A high resolution record of Greenland mass balance
We map recent Greenland Ice Sheet elevation change at high spatial (5-km) and temporal (monthly) resolution using CryoSat-2 altimetry. After correcting for the impact of changing snowpack properties associated with unprecedented surface melting in 2012, we find good agreement (3 cm/yr bias) with air...
Published in: | Geophysical Research Letters |
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Main Authors: | , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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American Geophysical Union (AGU)
2016
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Online Access: | https://eprints.whiterose.ac.uk/101031/ https://eprints.whiterose.ac.uk/101031/9/McMillan_et_al-2016-Geophysical_Research_Letters.pdf https://doi.org/10.1002/2016GL069666 |
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ftleedsuniv:oai:eprints.whiterose.ac.uk:101031 2023-05-15T16:21:08+02:00 A high resolution record of Greenland mass balance McMillan, M Leeson, A Shepherd, A Briggs, K Armitage, TWK Hogg, A Kuipers Munneke, P van den Broeke, M Noel, B van de Berg, WJ Ligtenberg, S Horwath, M Groh, A Muir, A Gilbert, L 2016-07-16 text https://eprints.whiterose.ac.uk/101031/ https://eprints.whiterose.ac.uk/101031/9/McMillan_et_al-2016-Geophysical_Research_Letters.pdf https://doi.org/10.1002/2016GL069666 en eng American Geophysical Union (AGU) https://eprints.whiterose.ac.uk/101031/9/McMillan_et_al-2016-Geophysical_Research_Letters.pdf McMillan, M orcid.org/0000-0002-5113-0177 , Leeson, A, Shepherd, A et al. (12 more authors) (2016) A high resolution record of Greenland mass balance. Geophysical Research Letters, 43 (13). pp. 7002-7010. ISSN 0094-8276 cc_by_4 CC-BY Article NonPeerReviewed 2016 ftleedsuniv https://doi.org/10.1002/2016GL069666 2023-01-30T21:43:22Z We map recent Greenland Ice Sheet elevation change at high spatial (5-km) and temporal (monthly) resolution using CryoSat-2 altimetry. After correcting for the impact of changing snowpack properties associated with unprecedented surface melting in 2012, we find good agreement (3 cm/yr bias) with airborne measurements. With the aid of regional climate and firn modelling, we compute high spatial and temporal resolution records of Greenland mass evolution, which correlate (R=0.96) with monthly satellite gravimetry, and reveal glacier dynamic imbalance. During 2011-2014, Greenland mass loss averaged 269±51 Gt/yr. Atmospherically-driven losses were widespread, with surface melt variability driving large fluctuations in the annual mass deficit. Terminus regions of five dynamically-thinning glaciers, which constitute less than 1% of Greenland's area, contributed more than 12% of the net ice loss. This high-resolution record demonstrates that mass deficits extending over small spatial and temporal scales have made a relatively large contribution to recent ice sheet imbalance. Article in Journal/Newspaper glacier Greenland Ice Sheet White Rose Research Online (Universities of Leeds, Sheffield & York) Greenland Geophysical Research Letters 43 13 7002 7010 |
institution |
Open Polar |
collection |
White Rose Research Online (Universities of Leeds, Sheffield & York) |
op_collection_id |
ftleedsuniv |
language |
English |
description |
We map recent Greenland Ice Sheet elevation change at high spatial (5-km) and temporal (monthly) resolution using CryoSat-2 altimetry. After correcting for the impact of changing snowpack properties associated with unprecedented surface melting in 2012, we find good agreement (3 cm/yr bias) with airborne measurements. With the aid of regional climate and firn modelling, we compute high spatial and temporal resolution records of Greenland mass evolution, which correlate (R=0.96) with monthly satellite gravimetry, and reveal glacier dynamic imbalance. During 2011-2014, Greenland mass loss averaged 269±51 Gt/yr. Atmospherically-driven losses were widespread, with surface melt variability driving large fluctuations in the annual mass deficit. Terminus regions of five dynamically-thinning glaciers, which constitute less than 1% of Greenland's area, contributed more than 12% of the net ice loss. This high-resolution record demonstrates that mass deficits extending over small spatial and temporal scales have made a relatively large contribution to recent ice sheet imbalance. |
format |
Article in Journal/Newspaper |
author |
McMillan, M Leeson, A Shepherd, A Briggs, K Armitage, TWK Hogg, A Kuipers Munneke, P van den Broeke, M Noel, B van de Berg, WJ Ligtenberg, S Horwath, M Groh, A Muir, A Gilbert, L |
spellingShingle |
McMillan, M Leeson, A Shepherd, A Briggs, K Armitage, TWK Hogg, A Kuipers Munneke, P van den Broeke, M Noel, B van de Berg, WJ Ligtenberg, S Horwath, M Groh, A Muir, A Gilbert, L A high resolution record of Greenland mass balance |
author_facet |
McMillan, M Leeson, A Shepherd, A Briggs, K Armitage, TWK Hogg, A Kuipers Munneke, P van den Broeke, M Noel, B van de Berg, WJ Ligtenberg, S Horwath, M Groh, A Muir, A Gilbert, L |
author_sort |
McMillan, M |
title |
A high resolution record of Greenland mass balance |
title_short |
A high resolution record of Greenland mass balance |
title_full |
A high resolution record of Greenland mass balance |
title_fullStr |
A high resolution record of Greenland mass balance |
title_full_unstemmed |
A high resolution record of Greenland mass balance |
title_sort |
high resolution record of greenland mass balance |
publisher |
American Geophysical Union (AGU) |
publishDate |
2016 |
url |
https://eprints.whiterose.ac.uk/101031/ https://eprints.whiterose.ac.uk/101031/9/McMillan_et_al-2016-Geophysical_Research_Letters.pdf https://doi.org/10.1002/2016GL069666 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice Sheet |
genre_facet |
glacier Greenland Ice Sheet |
op_relation |
https://eprints.whiterose.ac.uk/101031/9/McMillan_et_al-2016-Geophysical_Research_Letters.pdf McMillan, M orcid.org/0000-0002-5113-0177 , Leeson, A, Shepherd, A et al. (12 more authors) (2016) A high resolution record of Greenland mass balance. Geophysical Research Letters, 43 (13). pp. 7002-7010. ISSN 0094-8276 |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1002/2016GL069666 |
container_title |
Geophysical Research Letters |
container_volume |
43 |
container_issue |
13 |
container_start_page |
7002 |
op_container_end_page |
7010 |
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1766009158876790784 |