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figure t1

FIGURE T1. Five-month running mean of the Southern Oscillation Index (SOI) (top), sea-level pressure anomaly (hPa) at Darwin and Tahiti (middle), and outgoing longwave radiation anomaly (OLR) index averaged over the area 5°N–5°S, 160°E–160°W (bottom). Anomalies in the top and middle panels are departures from the 1981-2010 base period means and are normalized by the mean annual standard deviation. Anomalies in the bottom panel are departures from the 1981-2010 base period means. Individual monthly values are indicated by "x"s in the top and bottom panels. The x-axis labels are centered on July.


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