Stronger influences of increased CO2 on subdaily precipitation extremes than at the daily scale

We find that the increased CO2 concentration substantially increases the odds of the occurrence of subdaily precipitation extremes compared to the daily scale in most areas of the world, with the exception of some regions in the subtropics, likely in relation to the subsidence of the Hadley Cell. These results point to the large role that atmospheric CO2 plays in extreme precipitation under an idealized framework.

Zhang, W., G. Villarini, E. Scoccimarro, and G.A. Vecchi, Stronger influences of increased CO2 on sub-daily precipitation extremes than at the daily scale, Geophysical Research Letters, 44, 7464-7471, 2017.