual standard deviation.The x-axis labels are centered on July. Positive (negative) values indicate easterly (westerly) anomalies.

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