I use mathematical analysis and computational simulations to understand a wide range of geophysical and environmental fluid flows. I focus on situations in which melting and solidification are significant, such as the transport of molten magma from deep within the Earth to the surface where it erupts in volcanic systems.
In January 2016, I moved to the FoaLab Laboratory for Geodynamics to work on subduction-zone geodynamics with Prof. Richard Katz. Subduction zones are a crucial part of the Earth’s tectonic system, which controls the cycling of light chemicals such as water and carbon on long geological timescales. They are active magmatic systems, and we plan to build physical models of the coupled fluid flow and thermal and chemical transport.
I previously focussed on the relationship between fluid flow and the formation of sea ice. Sea ice is a complex permeable medium, and fluid flow within it can be described using similar methods to liquid magma flowing in the solid mantle matrix. Like magmatic systems, sea ice can sometimes originate as a crystal suspension called frazil ice, which is the fastest and most dramatic mode of formation. I worked as a postdoctoral researcher in the Department of Physics with the group of Prof. Andrew Wells on frazil ice. I studied Mathematics, leading to a PhD on convective flow within sea ice in the Department of Applied Mathematics and Theoretical Physics at the University of Cambridge, supervised by Prof. Grae Worster.
View Selected Publications
D. W. Rees Jones & M. G. Worster (2013). Fluxes through steady chimneys in a mushy layer during binary alloy solidification. J. Fluid Mech., 714, 127–151.
D. W. Rees Jones & M. G. Worster (2013). A simple dynamical model for gravity drainage of brine from growing sea ice. Geophys. Res. Lett., 40(2), 307–311.
D. W. Rees Jones & M. G. Worster (2014). A physically based parameterization of gravity drainage for sea-ice modeling. J. Geophys. Res., 119.
D. W. Rees Jones & M. G. Worster (2015). On the thermodynamic boundary conditions of a solidifying mushy layer with outflow. J. Fluid Mech., 762.
M. G. Worster & D. W. Rees Jones (2015). Sea ice thermodynamics and brine drainage. Phil. Trans. R. Soc. A, 373.
D. W. Rees Jones & A. J. Wells (2015). The solidification of disk-shaped crystals from a weakly supercooled binary melt. Phys. Rev. E., 72.
C. Horvat, D. W. Rees Jones, S. Iams, D. Schroeder, D. Flocco, D. Feltham. The frequency and extent of sub-ice phytoplankton blooms in the Arctic Ocean. (under review).
D. W. Rees Jones, R. F. Katz, J. F. Rudge and M. Tian. Thermal impact of magmatism in subduction zones. (under review). arXiv version.