Arndt, Jan Erik and Larter, Robert D. and Friedl, Peter and Gohl, Karsten and Höppner, Kathrin and Science Team, of Expedition PS104 (2018) Bathymetric controls on calving processes at Pine Island Glacier. The Cryosphere, 12, pp. 2039-2050. Copernicus Publications. doi: 10.5194/tc-12-2039-2018. ISSN 1994-0416.
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Official URL: http://www.the-cryosphere.net/12/2039/2018/
Abstract
Pine Island Glacier is the largest current Antarctic contributor to sea-level rise. Its ice loss has substantially increased over the last 25 years through thinning, acceleration and grounding line retreat. However, the calving line positions of the stabilising ice shelf did not show any trend within the observational record (last 70 years) until calving in 2015 led to unprecedented retreat and changed the alignment of the calving front. Bathymetric surveying revealed a ridge below the former ice shelf and two shallower highs to the north. Satellite imagery shows that ice contact on the ridge was likely lost in 2006 but was followed by intermittent contact resulting in back stress fluctuations on the ice shelf. Continuing ice-shelf flow also led to occasional ice-shelf contact with the northern bathymetric highs, which initiated rift formation that led to calving. The observations show that bathymetry is an important factor in initiating calving events.
Item URL in elib: | https://elib.dlr.de/120589/ | |||||||||||||||||||||
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Document Type: | Article | |||||||||||||||||||||
Title: | Bathymetric controls on calving processes at Pine Island Glacier | |||||||||||||||||||||
Authors: |
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Date: | 15 June 2018 | |||||||||||||||||||||
Journal or Publication Title: | The Cryosphere | |||||||||||||||||||||
Refereed publication: | Yes | |||||||||||||||||||||
Open Access: | Yes | |||||||||||||||||||||
Gold Open Access: | Yes | |||||||||||||||||||||
In SCOPUS: | Yes | |||||||||||||||||||||
In ISI Web of Science: | Yes | |||||||||||||||||||||
Volume: | 12 | |||||||||||||||||||||
DOI: | 10.5194/tc-12-2039-2018 | |||||||||||||||||||||
Page Range: | pp. 2039-2050 | |||||||||||||||||||||
Publisher: | Copernicus Publications | |||||||||||||||||||||
ISSN: | 1994-0416 | |||||||||||||||||||||
Status: | Published | |||||||||||||||||||||
Keywords: | Antarctica, Pine Island Glacier, Bathymetry, Satellite SAR data | |||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||||||||
HGF - Program: | Space | |||||||||||||||||||||
HGF - Program Themes: | Earth Observation | |||||||||||||||||||||
DLR - Research area: | Raumfahrt | |||||||||||||||||||||
DLR - Program: | R EO - Earth Observation | |||||||||||||||||||||
DLR - Research theme (Project): | R - Remote Sensing and Geo Research | |||||||||||||||||||||
Location: | Oberpfaffenhofen | |||||||||||||||||||||
Institutes and Institutions: | German Remote Sensing Data Center > Land Surface | |||||||||||||||||||||
Deposited By: | Höppner, Dr. Kathrin | |||||||||||||||||||||
Deposited On: | 11 Jul 2018 09:34 | |||||||||||||||||||||
Last Modified: | 09 Jan 2019 12:23 |
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