Figure 2

(a) Time series of yearly mean SWIO indices (in °C). Observation (black line) and reforecast experiments (red lines) initialized from March 1st 1989 are shown. The thick red line corresponds to 12 ensemble mean results, whereas the thin red dotted lines correspond to each ensemble member. (b–d) Same as in (a), but for the other reforecast experiments initialized from March 1st in 1994, 1999, and 2004, respectively.