I am interested in modelling iceberg calving from outlet glaciers and ice shelves. My PhD project involved the development and application of a 3D full Stokes calving model to Store Glacier, West Greenland. The model incorporates present-day environmental processes and the modelled calving front evolves seasonally in response.
More generally, I am interested in developing large scale models for ice dynamics and the associated computational challenges. I work primarily with the open-source and highly scalable ice flow model Elmer/Ice (http://elmerice.elmerfem.org/).
2016 – present: Research Fellow, University of St Andrews
2012 – 2016: PhD, Universtiy of Cambrdige – A 3D full Stokes calving model for Store Glacier, West Greenland
Active research projects:
Passalacqua, O., Gagliardini, O., Parrenin, F., Todd, J., Gillet-Chaulet, F., & Ritz, C. (2016). Performance and applicability of a 2.5 D ice-flow model in the vicinity of a dome. Geoscientific Model Development, 9(2).
Ryan, J. C., Hubbard, A. L., Box, J. E., Todd, J., Christoffersen, P., Carr, J. R., Holt, T. O., and Snooke, N.: UAV photogrammetry and structure from motion to assess calving dynamics at Store Glacier, a large outlet draining the Greenland ice sheet, The Cryosphere, 9, 1-11, doi:10.5194/tc-9-1-2015, 2015.
Todd, J., & Christoﬀersen, P. (2014). Are seasonal calving dynamics forced by buttressing from ice mélange or undercutting by melting? Outcomes from full-Stokes simulations of Store Gletscher, West Greenland. The Cryosphere Discussions