Our major research interests are the mechanism and the predictability of anomalous weather and climate change. Our interests are pursued combining dynamical theory, diagnostics of reanalysis and forecast datasets and numerical experiments using global and regional models. Recent major research topics include:
- dynamics and predictability of anomalous weather and large-scale atmospheric motions,
- coupled variability between the stratosphere and the troposphere and between the tropics and the extratropics,
- minor atmospheric constituents and their effects on global and regional climate,
- development of climate models and data assimilation methods with several hierarchies.