A new tool to help decision makers and others assess how sea-level rise and other factors will affect the frequency of high-tide flooding in U.S. coastal locations in the next 50–100 years has been developed by University of Hawaii Sea Level Center Director Phil Thompson with funding from NASA’s Earth Science Division.High-tide flooding, also known as “sunny day” or nuisance flooding, is an increasingly frequent occurrence in coastal areas around the United States. The Flooding Days Projection Tool is an online dashboard that projects the number of high-tide flooding days per year for 97 U.S. cities, based on National Oceanic and Atmospheric Administration (NOAA) impact thresholds. These thresholds provide
