This dataset contains model simulation results described in the article "Spatial analysis of future climate risk to stormwater infrastructure". Simulations were conducted for 2,509 weather stations located across the U.S. where NOAA Atlas 14 precipitation statistics are available. Simulations were not conducted in northwest States because the methodology requires NOAA Atlas 14 statistics which are not available in this region. Climate change scenarios are based on LOCA-downscaled CMIP5 GCM output for mid-century. Scenarios evaluated represent the 90th, median, and 10th percentile GCMs across the LOCA ensemble for each Atlas 14 location and recurrence interval, for event durations from 1 to 24 hours and recurrence intervals from 2 to 100 years. Future precipitation estimates are converted to runoff with EPA’s Storm Water Management Model version 5 (SWMM5) on a unit-area basis for a simple generic catchment. We evaluate the effects of changes in specific duration-frequency events on wet detention and bioretention based stormwater BMPs.

This dataset is associated with the following publication: Butcher, J., S. Sarkar, T. Johnson, and A. Shabani. Spatial Analysis of Future Climate Risk to Stormwater Infrastructure. JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION. American Water Resources Association, Middleburg, VA, USA, 1-14, (2023).