Non-linear flow modelling of a Martian Lobate Debris Apron
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 informati...
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Cambridge University Press
2019
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ftdoajarticles:oai:doaj.org/article:1f67cff02e624e53a94f126ffe68e017 2023-05-15T16:57:34+02:00 Non-linear flow modelling of a Martian Lobate Debris Apron Louise Steffensen Schmidt Christine Schøtt Hvidberg Jung Rack Kim Nanna Bjørnholt Karlsson 2019-12-01T00:00:00Z https://doi.org/10.1017/jog.2019.54 https://doaj.org/article/1f67cff02e624e53a94f126ffe68e017 EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143019000546/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2019.54 0022-1430 1727-5652 https://doaj.org/article/1f67cff02e624e53a94f126ffe68e017 Journal of Glaciology, Vol 65, Pp 889-899 (2019) Extraterrestrial glaciology glacier flow glacier mass balance glacier modelling ice temperature Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2019 ftdoajarticles https://doi.org/10.1017/jog.2019.54 2023-03-12T01:30:57Z 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 Directory of Open Access Journals: DOAJ Articles Journal of Glaciology 65 254 889 899 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Extraterrestrial glaciology glacier flow glacier mass balance glacier modelling ice temperature Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
Extraterrestrial glaciology glacier flow glacier mass balance glacier modelling ice temperature Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Louise Steffensen Schmidt Christine Schøtt Hvidberg Jung Rack Kim Nanna Bjørnholt Karlsson Non-linear flow modelling of a Martian Lobate Debris Apron |
topic_facet |
Extraterrestrial glaciology glacier flow glacier mass balance glacier modelling ice temperature Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
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 |
Louise Steffensen Schmidt Christine Schøtt Hvidberg Jung Rack Kim Nanna Bjørnholt Karlsson |
author_facet |
Louise Steffensen Schmidt Christine Schøtt Hvidberg Jung Rack Kim Nanna Bjørnholt Karlsson |
author_sort |
Louise Steffensen Schmidt |
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 |
publishDate |
2019 |
url |
https://doi.org/10.1017/jog.2019.54 https://doaj.org/article/1f67cff02e624e53a94f126ffe68e017 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology, Vol 65, Pp 889-899 (2019) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143019000546/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2019.54 0022-1430 1727-5652 https://doaj.org/article/1f67cff02e624e53a94f126ffe68e017 |
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 |
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1766049127208058880 |