The Larsen Ice Shelf System, Antarctica (Larissa)

Polar systems bound together, changing fast

Julia S. Wellner, Ted Scambos, Eugene W. Domack, Maria Vernet, Amy Leventer, Greg Balco, Stefanie Brachfeld, Mattias R. Cape, Bruce Huber, Scott Ishman, Michael L. McCormick, Ellen Mosley-Thompson, Erin C. Pettit, Craig R. Smith, Martin Truffer, Cindy Van Dover, Kyu Cheul Yoo

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Climatic, cryospheric, and biologic changes taking place in the northern Antarctic Peninsula provide examples for how ongoing systemic change may progress through the entire Antarctic system. A large, interdisciplinary research project focused on the Larsen Ice Shelf system, synthesized here, has documented dramatic ice cover, oceanographic, and ecosystem changes in the Antarctic Peninsula during the Holocene and the present period of rapid regional warming. The responsiveness of the region results from its position in the climate and ocean system, in which a narrow continental block extends across zonal atmospheric and ocean flow, creating high snow accumulation, strong gradients and gyres, dynamic oceanography, outlet glaciers feeding into many fjords and bays having steep topography, and a continental shelf that contains many glacially carved troughs separated by areas of glacial sediment accumulation. The microcosm of the northern Antarctic Peninsula has a tendency to change rapidly-rapid relative not just to Antarctica's mainland but compared to the rest of the planet as well-and it is generally warmer than the rest of Antarctica. Both its Holocene and modern glaciological retreats offer a picture of how larger areas of Antarctica farther south might change under future warming.

Original languageEnglish
JournalGSA Today
Volume29
Issue number8
DOIs
StatePublished - 1 Jan 2019

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ice shelf
warming
Holocene
snow accumulation
ocean
glacial deposit
fjord
oceanography
ice cover
microcosm
continental shelf
glacier
trough
planet
topography
ecosystem
climate
Antarctica

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Wellner, J. S., Scambos, T., Domack, E. W., Vernet, M., Leventer, A., Balco, G., ... Yoo, K. C. (2019). The Larsen Ice Shelf System, Antarctica (Larissa): Polar systems bound together, changing fast. GSA Today, 29(8). https://doi.org/10.1130/GSATG382A.1
Wellner, Julia S. ; Scambos, Ted ; Domack, Eugene W. ; Vernet, Maria ; Leventer, Amy ; Balco, Greg ; Brachfeld, Stefanie ; Cape, Mattias R. ; Huber, Bruce ; Ishman, Scott ; McCormick, Michael L. ; Mosley-Thompson, Ellen ; Pettit, Erin C. ; Smith, Craig R. ; Truffer, Martin ; Van Dover, Cindy ; Yoo, Kyu Cheul. / The Larsen Ice Shelf System, Antarctica (Larissa) : Polar systems bound together, changing fast. In: GSA Today. 2019 ; Vol. 29, No. 8.
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abstract = "Climatic, cryospheric, and biologic changes taking place in the northern Antarctic Peninsula provide examples for how ongoing systemic change may progress through the entire Antarctic system. A large, interdisciplinary research project focused on the Larsen Ice Shelf system, synthesized here, has documented dramatic ice cover, oceanographic, and ecosystem changes in the Antarctic Peninsula during the Holocene and the present period of rapid regional warming. The responsiveness of the region results from its position in the climate and ocean system, in which a narrow continental block extends across zonal atmospheric and ocean flow, creating high snow accumulation, strong gradients and gyres, dynamic oceanography, outlet glaciers feeding into many fjords and bays having steep topography, and a continental shelf that contains many glacially carved troughs separated by areas of glacial sediment accumulation. The microcosm of the northern Antarctic Peninsula has a tendency to change rapidly-rapid relative not just to Antarctica's mainland but compared to the rest of the planet as well-and it is generally warmer than the rest of Antarctica. Both its Holocene and modern glaciological retreats offer a picture of how larger areas of Antarctica farther south might change under future warming.",
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Wellner, JS, Scambos, T, Domack, EW, Vernet, M, Leventer, A, Balco, G, Brachfeld, S, Cape, MR, Huber, B, Ishman, S, McCormick, ML, Mosley-Thompson, E, Pettit, EC, Smith, CR, Truffer, M, Van Dover, C & Yoo, KC 2019, 'The Larsen Ice Shelf System, Antarctica (Larissa): Polar systems bound together, changing fast', GSA Today, vol. 29, no. 8. https://doi.org/10.1130/GSATG382A.1

