Obering Postdoctoral Fellow
I'm a geochemist using Earth system model to investigate changes in climate and the geochemistry of ocean and land. Specifically, I'm interested in time intervals in the geologic past when the rate of greenhouse gas release is faster than the background rate, for example, mass extinction events and extreme global warming events. My primary tools are stable isotopes of carbon (bulk carbonate, organic matter, and compound specific), oxygen (tree ring and cellulose), and nitrogen (bulk organic matter) and Earth system model of intermediate complexity equipped with the cycles of these elements. I'm also interested in uncertainty quantification using a variety of statistical approaches to investigate the changes in temperature in response to a doubling of pCO2 (known as climate sensitivity).Personal Website
Selected works and activities
1. Y. Cui, A. Bercovici, J. Yu, L. R. Kump, K. H. Freeman, Shangguo Su and V. Vajda. Carbon cycle perturbation expressed in terrestrial Permian-Triassic boundary sections in South China. Global and Planetary Change, in press. DOI: 10.1016/j.gloplacha.2015.10.018.
2. Y. Cui and B. Schubert. Quantifying uncertainty of past pCO2 determined from changes in C3 plant carbon isotope fractionation. Geochimica et Cosmochimica Acta 172: 127-138 (2016). DOI: 10.1016/j.gca.2015.09.032.
3. A. Bercovici, Y. Cui, M. Forel, J. Yu, and V. Vajda. Terrestrial paleoenvironment characterization across the Permian-Triassic boundary in South China. Journal of Asian Earth Sciences 98: 225-246 (2015). DOI: 10.1016/j.jseaes.2014.11.016.
4. Y. Cui, L.R. Kump, A. Ridgwell. Spatial and temporal patterns of ocean acidification during the end-Permian mass extinction - an Earth system model evaluation, In: A. Schmidt, K.E. Fristad, and L.T. ELkins-Tanton, (Eds.), Volcanism and Global Environmental Change. Cambridge University Press, United Kingdom: 291-306 (2015).
5. Y. Cui, and L. R. Kump. Global warming and the end-Permian extinction event: proxy and modeling perspectives. Earth-Science Reviews 149: 5-22 (2015). DOI: 10.1016/j.earscirev.2014.04.007.
6. Y. Cui, L. R. Kump, and A. Ridgwell. Initial assessment on the carbon emission rate and climatic consequences during the end-Permian mass extinction. Palaeogeography Palaeoclimatology Palaeoecology. 387: 176-184 (2013). DOI:10.1016/j.palaeo.2013.09.001.
7. Y. Cui, L. R. Kump, A. Ridgwell, A. J. Charles, A. Diefendorf, C. K. Junium, K. H. Freeman, N. Urban, and I. C. Harding. Slow release of fossil carbon during the Paleocene-Eocene Thermal Maximum. Nature Geoscience, 4(7): 481-485 (2011). DOI:10.1038/ngeo1179.