Fig. 6: Regional sea-level accelerations from tide-gauge observations (1970–2018) compared with the sea-level projection (2007–2032).
From: Reconciling global mean and regional sea level change in projections and observations
Sea-level acceleration [mm yr−2] are based on tide-gauge observations (TG; red), the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (AR5) projection (blue) and their differences (TG minus AR5; green) at each tide-gauge station, for a box plots and b histogram, with AR5 under Representative Concentration Pathway (RCP) 2.6 (top panel), RCP4.5 (middle panel), and RCP8.5 (bottom panel) scenarios. TG accelerations with climate variability removed via multiple variable linear regression (MVLR). Error bars indicate 90% confidence level, and accelerations, which are not significant at 90% confidence level denoted as cross symbols. Region definition in a is shown in Fig. 2. In histograms b, the bin width is 0.025 mm yr−2, horizontal lines present weighted-mean accelerations (μ) at all TG stations, σ denotes the standard deviation of the acceleration at all TG stations.
