Brief communication: Rapid acceleration of the Brunt Ice Shelf after calving of iceberg A-81

Marsh, Oliver J.; Luckman, Adrian; Hodgson, Dominic A.

doi:10.5194/tc-18-705-2024

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Brief communication: Rapid acceleration of the Brunt Ice Shelf after calving of iceberg A-81

Oliver J. Marsh

, Adrian Luckman

, Dominic A. Hodgson

The Cryosphere, Volume: 18, Issue: 2, Pages: 705 - 710

Swansea University Author: Adrian Luckman

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DOI (Published version): 10.5194/tc-18-705-2024

Abstract

The Brunt Ice Shelf, Antarctica, accelerated rapidly from a velocity of 900 to 1500 m a−1 during 6 months, following calving of a 1500 km2 iceberg on 22 January 2023. The immediate response to calving was observed as a change to the rate of acceleration and not to velocity directly. Acceleration inc...

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Published in:	The Cryosphere
ISSN:	1994-0424
Published:	Copernicus GmbH 2024
Online Access:	Check full text
URI:	https://cronfa.swan.ac.uk/Record/cronfa65268
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first_indexed	2023-12-12T10:01:15Z
last_indexed	2023-12-12T10:01:15Z
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spelling	v2 65268 2023-12-12 Brief communication: Rapid acceleration of the Brunt Ice Shelf after calving of iceberg A-81 008cb668b2671b653a88677f075799a9 0000-0002-9618-5905 Adrian Luckman Adrian Luckman true false 2023-12-12 BGPS The Brunt Ice Shelf, Antarctica, accelerated rapidly from a velocity of 900 to 1500 m a−1 during 6 months, following calving of a 1500 km2 iceberg on 22 January 2023. The immediate response to calving was observed as a change to the rate of acceleration and not to velocity directly. Acceleration increased by a factor of 10, with a second, smaller calving at the end of June 2023, leading to further tripling of acceleration. The acceleration was caused by the reduction of buttressing at the McDonald Ice Rumples, leading to high localised strain rates, which reduce the strength of the remaining ice shelf. Journal Article The Cryosphere 18 2 705 710 Copernicus GmbH 1994-0424 13 2 2024 2024-02-13 10.5194/tc-18-705-2024 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University This research has been supported by the Natural Environment Research Council (grant nos. NE/T008016/1 and NE/X014991/1) 2024-05-30T13:58:05.6531925 2023-12-12T09:57:37.7843146 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography Oliver J. Marsh 0000-0001-7874-514x 1 Adrian Luckman 0000-0002-9618-5905 2 Dominic A. Hodgson 0000-0002-3841-3746 3 65268__29970__b98906c9f7a046149da122615241e0f9.pdf 65268.pdf 2024-04-10T10:23:57.3026974 Output 3988844 application/pdf Version of Record true ©Author(s) 2024. This work is distributed under the Creative Commons Attribution 4.0 License. true eng https://creativecommons.org/licenses/by/4.0/
title	Brief communication: Rapid acceleration of the Brunt Ice Shelf after calving of iceberg A-81
spellingShingle	Brief communication: Rapid acceleration of the Brunt Ice Shelf after calving of iceberg A-81 Adrian Luckman
title_short	Brief communication: Rapid acceleration of the Brunt Ice Shelf after calving of iceberg A-81
title_full	Brief communication: Rapid acceleration of the Brunt Ice Shelf after calving of iceberg A-81
title_fullStr	Brief communication: Rapid acceleration of the Brunt Ice Shelf after calving of iceberg A-81
title_full_unstemmed	Brief communication: Rapid acceleration of the Brunt Ice Shelf after calving of iceberg A-81
title_sort	Brief communication: Rapid acceleration of the Brunt Ice Shelf after calving of iceberg A-81
author_id_str_mv	008cb668b2671b653a88677f075799a9
author_id_fullname_str_mv	008cb668b2671b653a88677f075799a9_***_Adrian Luckman
author	Adrian Luckman
author2	Oliver J. Marsh Adrian Luckman Dominic A. Hodgson
format	Journal article
container_title	The Cryosphere
container_volume	18
container_issue	2
container_start_page	705
publishDate	2024
institution	Swansea University
issn	1994-0424
doi_str_mv	10.5194/tc-18-705-2024
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
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description	The Brunt Ice Shelf, Antarctica, accelerated rapidly from a velocity of 900 to 1500 m a−1 during 6 months, following calving of a 1500 km2 iceberg on 22 January 2023. The immediate response to calving was observed as a change to the rate of acceleration and not to velocity directly. Acceleration increased by a factor of 10, with a second, smaller calving at the end of June 2023, leading to further tripling of acceleration. The acceleration was caused by the reduction of buttressing at the McDonald Ice Rumples, leading to high localised strain rates, which reduce the strength of the remaining ice shelf.
published_date	2024-02-13T13:58:05Z
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score	11.012678

Brief communication: Rapid acceleration of the Brunt Ice Shelf after calving of iceberg A-81

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