From ice core to ground-penetrating radar: representativeness of SMB at three ice rises along the Princess Ragnhild Coast, East Antarctica
The future contributions of the Antarctic Ice Sheet to sea level rise will depend on the evolution of its surface mass balance (SMB), which could amplify/dampen mass losses increasingly observed at the ice sheet's edge. In situ constraints of SMB over annual-to-decadal timescales consist mostly...
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Cambridge University Press (CUP)
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Online Access: | http://hdl.handle.net/2078.1/269505 https://doi.org/10.1017/jog.2022.39 |
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ftunistlouisbrus:oai:dial.uclouvain.be:boreal:269505 2024-05-12T07:53:40+00:00 From ice core to ground-penetrating radar: representativeness of SMB at three ice rises along the Princess Ragnhild Coast, East Antarctica Cavitte, Marie G.P. Goosse, Hugues Wauthy, Sarah Kausch, Thore Tison, Jean-Louis Van Liefferinge, Brice Pattyn, Frank Lenaerts, Jan T.M. Claeys, Philippe UCL - SST/ELI/ELIC - Earth & Climate 2022 http://hdl.handle.net/2078.1/269505 https://doi.org/10.1017/jog.2022.39 eng eng Cambridge University Press (CUP) boreal:269505 http://hdl.handle.net/2078.1/269505 doi:10.1017/jog.2022.39 urn:ISSN:0022-1430 urn:EISSN:1727-5652 info:eu-repo/semantics/openAccess Journal of Glaciology, Vol. 68, no.272, p. 1221-1233 (2022) glaciology radar accumulation surface mass balance spatial representativity ice core info:eu-repo/semantics/article 2022 ftunistlouisbrus https://doi.org/10.1017/jog.2022.39 2024-04-18T17:09:15Z The future contributions of the Antarctic Ice Sheet to sea level rise will depend on the evolution of its surface mass balance (SMB), which could amplify/dampen mass losses increasingly observed at the ice sheet's edge. In situ constraints of SMB over annual-to-decadal timescales consist mostly of firn/ice cores that have a surface footprint cm. SMB constraints also come from climate models, which have a higher temporal resolution but a larger surface footprint of several km. We use ice-penetrating radar data to obtain an intermediate spatial and temporal resolution SMB record over three ice rises along the Princess Ragnhild Coast. The co-located ice cores allow us to obtain absolute radar-derived SMB rates at a multi-annual-to-decadal temporal resolution. By comparing the ice core SMB measurements and the radar-derived SMB records, we determine that pointwise measurements of SMB are representative of a small surface area, m radius extending from the ice core drill site for the ice rises studied here, and that the pointwise measurements are systematically 7–15 cm w.e. a lower than the mean SMB value calculated for the whole ice rises. However, ice core records are representative of an entire ice rise's temporal variability at the temporal resolution examined. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica ice core Ice Sheet Journal of Glaciology Princess Ragnhild Coast DIAL@USL-B (Université Saint-Louis, Bruxelles) Antarctic East Antarctica Princess Ragnhild Coast ENVELOPE(27.000,27.000,-70.500,-70.500) The Antarctic Journal of Glaciology 68 272 1221 1233 |
institution |
Open Polar |
collection |
DIAL@USL-B (Université Saint-Louis, Bruxelles) |
op_collection_id |
ftunistlouisbrus |
language |
English |
topic |
glaciology radar accumulation surface mass balance spatial representativity ice core |
spellingShingle |
glaciology radar accumulation surface mass balance spatial representativity ice core Cavitte, Marie G.P. Goosse, Hugues Wauthy, Sarah Kausch, Thore Tison, Jean-Louis Van Liefferinge, Brice Pattyn, Frank Lenaerts, Jan T.M. Claeys, Philippe From ice core to ground-penetrating radar: representativeness of SMB at three ice rises along the Princess Ragnhild Coast, East Antarctica |
topic_facet |
glaciology radar accumulation surface mass balance spatial representativity ice core |
description |
The future contributions of the Antarctic Ice Sheet to sea level rise will depend on the evolution of its surface mass balance (SMB), which could amplify/dampen mass losses increasingly observed at the ice sheet's edge. In situ constraints of SMB over annual-to-decadal timescales consist mostly of firn/ice cores that have a surface footprint cm. SMB constraints also come from climate models, which have a higher temporal resolution but a larger surface footprint of several km. We use ice-penetrating radar data to obtain an intermediate spatial and temporal resolution SMB record over three ice rises along the Princess Ragnhild Coast. The co-located ice cores allow us to obtain absolute radar-derived SMB rates at a multi-annual-to-decadal temporal resolution. By comparing the ice core SMB measurements and the radar-derived SMB records, we determine that pointwise measurements of SMB are representative of a small surface area, m radius extending from the ice core drill site for the ice rises studied here, and that the pointwise measurements are systematically 7–15 cm w.e. a lower than the mean SMB value calculated for the whole ice rises. However, ice core records are representative of an entire ice rise's temporal variability at the temporal resolution examined. |
author2 |
UCL - SST/ELI/ELIC - Earth & Climate |
format |
Article in Journal/Newspaper |
author |
Cavitte, Marie G.P. Goosse, Hugues Wauthy, Sarah Kausch, Thore Tison, Jean-Louis Van Liefferinge, Brice Pattyn, Frank Lenaerts, Jan T.M. Claeys, Philippe |
author_facet |
Cavitte, Marie G.P. Goosse, Hugues Wauthy, Sarah Kausch, Thore Tison, Jean-Louis Van Liefferinge, Brice Pattyn, Frank Lenaerts, Jan T.M. Claeys, Philippe |
author_sort |
Cavitte, Marie G.P. |
title |
From ice core to ground-penetrating radar: representativeness of SMB at three ice rises along the Princess Ragnhild Coast, East Antarctica |
title_short |
From ice core to ground-penetrating radar: representativeness of SMB at three ice rises along the Princess Ragnhild Coast, East Antarctica |
title_full |
From ice core to ground-penetrating radar: representativeness of SMB at three ice rises along the Princess Ragnhild Coast, East Antarctica |
title_fullStr |
From ice core to ground-penetrating radar: representativeness of SMB at three ice rises along the Princess Ragnhild Coast, East Antarctica |
title_full_unstemmed |
From ice core to ground-penetrating radar: representativeness of SMB at three ice rises along the Princess Ragnhild Coast, East Antarctica |
title_sort |
from ice core to ground-penetrating radar: representativeness of smb at three ice rises along the princess ragnhild coast, east antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2022 |
url |
http://hdl.handle.net/2078.1/269505 https://doi.org/10.1017/jog.2022.39 |
long_lat |
ENVELOPE(27.000,27.000,-70.500,-70.500) |
geographic |
Antarctic East Antarctica Princess Ragnhild Coast The Antarctic |
geographic_facet |
Antarctic East Antarctica Princess Ragnhild Coast The Antarctic |
genre |
Antarc* Antarctic Antarctica East Antarctica ice core Ice Sheet Journal of Glaciology Princess Ragnhild Coast |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica ice core Ice Sheet Journal of Glaciology Princess Ragnhild Coast |
op_source |
Journal of Glaciology, Vol. 68, no.272, p. 1221-1233 (2022) |
op_relation |
boreal:269505 http://hdl.handle.net/2078.1/269505 doi:10.1017/jog.2022.39 urn:ISSN:0022-1430 urn:EISSN:1727-5652 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1017/jog.2022.39 |
container_title |
Journal of Glaciology |
container_volume |
68 |
container_issue |
272 |
container_start_page |
1221 |
op_container_end_page |
1233 |
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1798843929377898496 |