Figure 4. Temperature and salinity contributions to pycnocline stratification and its change.
Percentage contribution of (a) temperature and (b) salinity to the summer climatological pycnocline stratification shown in Fig. 2a. Percentage contribution of (c) temperature and (d) salinity to the summer climatological pycnocline stratification trend shown in Fig. 3a. Regions with no significant trend (see Methods) are shaded in gray in panels c and d.