Non-linear flow modelling of a Martian Lobate Debris Apron
Abstract The Martian mid-latitudes contain numerous small water-ice deposits, collectively termed viscous flow features (VFFs). The shape and topography of the deposits contain information on their past flow history and formation process. In order to access this information, it is imperative to get...
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Online Access: | http://dx.doi.org/10.1017/jog.2019.54 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143019000546 |
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crcambridgeupr:10.1017/jog.2019.54 2024-03-03T08:46:02+00:00 Non-linear flow modelling of a Martian Lobate Debris Apron Schmidt, Louise Steffensen Hvidberg, Christine Schøtt Kim, Jung Rack Karlsson, Nanna Bjørnholt 2019 http://dx.doi.org/10.1017/jog.2019.54 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143019000546 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Journal of Glaciology volume 65, issue 254, page 889-899 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 2019 crcambridgeupr https://doi.org/10.1017/jog.2019.54 2024-02-08T08:43:06Z Abstract The Martian mid-latitudes contain numerous small water-ice deposits, collectively termed viscous flow features (VFFs). The shape and topography of the deposits contain information on their past flow history and formation process. In order to access this information, it is imperative to get information on their deformational properties. Here we use a high-resolution digital topography map and ice-penetrating radar data in combination with an inverse method to constrain the deformational properties of a lobate debris apron, a class of VFF, in the southern hemisphere of Mars. We find that while the creep parameter and accumulation rates are not well constrained in absolute values, their ratio is robust. We also find that the creep exponent is most likely n ≤ 3. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 65 254 889 899 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Schmidt, Louise Steffensen Hvidberg, Christine Schøtt Kim, Jung Rack Karlsson, Nanna Bjørnholt Non-linear flow modelling of a Martian Lobate Debris Apron |
topic_facet |
Earth-Surface Processes |
description |
Abstract The Martian mid-latitudes contain numerous small water-ice deposits, collectively termed viscous flow features (VFFs). The shape and topography of the deposits contain information on their past flow history and formation process. In order to access this information, it is imperative to get information on their deformational properties. Here we use a high-resolution digital topography map and ice-penetrating radar data in combination with an inverse method to constrain the deformational properties of a lobate debris apron, a class of VFF, in the southern hemisphere of Mars. We find that while the creep parameter and accumulation rates are not well constrained in absolute values, their ratio is robust. We also find that the creep exponent is most likely n ≤ 3. |
format |
Article in Journal/Newspaper |
author |
Schmidt, Louise Steffensen Hvidberg, Christine Schøtt Kim, Jung Rack Karlsson, Nanna Bjørnholt |
author_facet |
Schmidt, Louise Steffensen Hvidberg, Christine Schøtt Kim, Jung Rack Karlsson, Nanna Bjørnholt |
author_sort |
Schmidt, Louise Steffensen |
title |
Non-linear flow modelling of a Martian Lobate Debris Apron |
title_short |
Non-linear flow modelling of a Martian Lobate Debris Apron |
title_full |
Non-linear flow modelling of a Martian Lobate Debris Apron |
title_fullStr |
Non-linear flow modelling of a Martian Lobate Debris Apron |
title_full_unstemmed |
Non-linear flow modelling of a Martian Lobate Debris Apron |
title_sort |
non-linear flow modelling of a martian lobate debris apron |
publisher |
Cambridge University Press (CUP) |
publishDate |
2019 |
url |
http://dx.doi.org/10.1017/jog.2019.54 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143019000546 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 65, issue 254, page 889-899 ISSN 0022-1430 1727-5652 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/jog.2019.54 |
container_title |
Journal of Glaciology |
container_volume |
65 |
container_issue |
254 |
container_start_page |
889 |
op_container_end_page |
899 |
_version_ |
1792501844673560576 |