Mass loss of Larsen B tributary glaciers (Antarctic Peninsula) unabated since 2002
International audience Ice mass loss continues at a high rate among the large glacier tributaries of the Larsen B Ice Shelf following its disintegration in 2002. We evaluate recent mass loss by mapping elevation changes between 2006 and 2010/11 using differencing of digital elevation models (DEMs)....
Published in: | Geophysical Research Letters |
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ftutoulouse3hal:oai:HAL:hal-00743980v1 2024-09-15T17:44:00+00:00 Mass loss of Larsen B tributary glaciers (Antarctic Peninsula) unabated since 2002 Berthier, Etienne Scambos, Ted A. Shuman, Christopher A. GLACIO LEGOS Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) National Snow and Ice Data Center (NSIDC) University of Colorado Boulder NASA Goddard Space Flight Center (GSFC) 2012 https://hal.science/hal-00743980 https://hal.science/hal-00743980/document https://hal.science/hal-00743980/file/Berthier_et_al_GRL_2012_preprint.pdf https://doi.org/10.1029/2012GL051755 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2012GL051755 hal-00743980 https://hal.science/hal-00743980 https://hal.science/hal-00743980/document https://hal.science/hal-00743980/file/Berthier_et_al_GRL_2012_preprint.pdf doi:10.1029/2012GL051755 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-00743980 Geophysical Research Letters, 2012, 39, pp.L13501. ⟨10.1029/2012GL051755⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2012 ftutoulouse3hal https://doi.org/10.1029/2012GL051755 2024-06-24T23:59:17Z International audience Ice mass loss continues at a high rate among the large glacier tributaries of the Larsen B Ice Shelf following its disintegration in 2002. We evaluate recent mass loss by mapping elevation changes between 2006 and 2010/11 using differencing of digital elevation models (DEMs). The measurement accuracy of these elevation changes is confirmed by a 'null test', subtracting DEMs acquired within a few weeks. The overall 2006-2010/11 mass loss rate (9.0±2.1 Gt a-1) is similar to the 2001/02-2006 rate (8.8±1.6 Gt a-1), derived using DEM differencing and laser altimetry. This unchanged overall loss masks a varying pattern of thinning and ice loss for individual glacier basins. On Crane Glacier, the thinning pulse, initially greatest near the calving front, is now broadening and migrating upstream. The largest losses are now observed for the Hektoria/Green glacier basin, having increased by 33% since 2006. Our method has enabled us to resolve large residual uncertainties in the Larsen B sector and confirm its state of ongoing rapid mass loss. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Crane Glacier Ice Shelf Université Toulouse III - Paul Sabatier: HAL-UPS Geophysical Research Letters 39 13 n/a n/a |
institution |
Open Polar |
collection |
Université Toulouse III - Paul Sabatier: HAL-UPS |
op_collection_id |
ftutoulouse3hal |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Berthier, Etienne Scambos, Ted A. Shuman, Christopher A. Mass loss of Larsen B tributary glaciers (Antarctic Peninsula) unabated since 2002 |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience Ice mass loss continues at a high rate among the large glacier tributaries of the Larsen B Ice Shelf following its disintegration in 2002. We evaluate recent mass loss by mapping elevation changes between 2006 and 2010/11 using differencing of digital elevation models (DEMs). The measurement accuracy of these elevation changes is confirmed by a 'null test', subtracting DEMs acquired within a few weeks. The overall 2006-2010/11 mass loss rate (9.0±2.1 Gt a-1) is similar to the 2001/02-2006 rate (8.8±1.6 Gt a-1), derived using DEM differencing and laser altimetry. This unchanged overall loss masks a varying pattern of thinning and ice loss for individual glacier basins. On Crane Glacier, the thinning pulse, initially greatest near the calving front, is now broadening and migrating upstream. The largest losses are now observed for the Hektoria/Green glacier basin, having increased by 33% since 2006. Our method has enabled us to resolve large residual uncertainties in the Larsen B sector and confirm its state of ongoing rapid mass loss. |
author2 |
GLACIO LEGOS Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) National Snow and Ice Data Center (NSIDC) University of Colorado Boulder NASA Goddard Space Flight Center (GSFC) |
format |
Article in Journal/Newspaper |
author |
Berthier, Etienne Scambos, Ted A. Shuman, Christopher A. |
author_facet |
Berthier, Etienne Scambos, Ted A. Shuman, Christopher A. |
author_sort |
Berthier, Etienne |
title |
Mass loss of Larsen B tributary glaciers (Antarctic Peninsula) unabated since 2002 |
title_short |
Mass loss of Larsen B tributary glaciers (Antarctic Peninsula) unabated since 2002 |
title_full |
Mass loss of Larsen B tributary glaciers (Antarctic Peninsula) unabated since 2002 |
title_fullStr |
Mass loss of Larsen B tributary glaciers (Antarctic Peninsula) unabated since 2002 |
title_full_unstemmed |
Mass loss of Larsen B tributary glaciers (Antarctic Peninsula) unabated since 2002 |
title_sort |
mass loss of larsen b tributary glaciers (antarctic peninsula) unabated since 2002 |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-00743980 https://hal.science/hal-00743980/document https://hal.science/hal-00743980/file/Berthier_et_al_GRL_2012_preprint.pdf https://doi.org/10.1029/2012GL051755 |
genre |
Antarc* Antarctic Antarctic Peninsula Crane Glacier Ice Shelf |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Crane Glacier Ice Shelf |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-00743980 Geophysical Research Letters, 2012, 39, pp.L13501. ⟨10.1029/2012GL051755⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2012GL051755 hal-00743980 https://hal.science/hal-00743980 https://hal.science/hal-00743980/document https://hal.science/hal-00743980/file/Berthier_et_al_GRL_2012_preprint.pdf doi:10.1029/2012GL051755 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2012GL051755 |
container_title |
Geophysical Research Letters |
container_volume |
39 |
container_issue |
13 |
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n/a |
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n/a |
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1810491265946484736 |