Yeung Lab

I am determining how atmospheric temperatures have varied at high altitudes since the last glacial maximum (~20,000 years ago) by analyzing the ¹⁸O¹⁸O content of O₂ trapped in glacial ice cores. Linking these temperature variations with temperature records at ground level give us new constraints on atmospheric dynamics in different climates, when greenhouse gas concentrations were different from today.

1. Yan, Y., A. Banerjee, L. T. Murray, X. Tie, and L. Y. Yeung, "Tropospheric ozone during the Last Interglacial," Geophys. Res. Lett. 49 (2022) e2022GL101113. doi: 10.1029/2022GL101113
2. Banerjee, A., B. Riddell-Young, and U. Jongebloed, "Ice core records of atmospheric composition and chemistry," PAGES Magazine (2022) 104-105. doi: 10.22498/pages.30.2.104
3. Banerjee, A., L. Y. Yeung, L. T. Murray, X. Tie, J. E. Tierney, and A. N. LeGrande, “Clumped-isotope constraint on upper-tropospheric cooling during the Last Glacial Maximum," AGU Adv. 3 (2022) e2022AV000688. doi: 10.1029/2022AV000688. (Editor's Highlight; see also Viewpoint by Seltzer and Tyne and News from Science Magazine)
4. Yeung, L. Y., L. T. Murray, A. Banerjee, X. Tie, Y. Yan, E. L. Atlas, S. M. Schauffler, and K. A. Boering,"Effects of ozone isotopologue formation on the clumped-isotope composition of atmospheric O₂," J. Geophys. Res. Atmos. 126 (2021) e2021JD034770. doi: 10.1029/2021JD034770.
5. Hayles, J. A., L. Y. Yeung, M. Homann, B. Shen, A. Banerjee, H. Jiang, and C. T. A. Lee, “Three-billion-year secular evolution of the triple oxygen isotope composition of marine chert," in review at Earth and Planetary Science Letters. EarthArXiv preprint.
6. Yeung, L. Y., L. T. Murray, P. A. Martinerie, H. Hu, A. Banerjee, E. Witrant, A. Orsi, and J. Chappellaz, “Isotopic constraint on the twentieth-century increase in tropospheric ozone,” Nature 570 (2019) 224-227. doi: 10.1038/s41586-019-1277-1.