Change in extreme precipitation characteristics in urban areas under global warming

Understanding the change in future extreme precipitation (EPs) is essential to create an adaptation plan to protect the life and prosperity of urban dwellers from increasing urban floods. Here we investigated the response of city-scale extreme precipitation to global warming effects over two large urban agglomerations, Tokyo and Singapore, using the pseudo-global-warming dynamical downscaling approach with the convection-permitting Weather Research and Forecast (WRF) model, under the Representative Concentration Pathways (RCPs) 8.5 and 4.5 up to the end of the 21st century. Precipitation event-oriented analysis is employed to investigate the change in the characteristics of WRF-simulated EPs regarding their intensity, frequency and durations. This analysis will focus on how EPs will change in future, and provide further insights into the response of these changing characteristics to both the global warming effect as well as the geographical dependency of such responses.