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Brief communication: Thwaites Glacier cavity evolution

Suzanne Bevan Orcid Logo, Adrian Luckman Orcid Logo, Douglas I. Benn, Susheel Adusumilli, Anna Crawford

The Cryosphere, Volume: 15, Issue: 7, Pages: 3317 - 3328

Swansea University Authors: Suzanne Bevan Orcid Logo, Adrian Luckman Orcid Logo

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DOI (Published version): 10.5194/tc-15-3317-2021

Abstract

Between 2014 and 2017, ocean melt eroded a large cavity beneath and along the western margin of the fast-flowing core of Thwaites Glacier. Here we show that from2017 to the end of 2020 the cavity persisted but did not ex-pand. This behaviour, of melt concentrated at the groundingline within confined...

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Published in: The Cryosphere
ISSN: 1994-0424
Published: Copernicus GmbH 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa56442
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last_indexed 2023-01-11T14:35:40Z
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spelling 2022-07-05T15:30:18.9432940 v2 56442 2021-03-15 Brief communication: Thwaites Glacier cavity evolution 758d19253522c8c306d4eea0e6e484f6 0000-0003-2649-2982 Suzanne Bevan Suzanne Bevan true false 008cb668b2671b653a88677f075799a9 0000-0002-9618-5905 Adrian Luckman Adrian Luckman true false 2021-03-15 BGPS Between 2014 and 2017, ocean melt eroded a large cavity beneath and along the western margin of the fast-flowing core of Thwaites Glacier. Here we show that from2017 to the end of 2020 the cavity persisted but did not ex-pand. This behaviour, of melt concentrated at the groundingline within confined sub-shelf cavities, fits with prior observations and modelling studies. We also show that acceleration and thinning of Thwaites Glacier grounded ice continued, with an increase in speed of 400 m a−1and a thinning rate of at least 1.5 m a−1, between 2012 and 2020. Journal Article The Cryosphere 15 7 3317 3328 Copernicus GmbH 1994-0424 Thwaites Glacier, ocean melt 19 7 2021 2021-07-19 10.5194/tc-15-3317-2021 The bed data were downloaded from the UK Polar Data Centre. COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University External research funder(s) paid the OA fee (includes OA grants disbursed by the Library) This research has been supported by the Natural Environment Research Council (grant nos. NE/P011365/1 and NE/S006605/1) NE/P011365/1 and NE/S006605/1) 2022-07-05T15:30:18.9432940 2021-03-15T09:26:24.2888708 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography Suzanne Bevan 0000-0003-2649-2982 1 Adrian Luckman 0000-0002-9618-5905 2 Douglas I. Benn 3 Susheel Adusumilli 4 Anna Crawford 5 56442__20437__486b27fef52a44a186a569dd2dd1290f.pdf 56442.pdf 2021-07-21T10:32:15.9718323 Output 20004771 application/pdf Version of Record true © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License true eng https://creativecommons.org/licenses/by/4.0/ 103 true https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=7803de8b-8a74-466b-888e-e8c737bf21ce false
title Brief communication: Thwaites Glacier cavity evolution
spellingShingle Brief communication: Thwaites Glacier cavity evolution
Suzanne Bevan
Adrian Luckman
title_short Brief communication: Thwaites Glacier cavity evolution
title_full Brief communication: Thwaites Glacier cavity evolution
title_fullStr Brief communication: Thwaites Glacier cavity evolution
title_full_unstemmed Brief communication: Thwaites Glacier cavity evolution
title_sort Brief communication: Thwaites Glacier cavity evolution
author_id_str_mv 758d19253522c8c306d4eea0e6e484f6
008cb668b2671b653a88677f075799a9
author_id_fullname_str_mv 758d19253522c8c306d4eea0e6e484f6_***_Suzanne Bevan
008cb668b2671b653a88677f075799a9_***_Adrian Luckman
author Suzanne Bevan
Adrian Luckman
author2 Suzanne Bevan
Adrian Luckman
Douglas I. Benn
Susheel Adusumilli
Anna Crawford
format Journal article
container_title The Cryosphere
container_volume 15
container_issue 7
container_start_page 3317
publishDate 2021
institution Swansea University
issn 1994-0424
doi_str_mv 10.5194/tc-15-3317-2021
publisher Copernicus GmbH
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Geography{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Geography
document_store_str 1
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description Between 2014 and 2017, ocean melt eroded a large cavity beneath and along the western margin of the fast-flowing core of Thwaites Glacier. Here we show that from2017 to the end of 2020 the cavity persisted but did not ex-pand. This behaviour, of melt concentrated at the groundingline within confined sub-shelf cavities, fits with prior observations and modelling studies. We also show that acceleration and thinning of Thwaites Glacier grounded ice continued, with an increase in speed of 400 m a−1and a thinning rate of at least 1.5 m a−1, between 2012 and 2020.
published_date 2021-07-19T20:12:59Z
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