Focus on problems in large scale atmospheric dynamics, and on the predictability of the coupled ocean-atmosphere system. Work to characterize the processes that organize midlatitude tropospheric variability on monthly and longer timescales - influence of land-sea contrasts, the synoptic eddies and tropical sea surface temperature anomalies. Prominent intrinsic modes of variability of the atmosphere; quasi-linear models, stochastic methods, the fluctuation dissipation theorem, and analog techniques.
Diagnostic analysis of observed and modelled global climate variability in the coupled atmosphere-ocean-ice-land system on diurnal to centennial time scales and future climate change; causes and consequences of Arctic sea ice loss, uncertainty in climate change projections, the El Niño - Southern Oscillation phenomenon, the North Atlantic Oscillation, and the Pacific Decadal Oscillation.
Diagnostic analyses of climate variability in the Antarctic; paleoclimate of the last millennium in the polar regions; evaluation of climate models.
Hurricane climatology and structure, long-range predictability, atmospheric angular momentum, the El Nino/Southern Oscillation, analyses of ocean data and, the 11-year Sunspot Cycle effects on the atmosphere.
Large scale atmospheric dynamics and its representation in global climate models. Work to understand dynamical mechanisms involved in the variability and change of the large scale circulation and its impacts on regional climate and hydroclimate using a hierarchy of modelling approaches. Aim to determine the extent which models can successfully capture the processes of relevance for the real atmosphere and how they can be improved.
All aspects of climate variability and climate change research; global energy and water cycles and how they are changing; empirical studies and quantitative diagnostic calculations.