No Cover Image

Journal article 132 views 16 downloads

Influence of the grounding zone on the internal structure of ice shelves

K. E. Miles Orcid Logo, B. Hubbard Orcid Logo, Adrian Luckman Orcid Logo, Bernd Kulessa Orcid Logo, Suzanne Bevan Orcid Logo, S. Thompson, Glenn Jones

Nature Communications, Volume: 16, Issue: 1, Start page: 4383

Swansea University Authors: Adrian Luckman Orcid Logo, Bernd Kulessa Orcid Logo, Suzanne Bevan Orcid Logo, Glenn Jones

  • 41467_2025_Article_58973.pdf

    PDF | Version of Record

    © The Author(s) 2025. This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

    Download (6.13MB)

Check full text

DOI (Published version): 10.1038/s41467-025-58973-2

Abstract

Antarctic ice shelves typically comprise continental meteoric ice, in situ-accumulated meteoric ice, and marine ice accumulated at the shelf base. Using borehole optical televiewer logs from across Larsen C Ice Shelf, Antarctic Peninsula, we identify and report an intermediate ice unit, located betw...

Full description

Published in: Nature Communications
ISSN: 2041-1723
Published: Springer Nature 2025
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa69502
first_indexed 2025-05-13T08:29:17Z
last_indexed 2025-05-14T12:29:35Z
id cronfa69502
recordtype SURis
fullrecord <?xml version="1.0"?><rfc1807><datestamp>2025-05-13T09:30:24.5676590</datestamp><bib-version>v2</bib-version><id>69502</id><entry>2025-05-13</entry><title>Influence of the grounding zone on the internal structure of ice shelves</title><swanseaauthors><author><sid>008cb668b2671b653a88677f075799a9</sid><ORCID>0000-0002-9618-5905</ORCID><firstname>Adrian</firstname><surname>Luckman</surname><name>Adrian Luckman</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>52acda616e9f6073cbebf497def874c9</sid><ORCID>0000-0002-4830-4949</ORCID><firstname>Bernd</firstname><surname>Kulessa</surname><name>Bernd Kulessa</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>758d19253522c8c306d4eea0e6e484f6</sid><ORCID>0000-0003-2649-2982</ORCID><firstname>Suzanne</firstname><surname>Bevan</surname><name>Suzanne Bevan</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>7f3ed841381af3c71e3be0dda5e0543a</sid><firstname>Glenn</firstname><surname>Jones</surname><name>Glenn Jones</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2025-05-13</date><deptcode>BGPS</deptcode><abstract>Antarctic ice shelves typically comprise continental meteoric ice, in situ-accumulated meteoric ice, and marine ice accumulated at the shelf base. Using borehole optical televiewer logs from across Larsen C Ice Shelf, Antarctic Peninsula, we identify and report an intermediate ice unit, located between continental and in situ meteoric ice, that is tens of metres thick and formed of layers that progressively increase in dip (by ~60&#xB0;) with depth. The unit&#x2019;s stratigraphic position and depth, supported by flowline modelling, indicate formation at the grounding zone. We hypothesise that the unit forms due to changes in the surface slope of feeder glaciers at the grounding zone, resulting in both variable surface accumulation and intense deformation. The top of the unit also marks the depth at which lateral consistency in radar layering is lost from radargrams, which may, to some degree, mark the depth of grounding zone ice across all ice shelves.</abstract><type>Journal Article</type><journal>Nature Communications</journal><volume>16</volume><journalNumber>1</journalNumber><paginationStart>4383</paginationStart><paginationEnd/><publisher>Springer Nature</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint/><issnElectronic>2041-1723</issnElectronic><keywords/><publishedDay>12</publishedDay><publishedMonth>5</publishedMonth><publishedYear>2025</publishedYear><publishedDate>2025-05-12</publishedDate><doi>10.1038/s41467-025-58973-2</doi><url/><notes/><college>COLLEGE NANME</college><department>Biosciences Geography and Physics School</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>BGPS</DepartmentCode><institution>Swansea University</institution><apcterm>Another institution paid the OA fee</apcterm><funders>This research was funded by the &#x201C;Rift Propagation for Ice sheet models (RiPIce)&#x201D; Natural Environment Research Council grant awarded to Aberystwyth and Swansea Universities (NE/T008016/1). We thank the British Antarctic Survey for logistical support, particularly the project&#x2019;s Field Guides: Samuel Hunt, Sarah Crowsley, and Min Willis.</funders><projectreference/><lastEdited>2025-05-13T09:30:24.5676590</lastEdited><Created>2025-05-13T09:22:59.4325908</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Biosciences, Geography and Physics - Geography</level></path><authors><author><firstname>K. E.</firstname><surname>Miles</surname><orcid>0000-0003-2793-9766</orcid><order>1</order></author><author><firstname>B.</firstname><surname>Hubbard</surname><orcid>0000-0002-3565-3875</orcid><order>2</order></author><author><firstname>Adrian</firstname><surname>Luckman</surname><orcid>0000-0002-9618-5905</orcid><order>3</order></author><author><firstname>Bernd</firstname><surname>Kulessa</surname><orcid>0000-0002-4830-4949</orcid><order>4</order></author><author><firstname>Suzanne</firstname><surname>Bevan</surname><orcid>0000-0003-2649-2982</orcid><order>5</order></author><author><firstname>S.</firstname><surname>Thompson</surname><order>6</order></author><author><firstname>Glenn</firstname><surname>Jones</surname><order>7</order></author></authors><documents><document><filename>69502__34263__1687cd7342284bb888cff394f1ef5104.pdf</filename><originalFilename>41467_2025_Article_58973.pdf</originalFilename><uploaded>2025-05-13T09:22:59.4324878</uploaded><type>Output</type><contentLength>6432832</contentLength><contentType>application/pdf</contentType><version>Version of Record</version><cronfaStatus>true</cronfaStatus><documentNotes>&#xA9; The Author(s) 2025. This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language><licence>http://creativecommons.org/licenses/by/4.0/</licence></document></documents><OutputDurs/></rfc1807>
