The driving of North American climate extremes by North Pacific stationary-transient wave interference.

ABSTRACT: Wave interference between transient waves and climatological stationary waves is a useful framework for diagnosing the magnitude of stationary waves. Here, we find that the wave interference over the North Pacific Ocean is an important driver of North American wintertime cold and heavy precipitation extremes in the present climate, but that this relationship is projected to weaken under increasing greenhouse gas emissions. When daily circulation anomalies are in-phase with the climatological mean state, the anomalous transport of heat and moisture causes the enhanced occurrence of cold extremes across the continental U.S. and a significant decrease of heavy precipitation extremes in the western U.S. In a future emissions scenario, the climatological stationary wave over the eastern North P

SUBMITTER: Park M 

PROVIDER: S-EPMC11345455 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature