Figure 4.30 | CMIP6 Annular Mode index change from 1995–2014 to 2081–2100. (a) Northern Annular Mode (NAM) and (b) Southern Annular Mode (SAM). The NAM is defined as the difference in zonal mean SLP at 35°N and 65°N (Li and Wang, 2003) and the SAM as the difference in zonal mean SLP at 40°S and 65°S (Gong and Wang, 1999). The shadings are the 5–95% ranges across the simulations. The numbers near the top are the numbers of model simulations in each SSP ensemble. Further details on data sources and processing are available in the chapter data table (Table 4.SM.1).