The Florida Flood Hub for Applied Research and Innovation and the U.S. Geological Survey have developed projected future change factors for precipitation depth-duration-frequency (DDF) curves at 242 NOAA Atlas 14 stations in Florida. The change factors were computed as the ratio of projected future to historical extreme-precipitation depths fitted to extreme-precipitation data from downscaled climate datasets using a constrained maximum likelihood (CML) approach as described in https://doi.org/10.3133/sir20225093. The change factors correspond to the period 2020-59 (centered in 2040) or to the period 2050-89 (centered in the year 2070) as compared to the 1966-2005 historical period.
Geospatial data provided in an ArcGIS shapefile are described herein. The shapefile shows the locations of NOAA Atlas 14 stations in Florida for which depth-duration-frequency curves and change factors of precipitation depths were developed as part of this project. For more information about the stations, see Table 1 of Datasets_station_information.xlsx.