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Relevance of detail in basal topography for basal slipperiness inversions: a case study on Pine Island Glacier, Antarctica

Abstract:

Given high-resolution satellite-derived surface elevation and velocity data, ice-sheet models generally estimate mechanical basal boundary conditions using surface-to-bed inversion methods. In this work, we address the sensitivity of results from inversion methods to the accuracy of the bed elevation data on Pine Island Glacier. We show that misfit between observations and model output is reduced when high-resolution bed topography is used in the inverse model. By looking at results with a ra...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.3389/feart.2018.00033

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Mathematical Institute
Oxford college:
Christ Church
Role:
Author
ORCID:
0000-0002-1241-7060
More from this funder
Funding agency for:
Farrell, P
Grant:
EP/K030930/1
Publisher:
Frontiers Media Publisher's website
Journal:
Frontiers in Earth Science Journal website
Volume:
6
Article number:
33
Publication date:
2018-01-01
Acceptance date:
2018-03-26
DOI:
ISSN:
2296-6463
Source identifiers:
832582
Pubs id:
pubs:832582
UUID:
uuid:5b26707c-c986-408d-9b01-5d959f9b04c4
Local pid:
pubs:832582
Deposit date:
2018-04-04

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