Ice flux evolution in fast flowing areas of the Greenland ice sheet over the 20th and 21st centuries
International audience This study investigates the evolution of Greenland ice sheet flux focusing on five of the main fast flowing regions (Petermann glacier, North East Greenland Ice Stream, Kangerdlugssuaq glacier, Helheim glacier and Jakobshavn glacier) in response to 20th and 21st century climat...
Published in: | Journal of Glaciology |
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Main Authors: | , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2017
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Online Access: | https://hal.archives-ouvertes.fr/hal-03226809 https://hal.archives-ouvertes.fr/hal-03226809/document https://hal.archives-ouvertes.fr/hal-03226809/file/div-class-title-ice-flux-evolution-in-fast-flowing-areas-of-the-greenland-ice-sheet-over-the-20th-and-21st-centuries-div.pdf https://doi.org/10.1017/jog.2017.12 |
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ftunivnantes:oai:HAL:hal-03226809v1 2023-05-15T16:03:47+02:00 Ice flux evolution in fast flowing areas of the Greenland ice sheet over the 20th and 21st centuries Peano, Daniele Colleoni, Florence Quiquet, Aurélien Masina, Simona Università Ca’ Foscari Centro Euro-Mediterraneo sui Cambiamenti Climatici (CMCC) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Istituto Nazionale di Geofisica e Vulcanologia - Sezione di Bologna (INGV) Istituto Nazionale di Geofisica e Vulcanologia 2017 https://hal.archives-ouvertes.fr/hal-03226809 https://hal.archives-ouvertes.fr/hal-03226809/document https://hal.archives-ouvertes.fr/hal-03226809/file/div-class-title-ice-flux-evolution-in-fast-flowing-areas-of-the-greenland-ice-sheet-over-the-20th-and-21st-centuries-div.pdf https://doi.org/10.1017/jog.2017.12 en eng HAL CCSD International Glaciological Society info:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2017.12 hal-03226809 https://hal.archives-ouvertes.fr/hal-03226809 https://hal.archives-ouvertes.fr/hal-03226809/document https://hal.archives-ouvertes.fr/hal-03226809/file/div-class-title-ice-flux-evolution-in-fast-flowing-areas-of-the-greenland-ice-sheet-over-the-20th-and-21st-centuries-div.pdf doi:10.1017/jog.2017.12 info:eu-repo/semantics/OpenAccess ISSN: 0022-1430 EISSN: 1727-5652 Journal of Glaciology https://hal.archives-ouvertes.fr/hal-03226809 Journal of Glaciology, International Glaciological Society, 2017, 63 (239), pp.499-513. ⟨10.1017/jog.2017.12⟩ climate change ice-sheet mass balance ice-sheet modelling ice streams [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/article Journal articles 2017 ftunivnantes https://doi.org/10.1017/jog.2017.12 2022-11-02T00:36:01Z International audience This study investigates the evolution of Greenland ice sheet flux focusing on five of the main fast flowing regions (Petermann glacier, North East Greenland Ice Stream, Kangerdlugssuaq glacier, Helheim glacier and Jakobshavn glacier) in response to 20th and 21st century climate change. A hybrid (shallow ice and shallow shelf) ice-sheet model (ISM) is forced with the combined outputs of a set of seven CMIP5 models and the regional climate model MAR. The ISM simulates the present-day ice velocity pattern, topography and surface mass balance (SMB) in good agreement with observations. Except for the Kangerdlugssuaq glacier, over the 21st century all the fast-flowing areas have exhibited a decrease in ice flux as a result of a negative SMB rather than dynamical changes. Only the fronts of Kangerdlugssuaq and Helheim glaciers have shown an interannual variability driven by dynamical rather than climate changes. Finally, the results predict a substantial inland ice margin retreat by the end of the 21st century, especially along the northern coasts. Article in Journal/Newspaper East Greenland glacier Greenland Ice Sheet Jakobshavn Journal of Glaciology Petermann glacier Université de Nantes: HAL-UNIV-NANTES Greenland Journal of Glaciology 63 239 499 513 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
climate change ice-sheet mass balance ice-sheet modelling ice streams [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
spellingShingle |
