Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project I: Antarctica
Atmospheric, oceanic, and subglacial forcing scenarios from the Sea-level Response to Ice Sheet Evolution (SeaRISE) project are applied to six three-dimensional thermomechanical ice-sheet models to assess Antarctic ice sheet sensitivity over a 500 year timescale and to inform future modeling and fie...
Published in: | Journal of Geophysical Research: Earth Surface |
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eScholarship, University of California
2013
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Online Access: | https://escholarship.org/uc/item/7kf2t295 https://escholarship.org/content/qt7kf2t295/qt7kf2t295.pdf https://doi.org/10.1002/jgrf.20081 |
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ftcdlib:oai:escholarship.org:ark:/13030/qt7kf2t295 2024-09-15T17:45:28+00:00 Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project I: Antarctica Nowicki, Sophie Bindschadler, Robert A Abe‐Ouchi, Ayako Aschwanden, Andy Bueler, Ed Choi, Hyeungu Fastook, Jim Granzow, Glen Greve, Ralf Gutowski, Gail Herzfeld, Ute Jackson, Charles Johnson, Jesse Khroulev, Constantine Larour, Eric Levermann, Anders Lipscomb, William H Martin, Maria A Morlighem, Mathieu Parizek, Byron R Pollard, David Price, Stephen F Ren, Diandong Rignot, Eric Saito, Fuyuki Sato, Tatsuru Seddik, Hakime Seroussi, Helene Takahashi, Kunio Walker, Ryan Wang, Wei Li 1002 - 1024 2013-06-01 application/pdf https://escholarship.org/uc/item/7kf2t295 https://escholarship.org/content/qt7kf2t295/qt7kf2t295.pdf https://doi.org/10.1002/jgrf.20081 unknown eScholarship, University of California qt7kf2t295 https://escholarship.org/uc/item/7kf2t295 https://escholarship.org/content/qt7kf2t295/qt7kf2t295.pdf doi:10.1002/jgrf.20081 CC-BY Journal of Geophysical Research Earth Surface, vol 118, iss 2 Climate Action Antarctica ice-sheet sea-level model ensemble Earth Sciences article 2013 ftcdlib https://doi.org/10.1002/jgrf.20081 2024-06-28T06:28:20Z Atmospheric, oceanic, and subglacial forcing scenarios from the Sea-level Response to Ice Sheet Evolution (SeaRISE) project are applied to six three-dimensional thermomechanical ice-sheet models to assess Antarctic ice sheet sensitivity over a 500 year timescale and to inform future modeling and field studies. Results indicate (i) growth with warming, except within low-latitude basins (where inland thickening is outpaced by marginal thinning); (ii) mass loss with enhanced sliding (with basins dominated by high driving stresses affected more than basins with low-surface-slope streaming ice); and (iii) mass loss with enhanced ice shelf melting (with changes in West Antarctica dominating the signal due to its marine setting and extensive ice shelves; cf. minimal impact in the Terre Adelie, George V, Oates, and Victoria Land region of East Antarctica). Ice loss due to dynamic changes associated with enhanced sliding and/or sub-shelf melting exceeds the gain due to increased precipitation. Furthermore, differences in results between and within basins as well as the controlling impact of sub-shelf melting on ice dynamics highlight the need for improved understanding of basal conditions, grounding-zone processes, ocean-ice interactions, and the numerical representation of all three. Key Points Sensitivity study of Antarctica to atmospheric, oceanic and subglacial forcings Different sectors of Antarctica are vulnerable to the forcings Atmospheric forcing lead to a growth, but dynamic forcing lead to a mass loss ©2013. American Geophysical Union. All Rights Reserved. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves Victoria Land West Antarctica University of California: eScholarship Journal of Geophysical Research: Earth Surface 118 2 1002 1024 |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Climate Action Antarctica ice-sheet sea-level model ensemble Earth Sciences |
spellingShingle |
Climate Action Antarctica ice-sheet sea-level model ensemble Earth Sciences Nowicki, Sophie Bindschadler, Robert A Abe‐Ouchi, Ayako Aschwanden, Andy Bueler, Ed Choi, Hyeungu Fastook, Jim Granzow, Glen Greve, Ralf Gutowski, Gail Herzfeld, Ute Jackson, Charles Johnson, Jesse Khroulev, Constantine Larour, Eric Levermann, Anders Lipscomb, William H Martin, Maria A Morlighem, Mathieu Parizek, Byron R Pollard, David Price, Stephen F Ren, Diandong Rignot, Eric Saito, Fuyuki Sato, Tatsuru Seddik, Hakime Seroussi, Helene Takahashi, Kunio Walker, Ryan Wang, Wei Li Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project I: Antarctica |
