Accelerated ice-sheet mass loss in antarctica from 18-year satellite laser ranging measurements
Accurate estimation of the ice-sheet mass balance in Antarctic is very difficult due to complex ice sheet condition and sparse in-situ measurements. In this paper, the low-degree gravity field coefficients of up to degree and order 5 derived from Satellite Laser Ranging (SLR) measurements are the fi...
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ftbuelentecevitu:oai:acikarsiv.beun.edu.tr:20.500.12628/4107 2024-09-09T19:05:38+00:00 Accelerated ice-sheet mass loss in antarctica from 18-year satellite laser ranging measurements Jin S. Abd-Elbaky M. Feng G. Jin S. Abd-Elbaky M. Feng G. Zonguldak Bülent Ecevit Üniversitesi 2019-12-23 https://hdl.handle.net/20.500.12628/4107 https://doi.org/10.4401/ag-6782 eng eng Editrice Compositori s.r.l. Annals of Geophysics 10.4401/ag-6782 Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı 1 59 1593-5213 https://dx.doi.org/10.4401/ag-6782 https://hdl.handle.net/20.500.12628/4107 info:eu-repo/semantics/closedAccess article 2019 ftbuelentecevitu https://doi.org/20.500.12628/410710.4401/ag-6782 2024-06-21T09:32:27Z Accurate estimation of the ice-sheet mass balance in Antarctic is very difficult due to complex ice sheet condition and sparse in-situ measurements. In this paper, the low-degree gravity field coefficients of up to degree and order 5 derived from Satellite Laser Ranging (SLR) measurements are the first used to determine the ice mass variations in Antarctica for the period 1993-2011, which are compared to Gravity Recovery and Climate Experiment (GRACE). Results show that the ice mass is is decreasing at the rate of -36±13 Gt/y in Antarctica, -42±11 Gt/y in West Antarctica and increasing at 6±10 Gt/y in East Antarctica from 1993 to 2011. The ice mass variations from the SLR 5×5 have a good agreement with the GRACE 5×5, GRACE 5×5 (1&2) and GRACE (60×60) for the entire continent since 2003, but SLR solution of 5×5 is not sufficient to quantify ice losses in West and East Antarctica, respectively. The rate of ice loss in Antarctica is -28±17 Gt/y for 1993-2002 and -55±17 Gt/y for 2003-2011 within one sigma, indicating significant accelerated ice mass losses since 2003. Furthermore, the results from SLR are comparable with GRACE measurements. © 2016 by the Istituto Nazionale di Geofisica e Vulcanologia. All rights reserved. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ice Sheet West Antarctica DSpace@BEÜ - Zonguldak Bülent Ecevit University Institutional Repository Antarctic East Antarctica West Antarctica Annals of Geophysics 59 1 |
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Open Polar |
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DSpace@BEÜ - Zonguldak Bülent Ecevit University Institutional Repository |
op_collection_id |
ftbuelentecevitu |
language |
English |
description |
Accurate estimation of the ice-sheet mass balance in Antarctic is very difficult due to complex ice sheet condition and sparse in-situ measurements. In this paper, the low-degree gravity field coefficients of up to degree and order 5 derived from Satellite Laser Ranging (SLR) measurements are the first used to determine the ice mass variations in Antarctica for the period 1993-2011, which are compared to Gravity Recovery and Climate Experiment (GRACE). Results show that the ice mass is is decreasing at the rate of -36±13 Gt/y in Antarctica, -42±11 Gt/y in West Antarctica and increasing at 6±10 Gt/y in East Antarctica from 1993 to 2011. The ice mass variations from the SLR 5×5 have a good agreement with the GRACE 5×5, GRACE 5×5 (1&2) and GRACE (60×60) for the entire continent since 2003, but SLR solution of 5×5 is not sufficient to quantify ice losses in West and East Antarctica, respectively. The rate of ice loss in Antarctica is -28±17 Gt/y for 1993-2002 and -55±17 Gt/y for 2003-2011 within one sigma, indicating significant accelerated ice mass losses since 2003. Furthermore, the results from SLR are comparable with GRACE measurements. © 2016 by the Istituto Nazionale di Geofisica e Vulcanologia. All rights reserved. |
author2 |
Jin S. Abd-Elbaky M. Feng G. Zonguldak Bülent Ecevit Üniversitesi |
format |
Article in Journal/Newspaper |
author |
Jin S. Abd-Elbaky M. Feng G. |
spellingShingle |
Jin S. Abd-Elbaky M. Feng G. Accelerated ice-sheet mass loss in antarctica from 18-year satellite laser ranging measurements |
author_facet |
Jin S. Abd-Elbaky M. Feng G. |
author_sort |
Jin S. |
title |
Accelerated ice-sheet mass loss in antarctica from 18-year satellite laser ranging measurements |
title_short |
Accelerated ice-sheet mass loss in antarctica from 18-year satellite laser ranging measurements |
title_full |
Accelerated ice-sheet mass loss in antarctica from 18-year satellite laser ranging measurements |
title_fullStr |
Accelerated ice-sheet mass loss in antarctica from 18-year satellite laser ranging measurements |
title_full_unstemmed |
Accelerated ice-sheet mass loss in antarctica from 18-year satellite laser ranging measurements |
title_sort |
accelerated ice-sheet mass loss in antarctica from 18-year satellite laser ranging measurements |
publisher |
Editrice Compositori s.r.l. |
publishDate |
2019 |
url |
https://hdl.handle.net/20.500.12628/4107 https://doi.org/10.4401/ag-6782 |
geographic |
Antarctic East Antarctica West Antarctica |
geographic_facet |
Antarctic East Antarctica West Antarctica |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet West Antarctica |
op_relation |
Annals of Geophysics 10.4401/ag-6782 Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı 1 59 1593-5213 https://dx.doi.org/10.4401/ag-6782 https://hdl.handle.net/20.500.12628/4107 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/20.500.12628/410710.4401/ag-6782 |
container_title |
Annals of Geophysics |
container_volume |
59 |
container_issue |
1 |
_version_ |
1809819630678573056 |