Author(s): Van Thanh Van Nguyen
Linked Author(s): Van-Thanh-Van Nguyen
Keywords: Climate change impacts; Downscaling methods; Extreme rainfall processes; Urban water infrastructure design; Global climate models
Abstract: In this study, a decision-support tool (SMExRain) was proposed for assessing the climate change impacts on extreme rainfall processes at a given location. More specifically, the SMExRain consists of two components: (i) the first component is to identify the most suitable probability models for frequency analyses of annual maximum rainfall series for different durations for accurate estimation of design storms; and (ii) the second component is a statistical downscaling model to describe the linkage between global climate change projections and daily and sub-daily annual maximum rainfalls at a given site. Results of an illustrative application have indicated the feasibility and accuracy of this tool using observed extreme rainfall data over Ontario region in Canada and based on climate simulation outputs from 21 global climate models for different climate change scenarios. Therefore, the proposed decision support tool can be used for assessing the climate change impacts on design rainfalls in practice.
Year: 2026