Figure 8.17: (a) Partial
eigenvalue spectrum for the EOFs from eleven CMIP AOGCMs. The observations (heavy
line), together with their 95% confidence limits (vertical bars), are obtained
by projecting the observed surface air temperature (Jones and Briffa, 1992; Rayner
et al., 1996) onto the common EOFs obtained from eleven CMIP AOGCMs. (b) as in
(a) except for ten separate 100-year segments of the GFDL control run. Taken from
Barnett (1999).