Eliminating the Hook in Precipitation Temperature Scaling

Abstract

Observational studies of extreme daily and subdaily precipitation temperature sensitivities (apparent scaling) aim to provide evidence and improved understanding of how extreme precipitation will respond to a warming climate. However, interpretation of apparent scaling results is hindered by large variations in derived scaling rates and divergence from theoretical and modeled projections of systematic increases in extreme precipitation intensities (climate scaling). In warmer climatic regions, rainfall intensity has been reported to increase with temperature to a maximum before decreasing, creating a second-order discontinuity or hook -like structure. Here we investigate spatial and temporal..