Using a set of high-resolution simulations, this study demonstrates a poleward shift and intensified Mei-yu precipitation under the global warming scenario. Despite the increased water vapor transport, the reduction of the mid-tropospheric relative humidity and weakened large-scale ascending motion suppress Mei-yu precipitation. The cooling effect dominates the surface energy budget, resulting in a weakened land–sea thermal contrast and thus suppressed moisture transport from the ocean. The strengthened extratropical storm track and associated eddy heat flux transport are also responsible for the weakened East Asian summer monsoon, ultimately leading to less Mei-yu precipitation.
