Biography：

I received my PhD in Physical Oceanography from the University of Tasmania in December 2023. Following this, I moved to the University of Miami for a postdoctoral position. Since my undergraduate studies, I have been fascinated by ocean circulation dynamics and their impact on the climate system. My research primarily focuses on two key directions in the study of ocean circulation: (1) Investigating the formation and evolutionary processes of ocean circulations and their dynamic mechanisms from the perspective of paleoclimate evolution; (2) Studying the recent trends of the Atlantic Meridional Overturning Circulation (AMOC) and its response to changes in the climate system based on modern observations and high-resolution simulations. The related research findings have been published in journals such as Science Advances, Geophysical Research Letters, and Climate of the Past.

Abstract：

Climate models predict a decline in the Atlantic Meridional Overturning Circulation (AMOC) under increased greenhouse gas forcing, with some suggesting it may be approaching a tipping point. While direct observations indicate a recent weakened state, the short observational record makes it difficult to distinguish between natural decadal variability and a long-term declining trend. To address this, we apply a consistent methodology to harmonize data from various observational arrays across the Atlantic, enabling a unified estimate of overturning transport strength for investigating its long-term variability.

First, I will introduce the "Stepping Method," a novel approach that uses cross-slope ocean bottom pressure (OBP) gradients to estimate deep overturning transports. Second, I will apply this method to recompute four extended time series from mooring arrays to assess the long-term trends in deep overturning transports and their relationship with the AMOC, aiming to address whether the recent apparent decline in the AMOC is statistically significant and consistent across latitudes. Finally, I will explore the physical mechanisms behind the AMOC decline by analyzing the structure of simulated OBP trends to identify the key processes driving these patterns under contemporary climate change.