Strong future increases in Arctic precipitation variability linked to poleward moisture transport

摘要: The Arctic region is projected to experience amplified warming as well strongly increasing precipitation rates. Equally important trends in the mean climate are changes interannual variability, but fluctuations highly uncertain and associated processes unknown. Here, we use various state-of-the-art global model simulations show that variability of will likely increase markedly (up 40% over 21st century), especially summer. This can be attributed increased poleward atmospheric moisture transport with enhanced content, possibly modulated by dynamics. Because both means increase, years/seasons excessive occur more often, impacts.