Zhi started his PhD in August 2018. His research focus on the formation, variability and mechanisms controlling Subantarctic Mode Water in the Southern Ocean. Now, he is doing some research work about the interannual variation of the annual subduction rate in the Southern Ocean by using a gridded Argo product. Zhi graduated from Ocean University of China with a master degree of science in 2018. During his master, Zhi did some work about the response of the tropical Indian Ocean to GHGs and aerosols, and his master thesis is about the subduction of the SAMW and AAIW in the Southern Ocean.