Regional projections of extreme sea level (1-in-100-year return period Extreme Total Water Level (ETWL). The bar plots show projections of regionally averaged ETWL from the CMIP5-based datasets presented in Vousdoukas et al. (2018b; filled circles, ‘V’ in legend), and Kirezci et al. (2020; open circles, ‘K’ in legend), for the AR6 WGI Reference Regions, for RCP8.5 (red) and RCP4.5 (blue). Dots represent the median estimate and bars the 5th–95th percentiles representing the uncertainty associated with the projections for the mid-term (2050), long term (2100) and the recent past (black, 1979/1980–2014). Units are metres. See Technical Annex VI for details about the index. Further details on data sources and processing are available in the chapter data table (Table 12.SM.1).