Mass budget of the grounded ice in Lambert Glacier-Amery Ice Shelf system
We used remote-sensing and in situ measurements of surface accumulation rate, ice surface velocity, thickness and elevation to evaluate the mass budgets of grounded ice-flow regimes that form the Lambert Glacier-Amery Ice Shelf system. Three distinct drainage regimes are considered: the western and...
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ftawi:oai:epic.awi.de:19886 2024-09-15T17:38:41+00:00 Mass budget of the grounded ice in Lambert Glacier-Amery Ice Shelf system Wen, J. Wang, Yongbo Liu, J. Jezek, K. C. Huybrechts, Philippe Csatho, B. M. Farness, P. Sun, B. 2008 application/pdf https://epic.awi.de/id/eprint/19886/ https://epic.awi.de/id/eprint/19886/1/Wen2008b.pdf https://hdl.handle.net/10013/epic.31781 https://hdl.handle.net/10013/epic.31781.d001 unknown https://epic.awi.de/id/eprint/19886/1/Wen2008b.pdf https://hdl.handle.net/10013/epic.31781.d001 Wen, J. , Wang, Y. , Liu, J. , Jezek, K. C. , Huybrechts, P. , Csatho, B. M. , Farness, P. and Sun, B. (2008) Mass budget of the grounded ice in Lambert Glacier-Amery Ice Shelf system , Annals of Glaciology, 48 , pp. 193-197 . hdl:10013/epic.31781 EPIC3Annals of Glaciology, 48, pp. 193-197 Article peerRev 2008 ftawi 2024-06-24T04:01:09Z We used remote-sensing and in situ measurements of surface accumulation rate, ice surface velocity, thickness and elevation to evaluate the mass budgets of grounded ice-flow regimes that form the Lambert Glacier-Amery Ice Shelf system. Three distinct drainage regimes are considered: the western and eastern margins of the ice shelf, and the southern grounding line at the major outlet glacier confluence, which can be identified with drainage zones 9, 11 and 10 respectively of Giovinetto and Zwally (2000). Our findings show the entire grounded portion of the basin is approximately in balance, with a mass budget of -4.2_9.8 Gt a-1. Drainages 9, 10 and 11 are within balance to the level of our measurement uncertainty, with mass budgets of -2.5_2.8 Gt a-1, -2.6_7.8 Gt a-1 and 0.9_2.3 Gt a-1, respectively. The region upstream of the Australian Lambert Glacier basin (LGB) traverse has a net mass budget of 4.4_6.3 Gt a-1, while the downstream region has -8.9_9.9 Gt a-1. These results indicate that glacier drainages 9, 10 and 11, upstream and downstream of the Australian LGB traverse, are in balance to within our measurement error. Article in Journal/Newspaper Amery Ice Shelf Annals of Glaciology Ice Shelf Lambert Glacier Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
We used remote-sensing and in situ measurements of surface accumulation rate, ice surface velocity, thickness and elevation to evaluate the mass budgets of grounded ice-flow regimes that form the Lambert Glacier-Amery Ice Shelf system. Three distinct drainage regimes are considered: the western and eastern margins of the ice shelf, and the southern grounding line at the major outlet glacier confluence, which can be identified with drainage zones 9, 11 and 10 respectively of Giovinetto and Zwally (2000). Our findings show the entire grounded portion of the basin is approximately in balance, with a mass budget of -4.2_9.8 Gt a-1. Drainages 9, 10 and 11 are within balance to the level of our measurement uncertainty, with mass budgets of -2.5_2.8 Gt a-1, -2.6_7.8 Gt a-1 and 0.9_2.3 Gt a-1, respectively. The region upstream of the Australian Lambert Glacier basin (LGB) traverse has a net mass budget of 4.4_6.3 Gt a-1, while the downstream region has -8.9_9.9 Gt a-1. These results indicate that glacier drainages 9, 10 and 11, upstream and downstream of the Australian LGB traverse, are in balance to within our measurement error. |
format |
Article in Journal/Newspaper |
author |
Wen, J. Wang, Yongbo Liu, J. Jezek, K. C. Huybrechts, Philippe Csatho, B. M. Farness, P. Sun, B. |
spellingShingle |
Wen, J. Wang, Yongbo Liu, J. Jezek, K. C. Huybrechts, Philippe Csatho, B. M. Farness, P. Sun, B. Mass budget of the grounded ice in Lambert Glacier-Amery Ice Shelf system |
author_facet |
Wen, J. Wang, Yongbo Liu, J. Jezek, K. C. Huybrechts, Philippe Csatho, B. M. Farness, P. Sun, B. |
author_sort |
Wen, J. |
title |
Mass budget of the grounded ice in Lambert Glacier-Amery Ice Shelf system |
title_short |
Mass budget of the grounded ice in Lambert Glacier-Amery Ice Shelf system |
title_full |
Mass budget of the grounded ice in Lambert Glacier-Amery Ice Shelf system |
title_fullStr |
Mass budget of the grounded ice in Lambert Glacier-Amery Ice Shelf system |
title_full_unstemmed |
Mass budget of the grounded ice in Lambert Glacier-Amery Ice Shelf system |
title_sort |
mass budget of the grounded ice in lambert glacier-amery ice shelf system |
publishDate |
2008 |
url |
https://epic.awi.de/id/eprint/19886/ https://epic.awi.de/id/eprint/19886/1/Wen2008b.pdf https://hdl.handle.net/10013/epic.31781 https://hdl.handle.net/10013/epic.31781.d001 |
genre |
Amery Ice Shelf Annals of Glaciology Ice Shelf Lambert Glacier |
genre_facet |
Amery Ice Shelf Annals of Glaciology Ice Shelf Lambert Glacier |
op_source |
EPIC3Annals of Glaciology, 48, pp. 193-197 |
op_relation |
https://epic.awi.de/id/eprint/19886/1/Wen2008b.pdf https://hdl.handle.net/10013/epic.31781.d001 Wen, J. , Wang, Y. , Liu, J. , Jezek, K. C. , Huybrechts, P. , Csatho, B. M. , Farness, P. and Sun, B. (2008) Mass budget of the grounded ice in Lambert Glacier-Amery Ice Shelf system , Annals of Glaciology, 48 , pp. 193-197 . hdl:10013/epic.31781 |
_version_ |
1810474818593619968 |