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Non-linear flow modelling of a Martian Lobate Debris Apron

Non-linear flow modelling of a Martian Lobate Debris Apron

Title: Non-linear flow modelling of a Martian Lobate Debris Apron
Author: Schmidt, Louise Steffensen
Hvidberg, Christine Schøtt
Kim, Jung Rack
Karlsson, Nanna Bjørnholt
Date: 2019-09-30
Language: English
Scope: 889-899
University/Institute: Háskóli Íslands
University of Iceland
School: School of Engineering and Natural Sciences (UI)
Verkfræði- og náttúruvísindasvið (HÍ)
Department: Jarðvísindadeild (HÍ)
Faculty of Earth Sciences (UI)
Series: Journal of Glaciology;65(254)
ISSN: 0022-1430
1727-5652 (eISSN)
DOI: 10.1017/jog.2019.54
Subject: Extraterrestrial glaciology; Glacier flow; Glacier mass balance; Glacier modelling; Ice temperature; Jöklafræði; Mars (reikistjarna); Jöklarannsóknir
URI: https://hdl.handle.net/20.500.11815/1551

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Schmidt, L., Hvidberg, C., Kim, J., & Karlsson, N. (2019). Non-linear flow modelling of a Martian Lobate Debris Apron. Journal of Glaciology, 65(254), 889-899. doi:10.1017/jog.2019.54


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.


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This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.

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