Climate Dynamics Theory

Interaction between cumulus convection, radiation and large-scale circulation is the core of tropical atmospheric dynamics. Based on the "convective quasi-equilibrium" framework, along with climate model simulation and observational truth from atmosphere-ocean reanalysis data, radiosonde and satellite soundings, we examine the roles of convection of various vertical structures in transporting energy and moisture, as well as the impact on radiation balance. We eventually aim to develop or improve a moist atmospheric model applicable for the study of tropical climate changes and low frequency climate oscillations.

Low-frequency Climate Oscillation

Low-frequency climate oscillaitons impose significant impacts on various social aspects, such as energy, agriculture, fishery, water resource and environment quality. We aim to explore the space-time features and maintenance mechanisms of the natural low-frequency climate oscillations, including Madden-Julian Oscillation (MJO), El Nino/Southern Oscillation (ENSO) and Pacific Decadal Oscillation (PDO). We also project their possible changes under global warming as well as their impacts on regional climate and weather.
Typhoon-Climate System Interactions
Tropical cyclone (TC) is the most powerful and devastating natural weather system on earth. Each year, about 26 TCs occur over the western North Pacific (WNP) basin. Understanding how the atmospheric and oceanic environment conditions control TC activity is the key leading to a skillful seasonal forecast. It also helps illucidate how the frequency, intensity and track of TCs might change under the influences of anthropogenic greenhouse warming.