topic_facet |
Climate Action Antarctica ice-sheet sea-level model ensemble Earth Sciences |
description |
Atmospheric, oceanic, and subglacial forcing scenarios from the Sea-level Response to Ice Sheet Evolution (SeaRISE) project are applied to six three-dimensional thermomechanical ice-sheet models to assess Antarctic ice sheet sensitivity over a 500 year timescale and to inform future modeling and field studies. Results indicate (i) growth with warming, except within low-latitude basins (where inland thickening is outpaced by marginal thinning); (ii) mass loss with enhanced sliding (with basins dominated by high driving stresses affected more than basins with low-surface-slope streaming ice); and (iii) mass loss with enhanced ice shelf melting (with changes in West Antarctica dominating the signal due to its marine setting and extensive ice shelves; cf. minimal impact in the Terre Adelie, George V, Oates, and Victoria Land region of East Antarctica). Ice loss due to dynamic changes associated with enhanced sliding and/or sub-shelf melting exceeds the gain due to increased precipitation. Furthermore, differences in results between and within basins as well as the controlling impact of sub-shelf melting on ice dynamics highlight the need for improved understanding of basal conditions, grounding-zone processes, ocean-ice interactions, and the numerical representation of all three. Key Points Sensitivity study of Antarctica to atmospheric, oceanic and subglacial forcings Different sectors of Antarctica are vulnerable to the forcings Atmospheric forcing lead to a growth, but dynamic forcing lead to a mass loss ©2013. American Geophysical Union. All Rights Reserved. |
format |
Article in Journal/Newspaper |
author |
Nowicki, Sophie Bindschadler, Robert A Abe‐Ouchi, Ayako Aschwanden, Andy Bueler, Ed Choi, Hyeungu Fastook, Jim Granzow, Glen Greve, Ralf Gutowski, Gail Herzfeld, Ute Jackson, Charles Johnson, Jesse Khroulev, Constantine Larour, Eric Levermann, Anders Lipscomb, William H Martin, Maria A Morlighem, Mathieu Parizek, Byron R Pollard, David Price, Stephen F Ren, Diandong Rignot, Eric Saito, Fuyuki Sato, Tatsuru Seddik, Hakime Seroussi, Helene Takahashi, Kunio Walker, Ryan Wang, Wei Li |
author_facet |
Nowicki, Sophie Bindschadler, Robert A Abe‐Ouchi, Ayako Aschwanden, Andy Bueler, Ed Choi, Hyeungu Fastook, Jim Granzow, Glen Greve, Ralf Gutowski, Gail Herzfeld, Ute Jackson, Charles Johnson, Jesse Khroulev, Constantine Larour, Eric Levermann, Anders Lipscomb, William H Martin, Maria A Morlighem, Mathieu Parizek, Byron R Pollard, David Price, Stephen F Ren, Diandong Rignot, Eric Saito, Fuyuki Sato, Tatsuru Seddik, Hakime Seroussi, Helene Takahashi, Kunio Walker, Ryan Wang, Wei Li |
author_sort |
Nowicki, Sophie |
title |
Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project I: Antarctica |
title_short |
Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project I: Antarctica |
title_full |
Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project I: Antarctica |
title_fullStr |
Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project I: Antarctica |
title_full_unstemmed |
Insights into spatial sensitivities of ice mass response to environmental change from the SeaRISE ice sheet modeling project I: Antarctica |
title_sort |
insights into spatial sensitivities of ice mass response to environmental change from the searise ice sheet modeling project i: antarctica |
publisher |
eScholarship, University of California |
publishDate |
2013 |
url |
https://escholarship.org/uc/item/7kf2t295 https://escholarship.org/content/qt7kf2t295/qt7kf2t295.pdf https://doi.org/10.1002/jgrf.20081 |
op_coverage |
1002 - 1024 |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves Victoria Land West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelf Ice Shelves Victoria Land West Antarctica |
op_source |
Journal of Geophysical Research Earth Surface, vol 118, iss 2 |
op_relation |
qt7kf2t295 https://escholarship.org/uc/item/7kf2t295 https://escholarship.org/content/qt7kf2t295/qt7kf2t295.pdf doi:10.1002/jgrf.20081 |
op_rights |
CC-BY |
op_doi |
https://doi.org/10.1002/jgrf.20081 |
container_title |
Journal of Geophysical Research: Earth Surface |
container_volume |
118 |
container_issue |
2 |
container_start_page |
1002 |
op_container_end_page |
1024 |
_version_ |
1810493299425804288 |