Mechanical analysis of pinning points in the Ross Ice Shelf, Antarctica
Ice shelves regulate the rate of ice-sheet discharge along much of the Antarctic coastline. Pinning points, sites of localised grounding within floating ice, can in turn, regulate the flow and thickness of an ice shelf. While the net resistive effect of ice shelves has been quantified in a systemati...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2019-04-01
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| Series: | Annals of Glaciology |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S0260305518000319/type/journal_article |
| _version_ | 1811157313540587520 |
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| author | Holly Still Adam Campbell Christina Hulbe |
| author_facet | Holly Still Adam Campbell Christina Hulbe |
| author_sort | Holly Still |
| collection | DOAJ |
| description | Ice shelves regulate the rate of ice-sheet discharge along much of the Antarctic coastline. Pinning points, sites of localised grounding within floating ice, can in turn, regulate the flow and thickness of an ice shelf. While the net resistive effect of ice shelves has been quantified in a systematic way, few extant pinning points have been examined in detail. Here, complete force budgets are calculated and examined for ice rises and rumples in the Ross Ice Shelf, West Antarctica. The diverse features have different effects on ice shelf mechanics that do not depend simply on their size but may, we conclude, depend on the properties of seafloor materials. |
| first_indexed | 2024-04-10T05:05:12Z |
| format | Article |
| id | doaj.art-c35786e63c6b45f58ed584091657d375 |
| institution | Directory Open Access Journal |
| issn | 0260-3055 1727-5644 |
| language | English |
| last_indexed | 2024-04-10T05:05:12Z |
| publishDate | 2019-04-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Annals of Glaciology |
| spelling | doaj.art-c35786e63c6b45f58ed584091657d3752023-03-09T12:27:33ZengCambridge University PressAnnals of Glaciology0260-30551727-56442019-04-0160324110.1017/aog.2018.31Mechanical analysis of pinning points in the Ross Ice Shelf, AntarcticaHolly Still0https://orcid.org/0000-0002-6021-1964Adam Campbell1https://orcid.org/0000-0003-2366-2894Christina Hulbe2https://orcid.org/0000-0003-4765-7037National School of Surveying, University of Otago, Dunedin, New Zealand E-mail:National School of Surveying, University of Otago, Dunedin, New Zealand E-mail:National School of Surveying, University of Otago, Dunedin, New Zealand E-mail:Ice shelves regulate the rate of ice-sheet discharge along much of the Antarctic coastline. Pinning points, sites of localised grounding within floating ice, can in turn, regulate the flow and thickness of an ice shelf. While the net resistive effect of ice shelves has been quantified in a systematic way, few extant pinning points have been examined in detail. Here, complete force budgets are calculated and examined for ice rises and rumples in the Ross Ice Shelf, West Antarctica. The diverse features have different effects on ice shelf mechanics that do not depend simply on their size but may, we conclude, depend on the properties of seafloor materials.https://www.cambridge.org/core/product/identifier/S0260305518000319/type/journal_articleAntarctic glaciologyice riseice shelves |
| spellingShingle | Holly Still Adam Campbell Christina Hulbe Mechanical analysis of pinning points in the Ross Ice Shelf, Antarctica Annals of Glaciology Antarctic glaciology ice rise ice shelves |
| title | Mechanical analysis of pinning points in the Ross Ice Shelf, Antarctica |
| title_full | Mechanical analysis of pinning points in the Ross Ice Shelf, Antarctica |
| title_fullStr | Mechanical analysis of pinning points in the Ross Ice Shelf, Antarctica |
| title_full_unstemmed | Mechanical analysis of pinning points in the Ross Ice Shelf, Antarctica |
| title_short | Mechanical analysis of pinning points in the Ross Ice Shelf, Antarctica |
| title_sort | mechanical analysis of pinning points in the ross ice shelf antarctica |
| topic | Antarctic glaciology ice rise ice shelves |
| url | https://www.cambridge.org/core/product/identifier/S0260305518000319/type/journal_article |
| work_keys_str_mv | AT hollystill mechanicalanalysisofpinningpointsintherossiceshelfantarctica AT adamcampbell mechanicalanalysisofpinningpointsintherossiceshelfantarctica AT christinahulbe mechanicalanalysisofpinningpointsintherossiceshelfantarctica |