climate change ice-sheet mass balance ice-sheet modelling ice streams [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology Peano, Daniele Colleoni, Florence Quiquet, Aurélien Masina, Simona Ice flux evolution in fast flowing areas of the Greenland ice sheet over the 20th and 21st centuries |
topic_facet |
climate change ice-sheet mass balance ice-sheet modelling ice streams [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
International audience This study investigates the evolution of Greenland ice sheet flux focusing on five of the main fast flowing regions (Petermann glacier, North East Greenland Ice Stream, Kangerdlugssuaq glacier, Helheim glacier and Jakobshavn glacier) in response to 20th and 21st century climate change. A hybrid (shallow ice and shallow shelf) ice-sheet model (ISM) is forced with the combined outputs of a set of seven CMIP5 models and the regional climate model MAR. The ISM simulates the present-day ice velocity pattern, topography and surface mass balance (SMB) in good agreement with observations. Except for the Kangerdlugssuaq glacier, over the 21st century all the fast-flowing areas have exhibited a decrease in ice flux as a result of a negative SMB rather than dynamical changes. Only the fronts of Kangerdlugssuaq and Helheim glaciers have shown an interannual variability driven by dynamical rather than climate changes. Finally, the results predict a substantial inland ice margin retreat by the end of the 21st century, especially along the northern coasts. |
author2 |
Università Ca’ Foscari Centro Euro-Mediterraneo sui Cambiamenti Climatici (CMCC) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Istituto Nazionale di Geofisica e Vulcanologia - Sezione di Bologna (INGV) Istituto Nazionale di Geofisica e Vulcanologia |
format |
Article in Journal/Newspaper |
author |
Peano, Daniele Colleoni, Florence Quiquet, Aurélien Masina, Simona |
author_facet |
Peano, Daniele Colleoni, Florence Quiquet, Aurélien Masina, Simona |
author_sort |
Peano, Daniele |
title |
Ice flux evolution in fast flowing areas of the Greenland ice sheet over the 20th and 21st centuries |
title_short |
Ice flux evolution in fast flowing areas of the Greenland ice sheet over the 20th and 21st centuries |
title_full |
Ice flux evolution in fast flowing areas of the Greenland ice sheet over the 20th and 21st centuries |
title_fullStr |
Ice flux evolution in fast flowing areas of the Greenland ice sheet over the 20th and 21st centuries |
title_full_unstemmed |
Ice flux evolution in fast flowing areas of the Greenland ice sheet over the 20th and 21st centuries |
title_sort |
ice flux evolution in fast flowing areas of the greenland ice sheet over the 20th and 21st centuries |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.archives-ouvertes.fr/hal-03226809 https://hal.archives-ouvertes.fr/hal-03226809/document https://hal.archives-ouvertes.fr/hal-03226809/file/div-class-title-ice-flux-evolution-in-fast-flowing-areas-of-the-greenland-ice-sheet-over-the-20th-and-21st-centuries-div.pdf https://doi.org/10.1017/jog.2017.12 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
East Greenland glacier Greenland Ice Sheet Jakobshavn Journal of Glaciology Petermann glacier |
genre_facet |
East Greenland glacier Greenland Ice Sheet Jakobshavn Journal of Glaciology Petermann glacier |
op_source |
ISSN: 0022-1430 EISSN: 1727-5652 Journal of Glaciology https://hal.archives-ouvertes.fr/hal-03226809 Journal of Glaciology, International Glaciological Society, 2017, 63 (239), pp.499-513. ⟨10.1017/jog.2017.12⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2017.12 hal-03226809 https://hal.archives-ouvertes.fr/hal-03226809 https://hal.archives-ouvertes.fr/hal-03226809/document https://hal.archives-ouvertes.fr/hal-03226809/file/div-class-title-ice-flux-evolution-in-fast-flowing-areas-of-the-greenland-ice-sheet-over-the-20th-and-21st-centuries-div.pdf doi:10.1017/jog.2017.12 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1017/jog.2017.12 |
container_title |
Journal of Glaciology |
container_volume |
63 |
container_issue |
239 |
container_start_page |
499 |
op_container_end_page |
513 |
_version_ |
1766399480144330752 |