Instructors/Speakers Prof. Dongxiao WANG Dean and Professor School of Marine Sciences Sun Yat-sen University China Abstract South China Sea (SCS) is one of the crucial oceanic channels connecting Pacific Ocean and Indian Ocean. It develops a complicated circulation, and heat and salt variability of SCS could have significant influences on regional climate. This topic will introduce (1) Interannual variation of circulation in the SCS. The intensity of eastward and northward branch of the summer SCS Western Boundary Current (WBC) along the coast of Vietnam showed negative correlation on interannual scale. This variation is mainly affected by the SCS Summer Monsoon and the flux of Luzon Strait. (2) Subsurface layer warming event in the SCS. Extreme warming events had happened many […]

Instructors/Speakers Prof. Chunhua QIU Associate Professor School of Marine Sciences Sun Yat-sen University China Abstract Mesoscale eddies with spatial resolution of 50-300 km and temporal scales of several weeks carry more than 80% of global ocean kinetic energy，therefore, they are very important in ocean modeling. South China Sea is fulfilled with mesoscale eddies. We reviewed the observation skills of mesoscale eddies first. Then the deformation of mesoscale eddy was investigated by using observational network. We defined a vortex-deformation index to forecast the deformation trend of mesoscale eddy, and found the baroclinic instability is the main mechanism of eddy deformation. By using MITgcm model, we found the eddy advection induced an extreme surface cooling after Tropical cyclone “Bailu”. Biography Chunhua Qiu […]