Global Tide Gauge-Satellite Altimetry Nontidal Residual (NTR) Data Release

This data release is associated with the manuscript “Global Assessment of Satellite Altimetry for Observing Extreme Coastal Sea Levels” submitted to Communications Earth & Environment. This repository contains derived datasets used to evaluate the ability of along-track satellite altimetry products to reproduce tide gauge-derived nontidal residual variability and extremes along global coastlines. The release includes matched tide gauge–satellite altimetry nontidal residual time series for CMEMS, X-TRACK, and ALES, including common-timestamp files used for direct product comparison, product-specific matched time series, and tide gauge-based percentile thresholds used to identify extreme nontidal residual values. Suggested citations Paper Quadrado, G. P., Wahl, T., Enriquez, A. R., Nagaraj, M., Passaro, M., & Haigh, I. D. Global Assessment of Satellite Altimetry for Observing Extreme Coastal Sea Levels. Communications Earth & Environment. Manuscript submitted. Data release Quadrado, G. P., Wahl, T., Enriquez, A. R., Nagaraj, M., Passaro, M., & Haigh, I. D. (2026). Global Tide Gauge–Satellite Altimetry Nontidal Residual (NTR) Data Release (v1.0.0). Zenodo. https://doi.org/10.5281/zenodo.20543274