spelling 2025-05-13T09:30:24.5676590 v2 69502 2025-05-13 Influence of the grounding zone on the internal structure of ice shelves 008cb668b2671b653a88677f075799a9 0000-0002-9618-5905 Adrian Luckman Adrian Luckman true false 52acda616e9f6073cbebf497def874c9 0000-0002-4830-4949 Bernd Kulessa Bernd Kulessa true false 758d19253522c8c306d4eea0e6e484f6 0000-0003-2649-2982 Suzanne Bevan Suzanne Bevan true false 7f3ed841381af3c71e3be0dda5e0543a Glenn Jones Glenn Jones true false 2025-05-13 BGPS Antarctic ice shelves typically comprise continental meteoric ice, in situ-accumulated meteoric ice, and marine ice accumulated at the shelf base. Using borehole optical televiewer logs from across Larsen C Ice Shelf, Antarctic Peninsula, we identify and report an intermediate ice unit, located between continental and in situ meteoric ice, that is tens of metres thick and formed of layers that progressively increase in dip (by ~60°) with depth. The unit’s stratigraphic position and depth, supported by flowline modelling, indicate formation at the grounding zone. We hypothesise that the unit forms due to changes in the surface slope of feeder glaciers at the grounding zone, resulting in both variable surface accumulation and intense deformation. The top of the unit also marks the depth at which lateral consistency in radar layering is lost from radargrams, which may, to some degree, mark the depth of grounding zone ice across all ice shelves. Journal Article Nature Communications 16 1 4383 Springer Nature 2041-1723 12 5 2025 2025-05-12 10.1038/s41467-025-58973-2 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University Another institution paid the OA fee This research was funded by the “Rift Propagation for Ice sheet models (RiPIce)” Natural Environment Research Council grant awarded to Aberystwyth and Swansea Universities (NE/T008016/1). We thank the British Antarctic Survey for logistical support, particularly the project’s Field Guides: Samuel Hunt, Sarah Crowsley, and Min Willis. 2025-05-13T09:30:24.5676590 2025-05-13T09:22:59.4325908 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography K. E. Miles 0000-0003-2793-9766 1 B. Hubbard 0000-0002-3565-3875 2 Adrian Luckman 0000-0002-9618-5905 3 Bernd Kulessa 0000-0002-4830-4949 4 Suzanne Bevan 0000-0003-2649-2982 5 S. Thompson 6 Glenn Jones 7 69502__34263__1687cd7342284bb888cff394f1ef5104.pdf 41467_2025_Article_58973.pdf 2025-05-13T09:22:59.4324878 Output 6432832 application/pdf Version of Record true © The Author(s) 2025. This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). true eng http://creativecommons.org/licenses/by/4.0/
title Influence of the grounding zone on the internal structure of ice shelves
spellingShingle Influence of the grounding zone on the internal structure of ice shelves
Adrian Luckman
Bernd Kulessa
Suzanne Bevan
Glenn Jones
title_short Influence of the grounding zone on the internal structure of ice shelves
title_full Influence of the grounding zone on the internal structure of ice shelves
title_fullStr Influence of the grounding zone on the internal structure of ice shelves
title_full_unstemmed Influence of the grounding zone on the internal structure of ice shelves
title_sort Influence of the grounding zone on the internal structure of ice shelves
author_id_str_mv 008cb668b2671b653a88677f075799a9
52acda616e9f6073cbebf497def874c9
758d19253522c8c306d4eea0e6e484f6
7f3ed841381af3c71e3be0dda5e0543a
author_id_fullname_str_mv 008cb668b2671b653a88677f075799a9_***_Adrian Luckman
52acda616e9f6073cbebf497def874c9_***_Bernd Kulessa
758d19253522c8c306d4eea0e6e484f6_***_Suzanne Bevan
7f3ed841381af3c71e3be0dda5e0543a_***_Glenn Jones
author Adrian Luckman
Bernd Kulessa
Suzanne Bevan
Glenn Jones
author2 K. E. Miles
B. Hubbard
Adrian Luckman
Bernd Kulessa
Suzanne Bevan
S. Thompson
Glenn Jones
format Journal article
container_title Nature Communications
container_volume 16
container_issue 1
container_start_page 4383
publishDate 2025
institution Swansea University
issn 2041-1723
doi_str_mv 10.1038/s41467-025-58973-2
publisher Springer Nature
college_str Faculty of Science and Engineering
hierarchytype
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
active_str 0
description Antarctic ice shelves typically comprise continental meteoric ice, in situ-accumulated meteoric ice, and marine ice accumulated at the shelf base. Using borehole optical televiewer logs from across Larsen C Ice Shelf, Antarctic Peninsula, we identify and report an intermediate ice unit, located between continental and in situ meteoric ice, that is tens of metres thick and formed of layers that progressively increase in dip (by ~60°) with depth. The unit’s stratigraphic position and depth, supported by flowline modelling, indicate formation at the grounding zone. We hypothesise that the unit forms due to changes in the surface slope of feeder glaciers at the grounding zone, resulting in both variable surface accumulation and intense deformation. The top of the unit also marks the depth at which lateral consistency in radar layering is lost from radargrams, which may, to some degree, mark the depth of grounding zone ice across all ice shelves.
published_date 2025-05-12T06:01:42Z
_version_ 1837325460301676544
score 11.069616

Similar Items