The Rising Pulse of the Atmosphere: Variability of the Global Atmospheric Circulation During the Past 100 Years; Monte Verit, Switzerland, 15–20 June 2008

Understanding atmospheric circulation is fundamental not only to accurate weather prediction. Climate change leads to, proceeds through, and can be detected by changes in atmospheric circulation. Seasonal to interannual prediction means reproducing large‐scale circulation responses. Progress in assessing climate change effects and climate prediction requires documenting and modeling the past variability of atmospheric circulation—and stringently comparing models with observations. The past 100 years, which reflect a range of forcings (both natural and anthropogenic) and different variability timescales, are ideal for testing our understanding.