Geoffrey W. Evatt
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View article: A reassessment of ice cliff dynamics upon debris-covered glaciers
A reassessment of ice cliff dynamics upon debris-covered glaciers Open
We present a new model for understanding ice cliff dynamics within a debris-covered glacier ablation zone. This simple energy-balance model incorporates a moving frame of reference, made necessary by the melt of the surrounding debris-cove…
View article: Capital ideas: optimal capital accumulation strategies for a bank and its regulator
Capital ideas: optimal capital accumulation strategies for a bank and its regulator Open
We formulate a continuous-time model of a deposit taking bank, operating subject to capital adequacy regulation, and where the bank's loans are exposed to default risk. The bank maximises its market value of equity by appropriately control…
View article: Solar radiative transfer in Antarctic blue ice: spectral considerations, subsurface enhancement, inclusions, and meteorites
Solar radiative transfer in Antarctic blue ice: spectral considerations, subsurface enhancement, inclusions, and meteorites Open
We describe and validate a Monte Carlo model to track photons over the full range of solar wavelengths as they travel into optically thick Antarctic blue ice. The model considers both reflection and transmission of radiation at the surface…
View article: Design and construction of a bespoke system for the detection of buried, iron-rich meteorites in Antarctica
Design and construction of a bespoke system for the detection of buried, iron-rich meteorites in Antarctica Open
Iron-rich meteorites are significantly underrepresented in collection statistics from Antarctica. This has led to a hypothesis that there is a sparse layer of iron-rich meteorites hidden below the surface of the ice, thereby explaining the…
View article: Supplementary material to "Solar radiative transfer in Antarctic blue ice: spectral considerations, subsurface enhancement, and inclusions"
Supplementary material to "Solar radiative transfer in Antarctic blue ice: spectral considerations, subsurface enhancement, and inclusions" Open
S1 Solar zenith angle dependenceHere we investigate the influence of the incident solar zenith angle (SZA).For simplicity, the results presented in the main text have relied on the assumption that the incoming solar flux arrives from a dif…
View article: Solar radiative transfer in Antarctic blue ice: spectral considerations, subsurface enhancement, and inclusions
Solar radiative transfer in Antarctic blue ice: spectral considerations, subsurface enhancement, and inclusions Open
We describe and validate a Monte Carlo model to track photons over the full range of solar wavelengths as they travel into optically thick Antarctic blue ice. The model considers both reflection and transmission of radiation at the surface…
View article: Supplementary material to "Solar SW radiative transfer in bubbled ice: spectral considerations,subsurface enhancement, and inclusions"
Supplementary material to "Solar SW radiative transfer in bubbled ice: spectral considerations,subsurface enhancement, and inclusions" Open
S1 Solar zenith angle dependenceHere we investigate the influence of the incident solar zenith angle.For simplicity, the results presented in the main text have relied on the assumption that the incoming solar flux arrives from a diffuse h…
View article: Solar SW radiative transfer in bubbled ice: spectral considerations,subsurface enhancement, and inclusions
Solar SW radiative transfer in bubbled ice: spectral considerations,subsurface enhancement, and inclusions Open
We describe and validate a Monte Carlo model to track photons over the full range of solar wavelengths as they travel into optically thick bubbled ice. The model considers surface effects, scattering by bubbles and spectral absorption due …
View article: The secret life of ice sails
The secret life of ice sails Open
We present the first dedicated study into the phenomenon of ice sails . These are clean ice structures that protrude from the surface of a small number of debris-covered glaciers and can grow to heights of over 25 m. We draw together what …