積雲對流與向東傳播赤道大氣波動交互作用研究(1/3)

It has been recognized that interactions between cumulus-scale convection andlarge-scale circulation is the core of tropical atmospheric dynamics. Theconvectively-coupled equatorial atmospheric waves in the real world happen tobe the best candidates to elucidate the mechanisms behind such interactions. Inthis three-year project, the recently-developed advanced convective quasi-equilibrium model (CQE2.0) will be utilized as a tool to examine the maintenancemechanisms of eastward-propagating equatorial wave (e.g., Kelvin wave andMadden-Julian Oscillation) in the present-day climate using the ERA5 reanalysisatmospheric data. The CMIP5 and CMIP6 model simulations data will also beused to project the potential changes of the above equatorial waves under globalwarming. In particular, the roles played by cloud-radiation effect and stabilityadjustment in maintaining the eastward-propagating equatorial waves and theirimpacts on typhoon activity over the western North Pacific are the main focus ofthis study.