Understanding extreme sea levels for broad-scale coastal impact and adaptation analysis
Extreme events currently expected to happen on average once every 100 years could, in vulnerable coastlines around the world, occur every decade or even every year by 2050 warns this new study published in the journal “Nature Communications”
One of the main consequences of mean sea level rise (SLR) on human settlements is an increase in flood risk due to an increase in the intensity and frequency of extreme sea levels (ESL). While substantial research efforts are directed towards quantifying projections and uncertainties of future global and regional SLR, corresponding uncertainties in contemporary ESL have not been assessed and projections are limited. Here we quantify, for the first time at global scale, the uncertainties in present-day ESL estimates, which have by default been ignored in broad-scale sea-level rise impact assessments to date.