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.