Non-linear flow modelling of a Martian Lobate Debris Apron

Schmidt, Louise Steffensen; Hvidberg, Christine Schøtt; Kim, Jung Rack; Karlsson, Nanna Bjørnholt

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dc.contributor	Háskóli Íslands
dc.contributor	University of Iceland
dc.contributor.author	Schmidt, Louise Steffensen
dc.contributor.author	Hvidberg, Christine Schøtt
dc.contributor.author	Kim, Jung Rack
dc.contributor.author	Karlsson, Nanna Bjørnholt
dc.date.accessioned	2020-02-26T09:24:20Z
dc.date.available	2020-02-26T09:24:20Z
dc.date.issued	2019-09-30
dc.identifier.citation	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
dc.identifier.issn	0022-1430
dc.identifier.issn	1727-5652 (eISSN)
dc.identifier.uri	https://hdl.handle.net/20.500.11815/1551
dc.description	Publisher's version (útgefin grein)
dc.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.
dc.description.sponsorship	LSS is supported by the University of Iceland Eimskip Fund. The Centre for Ice and Climate is funded by the Danish National Research Foundation. We gratefully acknowledge Isaac Smith, Michael Sori and an anonymous reviewer whose insightful comments and suggestions improved the quality of this manuscript. The data and results from this study can be obtained by contacting the corresponding author. HRSC products are freely accessible via Planetary Science Archive (PSA) of European Space Agency or Planetary Data System (PDS) of NASA.
dc.format.extent	889-899
dc.language.iso	en
dc.publisher	Cambridge University Press (CUP)
dc.relation.ispartofseries	Journal of Glaciology;65(254)
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Extraterrestrial glaciology
dc.subject	Glacier flow
dc.subject	Glacier mass balance
dc.subject	Glacier modelling
dc.subject	Ice temperature
dc.subject	Jöklafræði
dc.subject	Mars (reikistjarna)
dc.subject	Jöklarannsóknir
dc.title	Non-linear flow modelling of a Martian Lobate Debris Apron
dc.type	info:eu-repo/semantics/article
dcterms.license	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.
dc.description.version	Peer Reviewed
dc.identifier.journal	Journal of Glaciology
dc.identifier.doi	10.1017/jog.2019.54
dc.relation.url	https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143019000546
dc.contributor.department	Jarðvísindadeild (HÍ)
dc.contributor.department	Faculty of Earth Sciences (UI)
dc.contributor.school	School of Engineering and Natural Sciences (UI)
dc.contributor.school	Verkfræði- og náttúruvísindasvið (HÍ)