We do not account for sedimentation in the GMSL estimate because it is estimated to be a very small factor. Unlike the glacial isostatic adjustment (GIA) correction, which is 0.3 mm/yr, the estimated effect of sedimentation on global mean sea level is an order of magnitude smaller at 0.02 mm/yr (Gornitz and Lebedeff, 1987; Milliman and Meade, 1983; Holeman, 1968).