The land ice contribution to sea level during the satellite era
Since 1992, there has been a revolution in our ability to quantify the land ice contribution to SLR using a variety of satellite missions and technologies. Each mission has provided unique, but sometimes conflicting, insights into the mass trends of land ice. Over the last decade, over fifty estimat...
Published in: | Environmental Research Letters |
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Online Access: | https://hdl.handle.net/1983/58218615-dedd-43a8-a8ea-79fb83130613 https://research-information.bris.ac.uk/en/publications/58218615-dedd-43a8-a8ea-79fb83130613 https://doi.org/10.1088/1748-9326/aac2f0 https://research-information.bris.ac.uk/ws/files/159893477/Bamber_2018_Environ._Res._Lett._13_063008.pdf https://doi.pangaea.de/10.1594/PANGAEA.890030 https://www.globalmass.eu/a-new-estimate-of-the-contribution-of-ice-sheets-and-glaciers-to-global-sea-level-rise-since-1992/ |
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ftubristolcris:oai:research-information.bris.ac.uk:publications/58218615-dedd-43a8-a8ea-79fb83130613 2024-04-28T08:01:50+00:00 The land ice contribution to sea level during the satellite era Bamber, Jonathan Westaway, Richard Martin Marzeion, Ben Wouters, Bert 2018-06 application/pdf https://hdl.handle.net/1983/58218615-dedd-43a8-a8ea-79fb83130613 https://research-information.bris.ac.uk/en/publications/58218615-dedd-43a8-a8ea-79fb83130613 https://doi.org/10.1088/1748-9326/aac2f0 https://research-information.bris.ac.uk/ws/files/159893477/Bamber_2018_Environ._Res._Lett._13_063008.pdf https://doi.pangaea.de/10.1594/PANGAEA.890030 https://www.globalmass.eu/a-new-estimate-of-the-contribution-of-ice-sheets-and-glaciers-to-global-sea-level-rise-since-1992/ eng eng info:eu-repo/grantAgreement/EC/H2020/694188 https://research-information.bris.ac.uk/en/publications/58218615-dedd-43a8-a8ea-79fb83130613 info:eu-repo/semantics/openAccess Bamber , J , Westaway , R M , Marzeion , B & Wouters , B 2018 , ' The land ice contribution to sea level during the satellite era ' , Environmental Research Letters , vol. 13 , no. 6 , 063008 . https://doi.org/10.1088/1748-9326/aac2f0 /dk/atira/pure/core/keywords/globalmass name=GlobalMass article 2018 ftubristolcris https://doi.org/10.1088/1748-9326/aac2f0 2024-04-03T15:47:10Z Since 1992, there has been a revolution in our ability to quantify the land ice contribution to SLR using a variety of satellite missions and technologies. Each mission has provided unique, but sometimes conflicting, insights into the mass trends of land ice. Over the last decade, over fifty estimates of land ice trends have been published, providing a confusing and often inconsistent picture. The IPCC Fifth Assessment Report (AR5) attempted to synthesise estimates published up to early 2013. Since then, considerable advances have been made in understanding the origin of the inconsistencies, reducing uncertainties in estimates and extending time series. We assess and synthesise results published, primarily, since the AR5, to produce a consistent estimate of land ice mass trends during the satellite era (1992 to 2016). We combine observations from multiple missions and approaches including sea level budget analyses. Our resulting synthesis is both consistent and rigorous, drawing on i) the published literature, ii) expert assessment of that literature, and iii) a new analysis of Arctic glacier and ice cap trends combined with statistical modelling. We present annual and pentad (five-year mean) time series for the East, West Antarctic and Greenland Ice Sheets and glaciers separately and combined. When averaged over pentads, covering the entire period considered, we obtain a monotonic trend in mass contribution to the oceans, increasing from 0.31±0.35 mm of sea level equivalent for 1992-1996 to 1.85±0.13 for 2012-2016. Our integrated land ice trend is lower than many estimates of GRACE-derived ocean mass change for the same periods. This is due, in part, to a smaller estimate for glacier and ice cap mass trends compared to previous assessments. We discuss this, and other likely reasons, for the difference between GRACE ocean mass and land ice trends. Article in Journal/Newspaper Antarc* Antarctic Arctic glacier Greenland Ice cap University of Bristol: Bristol Research Environmental Research Letters 13 6 063008 |
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University of Bristol: Bristol Research |
