Extended Data Fig. 1: Average rate of RSL change from tide-gauge data.
From: Reply to: Climate did not drive Common Era Maldivian sea-level lowstands
Average rate of RSL change (trends as in Piecuch et al.2) from tide-gauge data vary substantially, depending on time windows. Rates at Cochin, India AD 1940–2013 (a), AD 1940–1960 (b), AD 1961–1990 (c) and AD 1990–2013 (d). Rates vary from −0.70 mm yr−1 to +6.95 mm yr−1. Hence, it is not appropriate that Piecuch et al.2 use tide-gauge data with different durations to argue against our observational data. Tide-gauge data were obtained from the Permanent Service for Mean Sea Level (PSMSL) (https://www.psmsl.org/data/obtaining/). Following Piecuch et al.2, trends estimated from the slope of a least-square linear fit to available data (ignoring data gaps). Cochin tide-gauge data are plotted with respect to the average value during 1990–2013 CE.
