Abstract: A conceptual framework is developed for quantifying the relationship between low-frequency variability and extreme events. In this framework, variability is decomposed into low-frequency and synoptic components using ...

Abstract: Theoretical and modeling studies of nongeostrophic effects in baroclinic waves predict that baroclinic waves should tilt poleward with height, with a larger tilt in total meridional wind than in geostrophic quantities. ...

Abstract: Prescribed SST experiments are performed using the National Center for Atmospheric Research?s Community Climate Model version 3 general circulation model to isolate the contribution of the tropical SSTs reconstructed by ...

Abstract: The dynamical simulation of the latest version of the Community Atmosphere Model (CAM3) is examined, including the seasonal variation of its mean state and its interannual variability. An ensemble of integrations forced ...

Abstract: Extratropical atmosphere?ocean variability over the Northern Hemisphere of the Community Climate System Model version 3 (CCSM3) is examined and compared to observations. Results are presented for an extended control ...