Mass Balance of the Greenland Ice Sheet from GRACE and Surface Mass Balance Modelling
The Greenland Ice Sheet (GrIS) is losing mass at a rate that represents a major contribution to global sea-level rise in recent decades. In this study, we use the Gravity Recovery and Climate Experiment (GRACE) data to retrieve the time series variations of the GrIS from April 2002 to June 2017. We...
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ftmdpi:oai:mdpi.com:/2073-4441/12/7/1847/ 2023-08-20T04:06:42+02:00 Mass Balance of the Greenland Ice Sheet from GRACE and Surface Mass Balance Modelling Fang Zou Robert Tenzer Hok Fok Janet Nichol agris 2020-06-28 application/pdf https://doi.org/10.3390/w12071847 EN eng Multidisciplinary Digital Publishing Institute Hydrology https://dx.doi.org/10.3390/w12071847 https://creativecommons.org/licenses/by/4.0/ Water; Volume 12; Issue 7; Pages: 1847 GRACE SMB Greenland glacier melting climate change Text 2020 ftmdpi https://doi.org/10.3390/w12071847 2023-07-31T23:41:55Z The Greenland Ice Sheet (GrIS) is losing mass at a rate that represents a major contribution to global sea-level rise in recent decades. In this study, we use the Gravity Recovery and Climate Experiment (GRACE) data to retrieve the time series variations of the GrIS from April 2002 to June 2017. We also estimate the mass balance from the RACMO2.3 and ice discharge data in order to obtain a comparative analysis and cross-validation. A detailed analysis of long-term trend and seasonal and inter-annual changes in the GrIS is implemented by GRACE and surface mass balance (SMB) modeling. The results indicate a decrease of −267.77 ± 8.68 Gt/yr of the GrIS over the 16-year period. There is a rapid decline from 2002 to 2008, which accelerated from 2009 to 2012 before declining relatively slowly from 2013 to 2017. The mass change inland is significantly smaller than that detected along coastal regions, especially in the southeastern, southwestern, and northwestern regions. The mass balance estimates from GRACE and SMB minus ice discharge (SMB-D) are very consistent. The ice discharge manifests itself mostly as a long-term trend, whereas seasonal mass variations are largely attributed to surface mass processes. The GrIS mass changes are mostly attributed to mass loss during summer. Summer mass changes are highly correlated with climate changes. Text glacier Greenland Ice Sheet MDPI Open Access Publishing Greenland Water 12 7 1847 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
GRACE SMB Greenland glacier melting climate change |
spellingShingle |
GRACE SMB Greenland glacier melting climate change Fang Zou Robert Tenzer Hok Fok Janet Nichol Mass Balance of the Greenland Ice Sheet from GRACE and Surface Mass Balance Modelling |
topic_facet |
GRACE SMB Greenland glacier melting climate change |
description |
The Greenland Ice Sheet (GrIS) is losing mass at a rate that represents a major contribution to global sea-level rise in recent decades. In this study, we use the Gravity Recovery and Climate Experiment (GRACE) data to retrieve the time series variations of the GrIS from April 2002 to June 2017. We also estimate the mass balance from the RACMO2.3 and ice discharge data in order to obtain a comparative analysis and cross-validation. A detailed analysis of long-term trend and seasonal and inter-annual changes in the GrIS is implemented by GRACE and surface mass balance (SMB) modeling. The results indicate a decrease of −267.77 ± 8.68 Gt/yr of the GrIS over the 16-year period. There is a rapid decline from 2002 to 2008, which accelerated from 2009 to 2012 before declining relatively slowly from 2013 to 2017. The mass change inland is significantly smaller than that detected along coastal regions, especially in the southeastern, southwestern, and northwestern regions. The mass balance estimates from GRACE and SMB minus ice discharge (SMB-D) are very consistent. The ice discharge manifests itself mostly as a long-term trend, whereas seasonal mass variations are largely attributed to surface mass processes. The GrIS mass changes are mostly attributed to mass loss during summer. Summer mass changes are highly correlated with climate changes. |
format |
Text |
author |
Fang Zou Robert Tenzer Hok Fok Janet Nichol |
author_facet |
Fang Zou Robert Tenzer Hok Fok Janet Nichol |
author_sort |
Fang Zou |
title |
Mass Balance of the Greenland Ice Sheet from GRACE and Surface Mass Balance Modelling |
title_short |
Mass Balance of the Greenland Ice Sheet from GRACE and Surface Mass Balance Modelling |
title_full |
Mass Balance of the Greenland Ice Sheet from GRACE and Surface Mass Balance Modelling |
title_fullStr |
Mass Balance of the Greenland Ice Sheet from GRACE and Surface Mass Balance Modelling |
title_full_unstemmed |
Mass Balance of the Greenland Ice Sheet from GRACE and Surface Mass Balance Modelling |
title_sort |
mass balance of the greenland ice sheet from grace and surface mass balance modelling |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2020 |
url |
https://doi.org/10.3390/w12071847 |
op_coverage |
agris |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice Sheet |
genre_facet |
glacier Greenland Ice Sheet |
op_source |
Water; Volume 12; Issue 7; Pages: 1847 |
op_relation |
Hydrology https://dx.doi.org/10.3390/w12071847 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/w12071847 |
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Water |
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12 |
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7 |
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1847 |
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