IDF Curve Estimation Using Convection-Permitting Model Simulations of Extreme Precipitation

Leveraging a new 150-year dynamical downscaling dataset at convection-permitting resolution, this set of Python/R/Bash shell scripts introduces a tool to construct the projected future intensity-duration-frequency (IDF) curves of heavy precipitation, which are prominent tools for infrastructure design and water resources management. This tool generates IDF curves at both sub-daily and multi-day duration utilizing hourly in situ observations as well as quantile-based statistical techniques in bias-correction and return levels selection. The assumption of non-stationary in the distribution parameter fitting process is also implemented in this workflow.