Dr. Shaw will discuss recent research linking extreme stratospheric wave propagation (upward and downward) to North Atlantic weather and climate.
The extreme events significantly impact the residual circulation in the stratosphere and are connected to North Atlantic Oscillation-like anomalies
in the troposphere. The representation of these links in Coupled Model Intercomparison Project Phase 5 (CMIP5) models, including their connection
to biases in the Atlantic jet stream will be discussed.