Figure 6

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Figure 6: Time series of actual ENSO-CLIPER forecasts of (a) Niño-4, (b) Niño-3.4, (c) Niño-3, (d) Niño-1+2 SST indices in °C and (e) the SOI, based upon conditions up to 1 April, 1996. Circled points are the observed three month average values. Circled points with horizontal bars are the three month average forecast values. The horizontal bar indicates the adjusted RMSE.