Dr Luwei Yang
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About
I am a physical oceanographer and a Postdoctoral Research Fellow in the Climate Fluid and Physics (CFP) group at Research School of Earth Sciences (RSES), the Australian National University (ANU). My research centers on understanding the impact of small-scale oceanic processes on large-scale ocean circulation. I use a combination of geophysical fluid dynamics theories, numerical modelling, and observational dataset in my research.
I obtained my PhD from the University of Tasmania in 2019. My PhD work focused on the impacts of internal lee waves on the Southern Ocean circulation. Specificially, I studied the importance of internal lee waves as an energy sink for the eddy field in the Southern Ocean and the impacts of internal lee waves on the Antarctic Circumpolar Current (ACC) and the Southern Ocean Meridional Overturning Circulation (MOC). In this work, I developed an energetically consistent parameterisation for internal lee waves that involved both the wave drag and wave-induced mixing; I then implemented this parameterisation in an eddy-resolving ocean configuration in MOM6 to study the importance of internal lee wave for the eddy energy, the volume transport of the ACC, the strength of the Southern Ocean MOC, and their response to the changes in westerly wind stress over the Southern Ocean.
Following my PhD, I joined the Department of Atmospheric and Oceanic Sciences at the University of California, Los Angeles (UCLA) as a Postdoctoral Scholar. My research was about understanding the interaction of eddies and wind-forced internal waves in the North Atlantic Subpolar Gyre. I used high-resolution numerical simulations in ROMS to investigate the role of eddy-wave interactions for the evolution of storm-generated near-inertial internal waves, and more broadly, for the formation of the entire internal wave continuum in the ocean.
Currently, I am studying the impacts of internal tides on large-scale ocean circulation (e.g., barotropic tides and mesoscale eddies).
Affiliations
- Climate and Fluid Physics, Researcher
Publications
Yang, L., R. Barkan, K. Srinivasan, J.C. McWilliams, C.J. Shakespeare, and A.H. Gibson, 2023: Oceanic eddies induce a rapid formation of an internal wave continuum, Communications Earth & Environment, 4, 484, doi: 10.1038/s43247-023-01137-1.
Yang, L., M. Nikurashin, A.M. Hogg, and B.M. Sloyan, 2023: Lee waves break eddy saturation of the Antarctic Circumpolar Current. Geophysical Research Letters, 50(11), doi: 10.1029/2023GL103866
Barkan R., K. Srinivasan, L. Yang, J.C. McWilliams, J. Gula, and C. Vic, 2021: Oceanic mesoscale eddy depletion catalyzed by internal waves. Geophysical Research Letters, 48(18), doi: 10.1029/2021GL094376
Yang, L., M. Nikurashin, A.M. Hogg, and B.M. Sloyan, 2021: The impact of lee waves on the Southern Ocean circulation. Journal of Physical Oceanography, 51(9), pp.2933-2950, doi: 10.1175/JPO-D-20-0263.1
Yang, L., M. Nikurashin, A.M. Hogg, and B.M. Sloyan, 2018: Energy Loss from Transient Eddies due to Lee Wave Generation in the Southern Ocean. Journal of Physical Oceanography, 48(12), 2867–2885, doi: 10.1175/JPO-D-18-0077.1