Research

Submarine groundwater discharge (SGD) is a significant, yet often overlooked, pathway for the transfer of solutes and nutrients from land to the coastal ocean. It plays an important role in shaping coastal biogeochemical cycles and contributes to long-term changes in ocean chemistry. In this theme, we emphasize a novel approach that seeks to quantify the solute fluxes associated with the individual components of SGD—such as wave-driven, tidally-driven, and density-driven flow. By disentangling these mechanisms and their geochemical signatures, we aim to better constrain how SGD contributes to elemental budgets and oceanic biogeochemical cycling.

Paleoclimate studies offer invaluable insights into the potential impacts of climate change, providing a long-term perspective beyond modern observations and model predictions. By examining past climate states under a wide range of boundary conditions (e.g., radiation, atmospheric CO₂), we can better understand the sensitivity and resilience of our climate system. Our group focuses on reconstructing past climate variations over glacial-interglacial cycles, primarily utilizing the geochemistry of terrestrial records such as lake deposits and loess.

Our research targets sensitive regions along the rainbelt and desert belt margins, where subtle shifts in global circulation cells and climate patterns are clearly recorded.