The Short-term Mass Change of Greenland Ice Sheet and the Atmospheric Forcing
Abstract In recent decades, the global warming drives the huge ice sheet melting in northern hemisphere. Previous studies on long-term melting rates of Greenland have basically reached agreement, but there is still a lack of the knowledge of the pattern the short-term ice mass change, makes it diffi...
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crioppubl:10.1088/1755-1315/660/1/012091 2024-06-02T08:07:21+00:00 The Short-term Mass Change of Greenland Ice Sheet and the Atmospheric Forcing Peng, Zhenran Wang, Linsong Chen, Chao 2021 http://dx.doi.org/10.1088/1755-1315/660/1/012091 https://iopscience.iop.org/article/10.1088/1755-1315/660/1/012091 https://iopscience.iop.org/article/10.1088/1755-1315/660/1/012091/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining IOP Conference Series: Earth and Environmental Science volume 660, issue 1, page 012091 ISSN 1755-1307 1755-1315 journal-article 2021 crioppubl https://doi.org/10.1088/1755-1315/660/1/012091 2024-05-07T14:01:23Z Abstract In recent decades, the global warming drives the huge ice sheet melting in northern hemisphere. Previous studies on long-term melting rates of Greenland have basically reached agreement, but there is still a lack of the knowledge of the pattern the short-term ice mass change, makes it difficult to fulfill the understanding of the mechanism of the ice sheet. In this study, we used Gravity Recovery and Climate Experiment (GRACE) RL06 data to derive the time series of mass variation of Greenland Ice Sheet (GrIS), from January 2003 to December 2015. We derived the short-term mass change rate during 2003-2015 and found that the GrIS has experienced four melting stages, i.e., a steady melting (-204.4 Gt/yr) phase form 2003 to 2009, an abrupt accelerating (-384.6 Gt/yr) phase form 2010 to 2012, an abnormal pause (+24.8 Gt/yr) year in 2013 and a recovering (-207.3 Gt/yr) phase from 2014 to 2015. In addition, using ensemble empirical mode decomposition (EEMD), the high frequency signal has been removed and the annual mass change has been studied, which shows inter-annual variability. Meanwhile, we correlated the annual mass change with the Greenland Blocking Index (GBI) and North Atlantic Oscillation (NAO) during summertime and the correlation for 2003-2015 was found at r =-0.63 between the summer GBI and the annual mass change, while r =0.57 between summer NAO and the annual mass change. Our results indicate that the short-term mass change of GrIS mainly forced by atmospheric variability. Article in Journal/Newspaper Greenland Ice Sheet North Atlantic North Atlantic oscillation IOP Publishing Greenland IOP Conference Series: Earth and Environmental Science 660 1 012091 |
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Abstract In recent decades, the global warming drives the huge ice sheet melting in northern hemisphere. Previous studies on long-term melting rates of Greenland have basically reached agreement, but there is still a lack of the knowledge of the pattern the short-term ice mass change, makes it difficult to fulfill the understanding of the mechanism of the ice sheet. In this study, we used Gravity Recovery and Climate Experiment (GRACE) RL06 data to derive the time series of mass variation of Greenland Ice Sheet (GrIS), from January 2003 to December 2015. We derived the short-term mass change rate during 2003-2015 and found that the GrIS has experienced four melting stages, i.e., a steady melting (-204.4 Gt/yr) phase form 2003 to 2009, an abrupt accelerating (-384.6 Gt/yr) phase form 2010 to 2012, an abnormal pause (+24.8 Gt/yr) year in 2013 and a recovering (-207.3 Gt/yr) phase from 2014 to 2015. In addition, using ensemble empirical mode decomposition (EEMD), the high frequency signal has been removed and the annual mass change has been studied, which shows inter-annual variability. Meanwhile, we correlated the annual mass change with the Greenland Blocking Index (GBI) and North Atlantic Oscillation (NAO) during summertime and the correlation for 2003-2015 was found at r =-0.63 between the summer GBI and the annual mass change, while r =0.57 between summer NAO and the annual mass change. Our results indicate that the short-term mass change of GrIS mainly forced by atmospheric variability. |
format |
Article in Journal/Newspaper |
author |
Peng, Zhenran Wang, Linsong Chen, Chao |
spellingShingle |
Peng, Zhenran Wang, Linsong Chen, Chao The Short-term Mass Change of Greenland Ice Sheet and the Atmospheric Forcing |
author_facet |
Peng, Zhenran Wang, Linsong Chen, Chao |
author_sort |
Peng, Zhenran |
title |
The Short-term Mass Change of Greenland Ice Sheet and the Atmospheric Forcing |
title_short |
The Short-term Mass Change of Greenland Ice Sheet and the Atmospheric Forcing |
title_full |
The Short-term Mass Change of Greenland Ice Sheet and the Atmospheric Forcing |
title_fullStr |
The Short-term Mass Change of Greenland Ice Sheet and the Atmospheric Forcing |
title_full_unstemmed |
The Short-term Mass Change of Greenland Ice Sheet and the Atmospheric Forcing |
title_sort |
short-term mass change of greenland ice sheet and the atmospheric forcing |
publisher |
IOP Publishing |
publishDate |
2021 |
url |
http://dx.doi.org/10.1088/1755-1315/660/1/012091 https://iopscience.iop.org/article/10.1088/1755-1315/660/1/012091 https://iopscience.iop.org/article/10.1088/1755-1315/660/1/012091/pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet North Atlantic North Atlantic oscillation |
genre_facet |
Greenland Ice Sheet North Atlantic North Atlantic oscillation |
op_source |
IOP Conference Series: Earth and Environmental Science volume 660, issue 1, page 012091 ISSN 1755-1307 1755-1315 |
op_rights |
http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1755-1315/660/1/012091 |
container_title |
IOP Conference Series: Earth and Environmental Science |
container_volume |
660 |
container_issue |
1 |
container_start_page |
012091 |
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1800752428064178176 |