Model development (WP 1)
In the first months, I have been mainly working on model developments to improve the physical representation of the ice-sheet model. This work has been partly presented in the IGS conference in Cambridge (September 2015). Furthermore, ongoing work also focusses on speeding up the model, such that the computational time of simulations is reduced. These updates are included in a invited review article in Quaternary Science Reviews (currently under review).
Setting up coupling framework (WP 1)
The first set up of the modelling framework has been tested with using a 40,000-year simulation of FAMOUS from 3.225 to 3.185 million years ago and force the ice-sheet model
ANICE of Antarctica and Greenland with monthly temperature and precipitation. First results were presented at the EGU General Assembly in Vienna in April 2016.
Additional tests have been performed using the HadCM3 climate forcing (Prescott et al., 2014) over two time periods of 40,000 years during the warm Pliocene. Multiple HadCM3 simulations are used to assess the change in ice volume of the Antarctic and Greenland ice sheets during these time periods. A suite of sensitivity experiments are performed
to asses model uncertainties. Results will be included in a paper on simulation transient climate and sea-level, to be submitted early 2017.
Pliocene ice-sheet modelling intercomparison
Following on earlier work (De Boer et al., 2015) new simulations with the ice-sheet model for Antarctica have been performed using different climate model outputs from the Pliocene Modelling Intercomparison Project (Haywood et al., 2013). Results show the dependency of the Antarctic ice sheet on this output and a comparison with other ice-sheet models. This work has been presented at the AGU Fall Meeting in San Francisco (December 2015) and at the EGU General Assembly in Vienna (April, 2016) by my collaborator Aisling Dolan.
References
de Boer, B., A. M. Dolan, J. Bernales, E. Gasson, N. R. Golledge, J. Sutter, P. Huybrechts, G. Lohmann, I. Rogozhina, A. Abe-Ouchi, F. Saito and R. S. W. van de Wal. Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project. The Cryosphere, 9, 881-903, 2015
Prescott, C. L., Haywood, A. M., Dolan, A. M., Hunter, S. J., Pope, J., O., Pickering, S. J. Assessing orbitally-forced interglacial climate variability during the mid-Pliocene Warm Period, Earth and Planetary Science Letters, 400, 261-271, 2014
Haywood, A. M., Hill, D. J., Dolan, A. M., Otto-Bliesner, B. L., Bragg, F., Chan, W. L., Chandler, M. A., Contoux, C., Dowsett, H. J., Jost, A., Kamae, Y., Lohmann, G., Lunt, D. J., Abe-Ouchi, A., Pickering, S. J., Ramstein, G., Rosenbloom, N. A., Salzmann, U., Sohl, L., Stepanek, C., Ueda, H., Yan, Q., Zhang, Z. Large-scale features of Pliocene climate: Results from the Pliocene Model Intercomparison Project, Climate of the Past, 9, 191-20, 2013.
