Modelling oxygen isotopes in the University of Victoria Earth System Climate Model C. E. Brennan1, A. J. Weaver1, M. Eby1, and K. J. Meissner2 1University of Victoria School of Earth and Ocean Sciences, Victoria, British Columbia, Canada 2University of New South Wales Climate Change Research Centre, Sydney, New South Wales, Australia
Received: 02 September 2011 – Accepted: 20 September 2011 – Published: 28 September 2011
Abstract. Implementing oxygen isotopes (H218O, H216O) in coupled climate
models provides both an important test of the individual model's hydrological
cycle, and a powerful tool to mechanistically explore past climate changes
while producing results directly comparable to isotope proxy records. Here we
describe the addition of oxygen isotopes in the University of Victoria Earth
System Climate Model (UVic ESCM). Equilibrium simulations are performed for
preindustrial and Last Glacial Maximum conditions. The oxygen isotope content
in the model preindustrial climate is compared against observations for
precipitation and seawater. The distribution of oxygen isotopes during the
LGM is compared against available paleo-reconstructions.
Citation: Brennan, C. E., Weaver, A. J., Eby, M., and Meissner, K. J.: Modelling oxygen isotopes in the University of Victoria Earth System Climate Model, Geosci. Model Dev. Discuss., 4, 2545-2576, doi:10.5194/gmdd-4-2545-2011, 2011.