Global coastal wind hazard maps from the CHAZ tropical cyclone model

Synthetic tropical cyclone (TC) models have become essential tools for
assessing TC hazard and risk, due to both the shortness of observational
records and, now, the influence of climate change. However, the direct
output from these models, TC track sets, requires additional processing to
become useful for impact assessments beyond traditional climate science
and meteorological research. Converting TC tracks into hazard maps
condenses complex information on TC intensity and frequency into widely
accessible formats, facilitating diverse impact analyses. Here, we present
global coastal wind risk maps generated using the Columbia tropical
cyclone hazard model (CHAZ) for both present-day and future climate
conditions. Climate scenario-driven data are provided for a recent
historical period (1995-2014) and two future periods, mid-century
(2041-2060) and end-of-century (2081-2100); a reference data set
downscaled from an observation-based reanalysis for 1981-2019 is also
provided. These hazard maps depict TC intensity exceedance probabilities
and return periods, providing valuable insights to policymakers, planners,
and researchers focused on disaster preparedness.