Solar radiative transfer in Antarctic blue ice: spectral considerations, subsurface enhancement, inclusions, and meteorites

Autor: A. R. D. Smedley, G. W. Evatt, A. Mallinson, E. Harvey

Publikováno v: The Cryosphere, Vol 14, Pp 789-809 (2020)

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 of blue ic

Externí odkaz: https://doaj.org/article/c2304a2f0dd2437c9a607747072522e0

The spatial flux of Earth’s meteorite falls found via Antarctic data

Autor: G. W. Evatt, Katherine H. Joy, Andrew R. D. Smedley, I.D. Abrahams, L. Gerrish, L. Hunter, W.H. Tey

Publikováno v: Evatt, G, Smedley, A, Joy, K, Hunter, L, Tey, W H, Abrahams, L D & Gerrish, L 2020, ' The spatial flux of Earth's meteorite falls found via Antarctic data ', Geology, vol. 48, no. 7, pp. 683-687 . https://doi.org/10.1130/G46733.1

Contemporary calculations for the flux of extraterrestrial material falling to the Earth’s surface (each event referred to as a “fall”) rely upon either short-duration fireball monitoring networks or spatially limited ground-based meteorite sea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5bd776b7dec3e501dfd065e9b98aad91
https://doi.org/10.1130/g46733.1

Design and construction of a bespoke system for the detection of buried, iron-rich meteorites in Antarctica

Autor: Wouter van Verre, M. C. Rose, G. W. Evatt, Anthony Peyton, Liam A Marsh, Andrew R. D. Smedley, John Wilson

Publikováno v: Wilson, J W, Marsh, L, Van Verre, W, Rose, M, Evatt, G, Smedley, A & Peyton, A 2020, ' Design and construction of a bespoke system for the detection of buried, iron-rich meteorites in Antarctica ', Antarctic Science, vol. 32, no. 1, pp. 58-69 . https://doi.org/10.1017/S0954102019000531

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 apparent s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60d81b76ff48d329c51a76797b5ed232
https://www.research.manchester.ac.uk/portal/en/publications/design-and-construction-of-a-bespoke-system-for-the-detection-of-buried-ironrich-meteorites-in-antarctica(3d5a7c44-7d53-49f8-b837-5db748fbbb7a).html

Solar SW radiative transfer in bubbled ice: spectral considerations, subsurface enhancement, and inclusions

Autor: Andrew R. D. Smedley, G. W. Evatt, Eleanor Harvey, Amy Mallinson

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 to the ice.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2a3810c45d6ee1f42fc739a8d8867f13
https://doi.org/10.5194/tc-2018-79

Röthlisberger channels with finite ice depth and open channel flow

Autor: G. W. Evatt

Publikováno v: Evatt, G W 2015, ' Rothlisberger channels with finite ice depth and open channel flow ', Annals of Glaciology, vol. 56, no. 70 . https://doi.org/10.3189/2015AoG70A992

The theoretical basis of subglacial channel dynamics can be traced back to the work of Röthlisberger (1972) and Nye (1953). Röthlisberger (1972) considered the channels’ behaviour to be governed by a mix between water friction melting back the ch

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a75e147c186d40ad4ac9bb7ac33db82
https://doi.org/10.3189/2015aog70a992