Articles | Volume 8, issue 2
https://doi.org/10.5194/gi-8-293-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gi-8-293-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
09 Dec 2019
Research article |
| 09 Dec 2019
| 09 Dec 2019
Creating HiRISE digital elevation models for Mars using the open-source Ames Stereo Pipeline
Geography and Earth Sciences, Aberystwyth University, Llandinam Building, Penglais Campus, Aberystwyth, SY23 3DB, UK
Department of Geography, The University of Sheffield, Sheffield, S10 2TN, UK
Geography and Earth Sciences, Aberystwyth University, Llandinam Building, Penglais Campus, Aberystwyth, SY23 3DB, UK
Bryn Hubbard
Geography and Earth Sciences, Aberystwyth University, Llandinam Building, Penglais Campus, Aberystwyth, SY23 3DB, UK
Department of Geography, The University of Sheffield, Sheffield, S10 2TN, UK
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The Cryosphere, 18, 4873–4916, https://doi.org/10.5194/tc-18-4873-2024, https://doi.org/10.5194/tc-18-4873-2024, 2024
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Terrain formerly occupied by ice sheets in the last ice age allows us to parameterize models of basal water flow using terrain and data unavailable beneath current ice sheets. Using GlaDS, a 2D basal hydrology model, we explore the origin of murtoos, a specific landform found throughout Finland that is thought to mark the upper limit of channels beneath the ice. Our results validate many of the predictions of murtoo origins and demonstrate that such models can be used to explore past ice sheets.
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The Cryosphere, 18, 4873–4916, https://doi.org/10.5194/tc-18-4873-2024, https://doi.org/10.5194/tc-18-4873-2024, 2024
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Terrain formerly occupied by ice sheets in the last ice age allows us to parameterize models of basal water flow using terrain and data unavailable beneath current ice sheets. Using GlaDS, a 2D basal hydrology model, we explore the origin of murtoos, a specific landform found throughout Finland that is thought to mark the upper limit of channels beneath the ice. Our results validate many of the predictions of murtoo origins and demonstrate that such models can be used to explore past ice sheets.
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The Cryosphere, 18, 4645–4669, https://doi.org/10.5194/tc-18-4645-2024, https://doi.org/10.5194/tc-18-4645-2024, 2024
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Liquid veins and grain boundaries in ice can accelerate the decay of climate signals in δ18O and δD by short-circuiting the slow isotopic diffusion in crystal grains. This theory for "excess diffusion" has not been confirmed experimentally. We show that, if the mechanism occurs, then distinct isotopic patterns must form near grain junctions, offering a testable prediction of the theory. We calculate the patterns and describe an experimental scheme for testing ice-core samples for the mechanism.
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The Cryosphere, 9, 1223–1227, https://doi.org/10.5194/tc-9-1223-2015, https://doi.org/10.5194/tc-9-1223-2015, 2015
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N. F. Glasser, S. J. A. Jennings, M. J. Hambrey, and B. Hubbard
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B. Hubbard, C. Souness, and S. Brough
The Cryosphere, 8, 2047–2061, https://doi.org/10.5194/tc-8-2047-2014, https://doi.org/10.5194/tc-8-2047-2014, 2014
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G. P. Petropoulos, H. M. Griffiths, T. N. Carlson, P. Ioannou-Katidis, and T. Holt
Geosci. Model Dev., 7, 1873–1887, https://doi.org/10.5194/gmd-7-1873-2014, https://doi.org/10.5194/gmd-7-1873-2014, 2014
T. O. Holt, N. F. Glasser, D. J. Quincey, and M. R. Siegfried
The Cryosphere, 7, 797–816, https://doi.org/10.5194/tc-7-797-2013, https://doi.org/10.5194/tc-7-797-2013, 2013
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J. Silén, H. Cottin, M. Hilchenbach, J. Kissel, H. Lehto, S. Siljeström, and K. Varmuza
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P. Robert, N. Cornilleau-Wehrlin, R. Piberne, Y. de Conchy, C. Lacombe, V. Bouzid, B. Grison, D. Alison, and P. Canu
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Y. V. Khotyaintsev, P.-A. Lindqvist, C. M. Cully, A. I. Eriksson, and M. André
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N. Doss, A. N. Fazakerley, B. Mihaljčić, A. D. Lahiff, R. J. Wilson, D. Kataria, I. Rozum, G. Watson, and Y. Bogdanova
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Short summary
Currently, there exist thousands of unprocessed stereo pairs of satellite imagery which can be used to create models of the surface of Mars. This paper sets out a new open–source and free to use pipeline for creating these models. Our pipeline produces models of comparable quality to the limited number released to date but remains free to use and easily implemented by researchers, who may not necessarily have prior experience of DEM creation.
Currently, there exist thousands of unprocessed stereo pairs of satellite imagery which can be...
