Modeling Intensity‐Duration‐Frequency curves for the whole range of non‐zero precipitation: A comparison of models

Intensity-Duration-Frequency curves are useful in water resources engineering for the planning and design of hydrological structures. As opposed to common use only extreme data build IDF curves, here, we all non-zero rainfall intensities, thereby making efficient available information. We Extended Generalized Pareto Distribution (EGPD) model distribution intensities. consider three commonly used approaches building curves. The first approach is based on scale-invariance property rainfall, second relies general formulation Koutsoyiannis et al. (1998) while last purely data-driven (Overeem al., 2008). Using these approaches, some extensions around them, a total 10 models then compare them split-sampling cross-validation framework. 81 stations at min resolution Switzerland. Due marked seasonality study area, performed seasonal-based analysis. results reveal as best model. It able correctly observed intensities across duration being reliable robust. also reproduce space time variability