Mass balance of the {Antarctic} {Ice} {Sheet} from 1992 to 2017
The Antarctic Ice Sheet is an important indicator of climate change and driver of sea-level rise. Here we combine satellite observations of its changing volume, flow and gravitational attraction with modelling of its surface mass balance to show that it lost 2,720 ± 1,390 billion tonnes of ice betwe...
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fttumuenchen:oai:mediatum.ub.tum.de:node/1445968 2023-05-15T14:02:06+02:00 Mass balance of the {Antarctic} {Ice} {Sheet} from 1992 to 2017 The IMBIE Team 2018-06-14 http://mediatum.ub.tum.de/node?id=1445968 https://doi.org/10.1038/s41586-018-0179-y eng eng info:eu-repo/semantics/openAccess info:eu-repo/classification/ddc/ article 2018 fttumuenchen https://doi.org/10.1038/s41586-018-0179-y 2018-06-17T22:38:08Z The Antarctic Ice Sheet is an important indicator of climate change and driver of sea-level rise. Here we combine satellite observations of its changing volume, flow and gravitational attraction with modelling of its surface mass balance to show that it lost 2,720 ± 1,390 billion tonnes of ice between 1992 and 2017, which corresponds to an increase in mean sea level of 7.6 ± 3.9 millimetres (errors are one standard deviation). Over this period, ocean-driven melting has caused rates of ice loss from West Antarctica to increase from 53 ± 29 billion to 159 ± 26 billion tonnes per year; ice-shelf collapse has increased the rate of ice loss from the Antarctic Peninsula from 7 ± 13 billion to 33 ± 16 billion tonnes per year. We find large variations in and among model estimates of surface mass balance and glacial isostatic adjustment for East Antarctica, with its average rate of mass gain over the period 1992–2017 (5 ± 46 billion tonnes per year) being the least certain. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica East Antarctica Ice Sheet Ice Shelf West Antarctica Munich University of Technology (TUM): mediaTUM Antarctic Antarctic Peninsula East Antarctica The Antarctic West Antarctica Nature 558 7709 219 222 |
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Munich University of Technology (TUM): mediaTUM |
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fttumuenchen |
language |
English |
topic |
info:eu-repo/classification/ddc/ |
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info:eu-repo/classification/ddc/ The IMBIE Team Mass balance of the {Antarctic} {Ice} {Sheet} from 1992 to 2017 |
topic_facet |
info:eu-repo/classification/ddc/ |
description |
The Antarctic Ice Sheet is an important indicator of climate change and driver of sea-level rise. Here we combine satellite observations of its changing volume, flow and gravitational attraction with modelling of its surface mass balance to show that it lost 2,720 ± 1,390 billion tonnes of ice between 1992 and 2017, which corresponds to an increase in mean sea level of 7.6 ± 3.9 millimetres (errors are one standard deviation). Over this period, ocean-driven melting has caused rates of ice loss from West Antarctica to increase from 53 ± 29 billion to 159 ± 26 billion tonnes per year; ice-shelf collapse has increased the rate of ice loss from the Antarctic Peninsula from 7 ± 13 billion to 33 ± 16 billion tonnes per year. We find large variations in and among model estimates of surface mass balance and glacial isostatic adjustment for East Antarctica, with its average rate of mass gain over the period 1992–2017 (5 ± 46 billion tonnes per year) being the least certain. |
format |
Article in Journal/Newspaper |
author |
The IMBIE Team |
author_facet |
The IMBIE Team |
author_sort |
The IMBIE Team |
title |
Mass balance of the {Antarctic} {Ice} {Sheet} from 1992 to 2017 |
title_short |
Mass balance of the {Antarctic} {Ice} {Sheet} from 1992 to 2017 |
title_full |
Mass balance of the {Antarctic} {Ice} {Sheet} from 1992 to 2017 |
title_fullStr |
Mass balance of the {Antarctic} {Ice} {Sheet} from 1992 to 2017 |
title_full_unstemmed |
Mass balance of the {Antarctic} {Ice} {Sheet} from 1992 to 2017 |
title_sort |
mass balance of the {antarctic} {ice} {sheet} from 1992 to 2017 |
publishDate |
2018 |
url |
http://mediatum.ub.tum.de/node?id=1445968 https://doi.org/10.1038/s41586-018-0179-y |
geographic |
Antarctic Antarctic Peninsula East Antarctica The Antarctic West Antarctica |
geographic_facet |
Antarctic Antarctic Peninsula East Antarctica The Antarctic West Antarctica |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica East Antarctica Ice Sheet Ice Shelf West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica East Antarctica Ice Sheet Ice Shelf West Antarctica |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41586-018-0179-y |
container_title |
Nature |
container_volume |
558 |
container_issue |
7709 |
container_start_page |
219 |
op_container_end_page |
222 |
_version_ |
1766272176550313984 |