My research focuses on ocean circulation and ventilation processes, their temporal variability in response to climate change, and their impacts on biogeochemical processes in the coastal and open oceans. In particular, my work addresses the question that ‘How can we couple key physical and biogeochemical processes using natural and anthropogenic tracers and detect and interpret impact of natural variability in the marine environment over interannual to decadal time scales, in global and regional scales?’ Specifically, I am working on the analysis of temporal trend of dissolved oxygen in the Southern Ocean, and the North Pacific and the North Atlantic Oceans during the past several decades to detect  the ocean’s response to climate change.

My methodological approaches include laboratory measurement, sea-going observation, large-scale data analysis, and conceptual numerical modeling of biogeochemical processes. I am also interested in understanding the role of groundwater in exchanging chemicals with the ocean in the coastal area, natural and anthropogenic gases monitoring, non-conservative behavior of some halocarbon compounds, time-series ocean observations, and hyper-saline water formation and distribution processes and large-scale circulation and ventilation in the Gulf of Mexico region.