Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020
Ice losses from the Greenland and Antarctic ice sheets have accelerated since the 1990s, accounting for a significant increase in the global mean sea level. Here, we present a new 29-year record of ice sheet mass balance from 1992 to 2020 from the Ice Sheet Mass Balance Inter-comparison Exercise (IM...
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2023
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ftdoajarticles:oai:doaj.org/article:57185db32eb74fc094ce8c1178d57166 2023-06-11T04:05:49+02:00 Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020 I. N. Otosaka A. Shepherd E. R. Ivins N.-J. Schlegel C. Amory M. R. van den Broeke M. Horwath I. Joughin M. D. King G. Krinner S. Nowicki A. J. Payne E. Rignot T. Scambos K. M. Simon B. E. Smith L. S. Sørensen I. Velicogna P. L. Whitehouse G. A C. Agosta A. P. Ahlstrøm A. Blazquez W. Colgan M. E. Engdahl X. Fettweis R. Forsberg H. Gallée A. Gardner L. Gilbert N. Gourmelen A. Groh B. C. Gunter C. Harig V. Helm S. A. Khan C. Kittel H. Konrad P. L. Langen B. S. Lecavalier C.-C. Liang B. D. Loomis M. McMillan D. Melini S. H. Mernild R. Mottram J. Mouginot J. Nilsson B. Noël M. E. Pattle W. R. Peltier N. Pie M. Roca I. Sasgen H. V. Save K.-W. Seo B. Scheuchl E. J. O. Schrama L. Schröder S. B. Simonsen T. Slater G. Spada T. C. Sutterley B. D. Vishwakarma J. M. van Wessem D. Wiese W. van der Wal B. Wouters 2023-04-01T00:00:00Z https://doi.org/10.5194/essd-15-1597-2023 https://doaj.org/article/57185db32eb74fc094ce8c1178d57166 EN eng Copernicus Publications https://essd.copernicus.org/articles/15/1597/2023/essd-15-1597-2023.pdf https://doaj.org/toc/1866-3508 https://doaj.org/toc/1866-3516 doi:10.5194/essd-15-1597-2023 1866-3508 1866-3516 https://doaj.org/article/57185db32eb74fc094ce8c1178d57166 Earth System Science Data, Vol 15, Pp 1597-1616 (2023) Environmental sciences GE1-350 Geology QE1-996.5 article 2023 ftdoajarticles https://doi.org/10.5194/essd-15-1597-2023 2023-04-23T00:32:53Z Ice losses from the Greenland and Antarctic ice sheets have accelerated since the 1990s, accounting for a significant increase in the global mean sea level. Here, we present a new 29-year record of ice sheet mass balance from 1992 to 2020 from the Ice Sheet Mass Balance Inter-comparison Exercise (IMBIE). We compare and combine 50 independent estimates of ice sheet mass balance derived from satellite observations of temporal changes in ice sheet flow, in ice sheet volume, and in Earth's gravity field. Between 1992 and 2020, the ice sheets contributed 21.0±1.9 mm to global mean sea level, with the rate of mass loss rising from 105 Gt yr −1 between 1992 and 1996 to 372 Gt yr −1 between 2016 and 2020. In Greenland, the rate of mass loss is 169±9 Gt yr −1 between 1992 and 2020, but there are large inter-annual variations in mass balance, with mass loss ranging from 86 Gt yr −1 in 2017 to 444 Gt yr −1 in 2019 due to large variability in surface mass balance. In Antarctica, ice losses continue to be dominated by mass loss from West Antarctica ( 82±9 Gt yr −1 ) and, to a lesser extent, from the Antarctic Peninsula ( 13±5 Gt yr −1 ). East Antarctica remains close to a state of balance, with a small gain of 3±15 Gt yr −1 , but is the most uncertain component of Antarctica's mass balance. The dataset is publicly available at https://doi.org/10.5285/77B64C55-7166-4A06-9DEF-2E400398E452 (IMBIE Team, 2021). Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica East Antarctica Greenland Ice Sheet West Antarctica Directory of Open Access Journals: DOAJ Articles Antarctic Antarctic Peninsula East Antarctica Greenland The Antarctic West Antarctica Earth System Science Data 15 4 1597 1616 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 I. N. Otosaka A. Shepherd E. R. Ivins N.-J. Schlegel C. Amory M. R. van den Broeke M. Horwath I. Joughin M. D. King G. Krinner S. Nowicki A. J. Payne E. Rignot T. Scambos K. M. Simon B. E. Smith L. S. Sørensen I. Velicogna P. L. Whitehouse G. A C. Agosta A. P. Ahlstrøm A. Blazquez W. Colgan M. E. Engdahl X. Fettweis R. Forsberg H. Gallée A. Gardner L. Gilbert N. Gourmelen A. Groh B. C. Gunter C. Harig V. Helm S. A. Khan C. Kittel H. Konrad P. L. Langen B. S. Lecavalier C.-C. Liang B. D. Loomis M. McMillan D. Melini S. H. Mernild R. Mottram J. Mouginot J. Nilsson B. Noël M. E. Pattle W. R. Peltier N. Pie M. Roca I. Sasgen H. V. Save K.-W. Seo B. Scheuchl E. J. O. Schrama L. Schröder S. B. Simonsen T. Slater G. Spada T. C. Sutterley B. D. Vishwakarma J. M. van Wessem D. Wiese W. van der Wal B. Wouters Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020 |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
