Ice thickness over the southern limit of the Amery Ice Shelf, East Antarctica, and reassessment of the mass balance of the central portion of the Lambert Glacier-Amery Ice Shelf system
We combine radio-echo sounding ice thickness data from the BEDMAP Project database and the PCMEGA (Prince Charles Mountains Expedition of Germany and Australia) dataset to generate a new ice thickness grid for the southern limit region of the Amery Ice Shelf, East Antarctica. We then reassess the ma...
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ftunivtasecite:oai:ecite.utas.edu.au:94389 2023-05-15T13:21:58+02:00 Ice thickness over the southern limit of the Amery Ice Shelf, East Antarctica, and reassessment of the mass balance of the central portion of the Lambert Glacier-Amery Ice Shelf system Wen, J Huang, L Wang, W Jacka, TH Damm, V Yan, L 2014 application/pdf https://doi.org/10.3189/2014AoG66A154 http://ecite.utas.edu.au/94389 en eng Int Glaciol Soc http://ecite.utas.edu.au/94389/1/Wen_2014_Lambert_Glacier.pdf http://dx.doi.org/10.3189/2014AoG66A154 Wen, J and Huang, L and Wang, W and Jacka, TH and Damm, V and Yan, L, Ice thickness over the southern limit of the Amery Ice Shelf, East Antarctica, and reassessment of the mass balance of the central portion of the Lambert Glacier-Amery Ice Shelf system, Annals of Glaciology, 55, (66) pp. 81-86. ISSN 0260-3055 (2014) [Refereed Article] http://ecite.utas.edu.au/94389 Earth Sciences Physical Geography and Environmental Geoscience Glaciology Refereed Article PeerReviewed 2014 ftunivtasecite https://doi.org/10.3189/2014AoG66A154 2019-12-13T21:57:00Z We combine radio-echo sounding ice thickness data from the BEDMAP Project database and the PCMEGA (Prince Charles Mountains Expedition of Germany and Australia) dataset to generate a new ice thickness grid for the southern limit region of the Amery Ice Shelf, East Antarctica. We then reassess the mass balance of the central portion of the LambertAmery system, incorporating flow information derived from synthetic aperture radar interferometry (InSAR) and a modeled surface mass-balance dataset based on regional atmospheric modeling. Our analysis reveals that Mellor and Fisher Glaciers are approximately in balance to the level of our measurement uncertainty, while Lambert Glacier has a positive imbalance of 4.22.3 Gt a 1 . The mass budget for the whole Lambert Glacier basin is approximately in balance, and the average basal melt rate in the downstream section of the ice shelf is 5.13.0 m a 1 . Our results differ substantially from other recent estimates using hydrostatically derived ice thickness data. Article in Journal/Newspaper Amery Ice Shelf Annals of Glaciology Antarc* Antarctica East Antarctica Ice Shelf Lambert Glacier Prince Charles Mountains eCite UTAS (University of Tasmania) Amery ENVELOPE(-94.063,-94.063,56.565,56.565) Amery Ice Shelf ENVELOPE(71.000,71.000,-69.750,-69.750) East Antarctica Lambert Glacier ENVELOPE(67.490,67.490,-73.065,-73.065) Mellor ENVELOPE(-114.944,-114.944,60.714,60.714) Prince Charles Mountains ENVELOPE(67.246,67.246,-71.427,-71.427) Annals of Glaciology 55 66 81 86 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology |
spellingShingle |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology Wen, J Huang, L Wang, W Jacka, TH Damm, V Yan, L Ice thickness over the southern limit of the Amery Ice Shelf, East Antarctica, and reassessment of the mass balance of the central portion of the Lambert Glacier-Amery Ice Shelf system |
topic_facet |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology |
description |
