Figure 3 Root-mean-square MLD variability separated into interannual (1/5yr-1<f<1yr-1) and decadal frequency bands (f<1/5yr-1) and into bi-seasons (left) December-April and (right) June-October. Interannual values are masked out if a grid box has less than 10% data coverage, while decadal values are masked out if the more poorly sampled first half of the record has less than 10% data coverage. Units are meters.
Figure 4 Winter-spring (Decmber-April) MLD anomalies averaged into 15-year intervals. Grid points with fewer than 15 monthly samples in any 15-year interval are masked out. A deepening trend is evident in the North Pacific and North Atlantic.
