Human-driven sea-level rise has quadrupled the frequency of coastal sea-level extremes since 1900

This data and code accompanies our publication. It uses a couple of open source online packages that are required to download. I am coying them here to assure that the code properly runs. Original files can be found under: https://www-old.eoas.ubc.ca/~rich/#T_Tide https://github.com/wafo-project/wafo Please note that you need the m_map toolbox to perform most of the plots (https://www.eoas.ubc.ca/~rich/map.html). All other sub-functions have been added, e.g., the Singular Spectrum Analysis originally published and written by Aslak Grinsted (Moore, J. C., Grinsted, A., & Jevrejeva, S. (2005). New tools for analyzing time series relationships and trends. Eos, Transactions American Geophysical Union, 86(24), 226-232). Master_MSL_Case2 performs all detection and attribution analyses on relative sea level (RSL) Master_NonstationaryGPD_Case2 performs all detection and attribution analyses on extreme sea levels (ESL) Cases 1 and 3 are the same script using different attribution assumptions of the pre-1950 mismatch in Northern Hemispheric ice mass loss (see manuscript for details)