Research Interests

Frazil ice dynamics in mixed layers and subglacial plumes

in porous media; sea ice and magmatic systems

Convection, effect on sub-ice light and ecology

Mushy-layer models, thermodynamics and brine drainage

Magmatic response to glacial cycles, feedbacks through carbon outgassing

Thermal structure, volatiles and the location of arc volcanoes

Featured Publications

The Cryosphere

The cooling of water beneath its freezing point, called supercooling, triggers the formation of frazil ice. We develop simple continuum models of populations of frazil-ice crystals. We use these models to understand the dynamics of frazil ice in mixed layers at the ocean surface and in subglacial plumes beneath floating ice shelves
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Publications

Please contact me if you need access to PDFs of papers. In some cases, the PDF links below point to an Accepted Manuscript in an open-source repository.

(2022). Physics of Melt Extraction from the Mantle: Speed and Style. Annual Review of Earth and Planetary Sciences.

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(2021). Magmatic channelization by reactive and shear-driven instabilities at mid-ocean ridges: a combined analysis. Geophysical Journal International.

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(2020). Fast magma ascent, revised estimates from the deglaciation of Iceland. Earth and Planetary Science Letters.

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(2020). The effect of melt pond geometry on the distribution of solar energy under first‐year sea ice. Geophysical Research Letters.

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(2019). Devolatilization of subducting slabs, Part I: Thermodynamic parameterization and open system effects. Geochemistry Geophysics Geosystems.

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(2019). Devolatilization of subducting slabs, Part II: Volatile fluxes and storage. Geochemistry Geophysics Geosystems.

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(2019). Consequences of glacial cycles for magmatism and carbon transport at mid-ocean ridges. Earth and Planetary Science Letters.

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(2018). Reaction-infiltration instability in a compacting porous medium. Journal of Fluid Mechanics.

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(2018). Salinity control of thermal evolution of late summer melt ponds on Arctic sea ice. Geophysical Research Letters.

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(2018). Frazil-ice growth rate and dynamics in mixed layers and sub-ice-shelf plumes. The Cryosphere.

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(2018). Thermal impact of magmatism in subduction zones. Earth and Planetary Science Letters.

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(2017). The frequency and extent of sub-ice phytoplankton blooms in the Arctic Ocean. Science Advances.

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(2015). The solidification of disk-shaped crystals from a weakly supercooled binary melt. Physical Review E.

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(2015). Sea ice thermodynamics and brine drainage. Philosophical Transactions of the Royal Society A.

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(2015). On the thermodynamic boundary conditions of a solidifying mushy layer with outflow. Journal of Fluid Mechanics.

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(2014). A physically based parameterization of gravity drainage for sea-ice modeling. Journal of Geophysical Research – Oceans.

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(2013). A simple dynamical model for gravity drainage of brine from growing sea ice. Geophysical Research Letters.

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(2013). Fluxes through steady chimneys in a mushy layer during binary alloy solidification. Journal of Fluid Mechanics.

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