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ftubristolcris |
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English |
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/dk/atira/pure/core/keywords/globalmass name=GlobalMass |
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/dk/atira/pure/core/keywords/globalmass name=GlobalMass Bamber, Jonathan Westaway, Richard Martin Marzeion, Ben Wouters, Bert The land ice contribution to sea level during the satellite era |
topic_facet |
/dk/atira/pure/core/keywords/globalmass name=GlobalMass |
description |
Since 1992, there has been a revolution in our ability to quantify the land ice contribution to SLR using a variety of satellite missions and technologies. Each mission has provided unique, but sometimes conflicting, insights into the mass trends of land ice. Over the last decade, over fifty estimates of land ice trends have been published, providing a confusing and often inconsistent picture. The IPCC Fifth Assessment Report (AR5) attempted to synthesise estimates published up to early 2013. Since then, considerable advances have been made in understanding the origin of the inconsistencies, reducing uncertainties in estimates and extending time series. We assess and synthesise results published, primarily, since the AR5, to produce a consistent estimate of land ice mass trends during the satellite era (1992 to 2016). We combine observations from multiple missions and approaches including sea level budget analyses. Our resulting synthesis is both consistent and rigorous, drawing on i) the published literature, ii) expert assessment of that literature, and iii) a new analysis of Arctic glacier and ice cap trends combined with statistical modelling. We present annual and pentad (five-year mean) time series for the East, West Antarctic and Greenland Ice Sheets and glaciers separately and combined. When averaged over pentads, covering the entire period considered, we obtain a monotonic trend in mass contribution to the oceans, increasing from 0.31±0.35 mm of sea level equivalent for 1992-1996 to 1.85±0.13 for 2012-2016. Our integrated land ice trend is lower than many estimates of GRACE-derived ocean mass change for the same periods. This is due, in part, to a smaller estimate for glacier and ice cap mass trends compared to previous assessments. We discuss this, and other likely reasons, for the difference between GRACE ocean mass and land ice trends. |
format |
Article in Journal/Newspaper |
author |
Bamber, Jonathan Westaway, Richard Martin Marzeion, Ben Wouters, Bert |
author_facet |
Bamber, Jonathan Westaway, Richard Martin Marzeion, Ben Wouters, Bert |
author_sort |
Bamber, Jonathan |
title |
The land ice contribution to sea level during the satellite era |
title_short |
The land ice contribution to sea level during the satellite era |
title_full |
The land ice contribution to sea level during the satellite era |
title_fullStr |
The land ice contribution to sea level during the satellite era |
title_full_unstemmed |
The land ice contribution to sea level during the satellite era |
title_sort |
land ice contribution to sea level during the satellite era |
publishDate |
2018 |
url |
https://hdl.handle.net/1983/58218615-dedd-43a8-a8ea-79fb83130613 https://research-information.bris.ac.uk/en/publications/58218615-dedd-43a8-a8ea-79fb83130613 https://doi.org/10.1088/1748-9326/aac2f0 https://research-information.bris.ac.uk/ws/files/159893477/Bamber_2018_Environ._Res._Lett._13_063008.pdf https://doi.pangaea.de/10.1594/PANGAEA.890030 https://www.globalmass.eu/a-new-estimate-of-the-contribution-of-ice-sheets-and-glaciers-to-global-sea-level-rise-since-1992/ |
genre |
Antarc* Antarctic Arctic glacier Greenland Ice cap |
genre_facet |
Antarc* Antarctic Arctic glacier Greenland Ice cap |
op_source |
Bamber , J , Westaway , R M , Marzeion , B & Wouters , B 2018 , ' The land ice contribution to sea level during the satellite era ' , Environmental Research Letters , vol. 13 , no. 6 , 063008 . https://doi.org/10.1088/1748-9326/aac2f0 |
op_relation |
info:eu-repo/grantAgreement/EC/H2020/694188 https://research-information.bris.ac.uk/en/publications/58218615-dedd-43a8-a8ea-79fb83130613 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1088/1748-9326/aac2f0 |
container_title |
Environmental Research Letters |
container_volume |
13 |
container_issue |
6 |
container_start_page |
063008 |
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1797573412319657984 |