We combine radio-echo sounding ice thickness data from the BEDMAP Project database and the PCMEGA (Prince Charles Mountains Expedition of Germany and Australia) dataset to generate a new ice thickness grid for the southern limit region of the Amery Ice Shelf, East Antarctica. We then reassess the mass balance of the central portion of the LambertAmery system, incorporating flow information derived from synthetic aperture radar interferometry (InSAR) and a modeled surface mass-balance dataset based on regional atmospheric modeling. Our analysis reveals that Mellor and Fisher Glaciers are approximately in balance to the level of our measurement uncertainty, while Lambert Glacier has a positive imbalance of 4.22.3 Gt a 1 . The mass budget for the whole Lambert Glacier basin is approximately in balance, and the average basal melt rate in the downstream section of the ice shelf is 5.13.0 m a 1 . Our results differ substantially from other recent estimates using hydrostatically derived ice thickness data. |
format |
Article in Journal/Newspaper |
author |
Wen, J Huang, L Wang, W Jacka, TH Damm, V Yan, L |
author_facet |
Wen, J Huang, L Wang, W Jacka, TH Damm, V Yan, L |
author_sort |
Wen, J |
title |
Ice thickness over the southern limit of the Amery Ice Shelf, East Antarctica, and reassessment of the mass balance of the central portion of the Lambert Glacier-Amery Ice Shelf system |
title_short |
Ice thickness over the southern limit of the Amery Ice Shelf, East Antarctica, and reassessment of the mass balance of the central portion of the Lambert Glacier-Amery Ice Shelf system |
title_full |
Ice thickness over the southern limit of the Amery Ice Shelf, East Antarctica, and reassessment of the mass balance of the central portion of the Lambert Glacier-Amery Ice Shelf system |
title_fullStr |
Ice thickness over the southern limit of the Amery Ice Shelf, East Antarctica, and reassessment of the mass balance of the central portion of the Lambert Glacier-Amery Ice Shelf system |
title_full_unstemmed |
Ice thickness over the southern limit of the Amery Ice Shelf, East Antarctica, and reassessment of the mass balance of the central portion of the Lambert Glacier-Amery Ice Shelf system |
title_sort |
ice thickness over the southern limit of the amery ice shelf, east antarctica, and reassessment of the mass balance of the central portion of the lambert glacier-amery ice shelf system |
publisher |
Int Glaciol Soc |
publishDate |
2014 |
url |
https://doi.org/10.3189/2014AoG66A154 http://ecite.utas.edu.au/94389 |
long_lat |
ENVELOPE(-94.063,-94.063,56.565,56.565) ENVELOPE(71.000,71.000,-69.750,-69.750) ENVELOPE(67.490,67.490,-73.065,-73.065) ENVELOPE(-114.944,-114.944,60.714,60.714) ENVELOPE(67.246,67.246,-71.427,-71.427) |
geographic |
Amery Amery Ice Shelf East Antarctica Lambert Glacier Mellor Prince Charles Mountains |
geographic_facet |
Amery Amery Ice Shelf East Antarctica Lambert Glacier Mellor Prince Charles Mountains |
genre |
Amery Ice Shelf Annals of Glaciology Antarc* Antarctica East Antarctica Ice Shelf Lambert Glacier Prince Charles Mountains |
genre_facet |
Amery Ice Shelf Annals of Glaciology Antarc* Antarctica East Antarctica Ice Shelf Lambert Glacier Prince Charles Mountains |
op_relation |
http://ecite.utas.edu.au/94389/1/Wen_2014_Lambert_Glacier.pdf http://dx.doi.org/10.3189/2014AoG66A154 Wen, J and Huang, L and Wang, W and Jacka, TH and Damm, V and Yan, L, Ice thickness over the southern limit of the Amery Ice Shelf, East Antarctica, and reassessment of the mass balance of the central portion of the Lambert Glacier-Amery Ice Shelf system, Annals of Glaciology, 55, (66) pp. 81-86. ISSN 0260-3055 (2014) [Refereed Article] http://ecite.utas.edu.au/94389 |
op_doi |
https://doi.org/10.3189/2014AoG66A154 |
container_title |
Annals of Glaciology |
container_volume |
55 |
container_issue |
66 |
container_start_page |
81 |
op_container_end_page |
86 |
_version_ |
1766362542978891776 |