Workshop: Stratospheric predictability and impact on the troposphere

Over the past 20 years the notion that the stratosphere is intimately involved in tropospheric predictability has evolved from fanciful hypothesis to established fact. The physical timescales are such that the stratosphere can provide a source of internal atmospheric predictability on subseasonal to seasonal timescales, and many studies have shown that the impact on the troposphere can be of...

Stratospheric variability is increasingly being investigated as a potential source of tropospheric predictive skill on sub-seasonal to seasonal (S2S) timescales. Here we provide a broad overview of stratosphere-troposphere coupling processes in the S2S prediction systems. We consider both the predictability of the stratosphere itself, and the influence of stratospheric variability on the...