Hannah Reynolds
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Understanding geophysical signals associated with magma and heat transfer
Personal Project in NEMOH
This research project aims to advance the general understanding of heat flow in volcanoes, and how they relate to movement and the emplacement of magma, by analysing and advancing models of heat transfer from magma and hot rocks to the surrounding rock, groundwater and geothermal fluids. Time-dependent conceptual, analytical and numerical models of heat transfer will be developed using thermal data. The relationship between heat transfer and deformation will also be considered. The research will concentrate on ice-covered volcanoes in Iceland, namely Grímsvötn, Katla and Eyjafjallajökull. Extensive ice cover provides a special situation where the ice acts as a calorimeter allowing quantification of thermal signals from subsurface magmatic sources; this would usually be difficult due to the large uncertainties in measuring ground to atmosphere heat fluxes. In-depth studies of time-dependent variations exploring the parameter space for country rock heat conductivity and permeability will be performed. In particular, the relation of these signals with magmatic sources will be analysed using numerical models such as TOUGH.
Scientific Background
I graduated from the University of Edinburgh in 2009, with BSc (Hons) in Astrophysics. Following this I found that my interests lay within earth sciences and particularly natural hazards, leading to my decision to undertake MSc Volcanology and Geological Hazards at Lancaster University, graduating in 2012. My MSc research involved using an analogue experimental approach to investigate the hypothesis that subglacial lava lobes were emplaced within pre-formed ice cavities.
About me
Contact
University of Iceland
Institute of Earth Sciences
Sturlugata 7, Askja
101 Reykjavík
email: hir10 
hi.is