Ice losses from the Greenland and Antarctic ice sheets have accelerated since the 1990s, accounting for a significant increase in the global mean sea level. Here, we present a new 29-year record of ice sheet mass balance from 1992 to 2020 from the Ice Sheet Mass Balance Inter-comparison Exercise (IMBIE). We compare and combine 50 independent estimates of ice sheet mass balance derived from satellite observations of temporal changes in ice sheet flow, in ice sheet volume, and in Earth's gravity field. Between 1992 and 2020, the ice sheets contributed 21.0±1.9 mm to global mean sea level, with the rate of mass loss rising from 105 Gt yr −1 between 1992 and 1996 to 372 Gt yr −1 between 2016 and 2020. In Greenland, the rate of mass loss is 169±9 Gt yr −1 between 1992 and 2020, but there are large inter-annual variations in mass balance, with mass loss ranging from 86 Gt yr −1 in 2017 to 444 Gt yr −1 in 2019 due to large variability in surface mass balance. In Antarctica, ice losses continue to be dominated by mass loss from West Antarctica ( 82±9 Gt yr −1 ) and, to a lesser extent, from the Antarctic Peninsula ( 13±5 Gt yr −1 ). East Antarctica remains close to a state of balance, with a small gain of 3±15 Gt yr −1 , but is the most uncertain component of Antarctica's mass balance. The dataset is publicly available at https://doi.org/10.5285/77B64C55-7166-4A06-9DEF-2E400398E452 (IMBIE Team, 2021). |
format |
Article in Journal/Newspaper |
author |
I. N. Otosaka A. Shepherd E. R. Ivins N.-J. Schlegel C. Amory M. R. van den Broeke M. Horwath I. Joughin M. D. King G. Krinner S. Nowicki A. J. Payne E. Rignot T. Scambos K. M. Simon B. E. Smith L. S. Sørensen I. Velicogna P. L. Whitehouse G. A C. Agosta A. P. Ahlstrøm A. Blazquez W. Colgan M. E. Engdahl X. Fettweis R. Forsberg H. Gallée A. Gardner L. Gilbert N. Gourmelen A. Groh B. C. Gunter C. Harig V. Helm S. A. Khan C. Kittel H. Konrad P. L. Langen B. S. Lecavalier C.-C. Liang B. D. Loomis M. McMillan D. Melini S. H. Mernild R. Mottram J. Mouginot J. Nilsson B. Noël M. E. Pattle W. R. Peltier N. Pie M. Roca I. Sasgen H. V. Save K.-W. Seo B. Scheuchl E. J. O. Schrama L. Schröder S. B. Simonsen T. Slater G. Spada T. C. Sutterley B. D. Vishwakarma J. M. van Wessem D. Wiese W. van der Wal B. Wouters |
author_facet |
I. N. Otosaka A. Shepherd E. R. Ivins N.-J. Schlegel C. Amory M. R. van den Broeke M. Horwath I. Joughin M. D. King G. Krinner S. Nowicki A. J. Payne E. Rignot T. Scambos K. M. Simon B. E. Smith L. S. Sørensen I. Velicogna P. L. Whitehouse G. A C. Agosta A. P. Ahlstrøm A. Blazquez W. Colgan M. E. Engdahl X. Fettweis R. Forsberg H. Gallée A. Gardner L. Gilbert N. Gourmelen A. Groh B. C. Gunter C. Harig V. Helm S. A. Khan C. Kittel H. Konrad P. L. Langen B. S. Lecavalier C.-C. Liang B. D. Loomis M. McMillan D. Melini S. H. Mernild R. Mottram J. Mouginot J. Nilsson B. Noël M. E. Pattle W. R. Peltier N. Pie M. Roca I. Sasgen H. V. Save K.-W. Seo B. Scheuchl E. J. O. Schrama L. Schröder S. B. Simonsen T. Slater G. Spada T. C. Sutterley B. D. Vishwakarma J. M. van Wessem D. Wiese W. van der Wal B. Wouters |
author_sort |
I. N. Otosaka |
title |
Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020 |
title_short |
Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020 |
title_full |
Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020 |
title_fullStr |
Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020 |
title_full_unstemmed |
Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020 |
title_sort |
mass balance of the greenland and antarctic ice sheets from 1992 to 2020 |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/essd-15-1597-2023 https://doaj.org/article/57185db32eb74fc094ce8c1178d57166 |
geographic |
Antarctic Antarctic Peninsula East Antarctica Greenland The Antarctic West Antarctica |
geographic_facet |
Antarctic Antarctic Peninsula East Antarctica Greenland The Antarctic West Antarctica |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica East Antarctica Greenland Ice Sheet West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica East Antarctica Greenland Ice Sheet West Antarctica |
op_source |
Earth System Science Data, Vol 15, Pp 1597-1616 (2023) |
op_relation |
https://essd.copernicus.org/articles/15/1597/2023/essd-15-1597-2023.pdf https://doaj.org/toc/1866-3508 https://doaj.org/toc/1866-3516 doi:10.5194/essd-15-1597-2023 1866-3508 1866-3516 https://doaj.org/article/57185db32eb74fc094ce8c1178d57166 |
op_doi |
https://doi.org/10.5194/essd-15-1597-2023 |
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Earth System Science Data |
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15 |
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4 |
container_start_page |
1597 |
op_container_end_page |
1616 |
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1768377480208449536 |