The Larsen Ice Shelf System, Antarctica (Larissa) : Polar systems bound together, changing fast. / Wellner, Julia S.; Scambos, Ted; Domack, Eugene W.; Vernet, Maria; Leventer, Amy; Balco, Greg; Brachfeld, Stefanie; Cape, Mattias R.; Huber, Bruce; Ishman, Scott; McCormick, Michael L.; Mosley-Thompson, Ellen; Pettit, Erin C.; Smith, Craig R.; Truffer, Martin; Van Dover, Cindy; Yoo, Kyu Cheul.

In: GSA Today, Vol. 29, No. 8, 01.01.2019.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - The Larsen Ice Shelf System, Antarctica (Larissa)

T2 - Polar systems bound together, changing fast

AU - Wellner, Julia S.

AU - Scambos, Ted

AU - Domack, Eugene W.

AU - Vernet, Maria

AU - Leventer, Amy

AU - Balco, Greg

AU - Brachfeld, Stefanie

AU - Cape, Mattias R.

AU - Huber, Bruce

AU - Ishman, Scott

AU - McCormick, Michael L.

AU - Mosley-Thompson, Ellen

AU - Pettit, Erin C.

AU - Smith, Craig R.

AU - Truffer, Martin

AU - Van Dover, Cindy

AU - Yoo, Kyu Cheul

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Climatic, cryospheric, and biologic changes taking place in the northern Antarctic Peninsula provide examples for how ongoing systemic change may progress through the entire Antarctic system. A large, interdisciplinary research project focused on the Larsen Ice Shelf system, synthesized here, has documented dramatic ice cover, oceanographic, and ecosystem changes in the Antarctic Peninsula during the Holocene and the present period of rapid regional warming. The responsiveness of the region results from its position in the climate and ocean system, in which a narrow continental block extends across zonal atmospheric and ocean flow, creating high snow accumulation, strong gradients and gyres, dynamic oceanography, outlet glaciers feeding into many fjords and bays having steep topography, and a continental shelf that contains many glacially carved troughs separated by areas of glacial sediment accumulation. The microcosm of the northern Antarctic Peninsula has a tendency to change rapidly-rapid relative not just to Antarctica's mainland but compared to the rest of the planet as well-and it is generally warmer than the rest of Antarctica. Both its Holocene and modern glaciological retreats offer a picture of how larger areas of Antarctica farther south might change under future warming.

AB - Climatic, cryospheric, and biologic changes taking place in the northern Antarctic Peninsula provide examples for how ongoing systemic change may progress through the entire Antarctic system. A large, interdisciplinary research project focused on the Larsen Ice Shelf system, synthesized here, has documented dramatic ice cover, oceanographic, and ecosystem changes in the Antarctic Peninsula during the Holocene and the present period of rapid regional warming. The responsiveness of the region results from its position in the climate and ocean system, in which a narrow continental block extends across zonal atmospheric and ocean flow, creating high snow accumulation, strong gradients and gyres, dynamic oceanography, outlet glaciers feeding into many fjords and bays having steep topography, and a continental shelf that contains many glacially carved troughs separated by areas of glacial sediment accumulation. The microcosm of the northern Antarctic Peninsula has a tendency to change rapidly-rapid relative not just to Antarctica's mainland but compared to the rest of the planet as well-and it is generally warmer than the rest of Antarctica. Both its Holocene and modern glaciological retreats offer a picture of how larger areas of Antarctica farther south might change under future warming.

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U2 - 10.1130/GSATG382A.1

DO - 10.1130/GSATG382A.1

M3 - Article

VL - 29

JO - GSA Today

JF - GSA Today

SN - 1052-5173

IS - 8

ER -

Wellner JS, Scambos T, Domack EW, Vernet M, Leventer A, Balco G et al. The Larsen Ice Shelf System, Antarctica (Larissa): Polar systems bound together, changing fast. GSA Today. 2019 Jan 1;29(8). https://doi.org/10.1130/GSATG382A.1