On North Atlantic Intedecadal Variability: A Stochastic View
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Fig. 9.10 Spectra ofthe anomalous North Atlantic a) SST, b) meridional overtuming, and c)
NAO shown in Fig. 9.9. From Grotzner et al. (1999, pers. comrn.).
tion of the anomalous upper ocean heat content is dominated by a clockwise rotation around the subtropical gyre (Fig. 9.13). Advection of temperature anomalies
by the mean currents and wave processes (in response to changing winds) are
likely to contribute both to the evolution in the upper ocean heat content, as argued