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 is an Associate Professor in School of Marine Sciences, Sun Yat-sen University. Her interest is in observing and modeling mesoscale-small scale dynamic processes in South China Sea. Her research is mainly supported by the project of National Natural Science Foundation of China, The National High Technology Research and Development Program of China, and so on. She publishes more than 30 papers and 1 book of Marine Meteorology. She is the reviewer of Journal of Geophysical Research-Oceans, Frontiers in Marine Science, International Journal of Climate, and so on.