2604.00811 Multiscale Persistence Structure of Global Mean Sea Level: Evidence from Detrended Fluctuation Analysis and Rescaled Range Methods
We investigate the long-range dependence structure of the Church and White global mean sea level (GMSL) reconstruction (1880–2013) using detrended fluctuation analysis (DFA) applied to the seasonally adjusted level series and rescaled range (R/S) analysis applied to monthly increments. DFA of the raw GMSL record yields a scaling exponent α = 1.