Phys.org January 18, 2022
Intense atmospheric rivers (ARs), eddy transports of moisture over the middle latitudes, contributed significantly to the extremely heavy rainfall events over the last decade in parts of East Asia. The extent to which ARs produce extreme rainfall over East Asia in a warmer climate remains unclear. An international team of researchers (Japan, USA – University of North Carolina) evaluated changes in the frequency and intensity of AR-related extreme heavy rainfall under global warming using a set of high-resolution global and regional atmospheric simulations. They found that both the AR-related water vapor transport and rainfall intensify over the southern and western slopes of mountains over East Asia in a warmer climate. ARs are responsible for a large fraction of the increase in the occurrence of extreme rainfall in boreal spring and summer. ARs will bring unprecedented extreme rainfall over East Asia under global warming…read more. Open Access TECHNICAL ARTICLEÂ
Climatology of atmospheric river (AR)-related rainfall over East Asia… Credit: Geophysical Research Letters, 01 December 2021Â