Surface mass balance model intercomparison for the Greenland ice sheet
A number of high resolution reconstructions of the surface mass balance (SMB) of the Greenland ice sheet (GrIS) have been produced using global re-analyses data extending back to 1958. These reconstructions have been used in a variety of applications but little is known about their consistency with...
Published in: | The Cryosphere |
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European Geosciences Union (EGU) / Copernicus Publications
2013
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Online Access: | https://eprints.lincoln.ac.uk/id/eprint/26156/ https://eprints.lincoln.ac.uk/id/eprint/26156/1/26156%20tc-7-599-2013.pdf https://doi.org/10.5194/tc-7-599-2013 |
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ftulincoln:oai:eprints.lincoln.ac.uk:26156 2023-05-15T16:27:52+02:00 Surface mass balance model intercomparison for the Greenland ice sheet Vernon, C. L. Bamber, J. L. Box, J. E. van den Broeke, M. R. Fettweis, X. Hanna, E. Huybrechts, P. 2013-04-03 application/pdf https://eprints.lincoln.ac.uk/id/eprint/26156/ https://eprints.lincoln.ac.uk/id/eprint/26156/1/26156%20tc-7-599-2013.pdf https://doi.org/10.5194/tc-7-599-2013 en eng European Geosciences Union (EGU) / Copernicus Publications https://eprints.lincoln.ac.uk/id/eprint/26156/1/26156%20tc-7-599-2013.pdf Vernon, C. L., Bamber, J. L., Box, J. E., van den Broeke, M. R., Fettweis, X., Hanna, E. and Huybrechts, P. (2013) Surface mass balance model intercomparison for the Greenland ice sheet. Cryosphere, 7 . pp. 599-614. ISSN 1994-0416 doi:10.5194/tc-7-599-2013 cc_by CC-BY F890 Geographical and Environmental Sciences not elsewhere classified Article PeerReviewed 2013 ftulincoln https://doi.org/10.5194/tc-7-599-2013 2022-03-02T20:07:24Z A number of high resolution reconstructions of the surface mass balance (SMB) of the Greenland ice sheet (GrIS) have been produced using global re-analyses data extending back to 1958. These reconstructions have been used in a variety of applications but little is known about their consistency with each other and the impact of the downscaling method on the result. Here, we compare four reconstructions for the period 1960–2008 to assess the consistency in regional, seasonal and integrated SMB components. Total SMB estimates for the GrIS are in agreement within 34% of the four model average when a common ice sheet mask is used. When models' native land/ice/sea masks are used this spread increases to 57%. Variation in the spread of components of SMB from their mean: runoff 42% (29% native masks), precipitation 20% (24% native masks), melt 38% (74% native masks), refreeze 83% (142% native masks) show, with the exception of refreeze, a similar level of agreement once a common mask is used. Previously noted differences in the models' estimates are partially explained by ice sheet mask differences. Regionally there is less agreement, suggesting spatially compensating errors improve the integrated estimates. Article in Journal/Newspaper Greenland Ice Sheet University of Lincoln: Lincoln Repository Greenland The Cryosphere 7 2 599 614 |
institution |
Open Polar |
collection |
University of Lincoln: Lincoln Repository |
op_collection_id |
ftulincoln |
language |
English |
topic |
F890 Geographical and Environmental Sciences not elsewhere classified |
spellingShingle |
F890 Geographical and Environmental Sciences not elsewhere classified Vernon, C. L. Bamber, J. L. Box, J. E. van den Broeke, M. R. Fettweis, X. Hanna, E. Huybrechts, P. Surface mass balance model intercomparison for the Greenland ice sheet |
topic_facet |
F890 Geographical and Environmental Sciences not elsewhere classified |
description |
A number of high resolution reconstructions of the surface mass balance (SMB) of the Greenland ice sheet (GrIS) have been produced using global re-analyses data extending back to 1958. These reconstructions have been used in a variety of applications but little is known about their consistency with each other and the impact of the downscaling method on the result. Here, we compare four reconstructions for the period 1960–2008 to assess the consistency in regional, seasonal and integrated SMB components. Total SMB estimates for the GrIS are in agreement within 34% of the four model average when a common ice sheet mask is used. When models' native land/ice/sea masks are used this spread increases to 57%. Variation in the spread of components of SMB from their mean: runoff 42% (29% native masks), precipitation 20% (24% native masks), melt 38% (74% native masks), refreeze 83% (142% native masks) show, with the exception of refreeze, a similar level of agreement once a common mask is used. Previously noted differences in the models' estimates are partially explained by ice sheet mask differences. Regionally there is less agreement, suggesting spatially compensating errors improve the integrated estimates. |
format |
Article in Journal/Newspaper |
author |
Vernon, C. L. Bamber, J. L. Box, J. E. van den Broeke, M. R. Fettweis, X. Hanna, E. Huybrechts, P. |
author_facet |
Vernon, C. L. Bamber, J. L. Box, J. E. van den Broeke, M. R. Fettweis, X. Hanna, E. Huybrechts, P. |
author_sort |
Vernon, C. L. |
title |
Surface mass balance model intercomparison for the Greenland ice sheet |
title_short |
Surface mass balance model intercomparison for the Greenland ice sheet |
title_full |
Surface mass balance model intercomparison for the Greenland ice sheet |
title_fullStr |
Surface mass balance model intercomparison for the Greenland ice sheet |
title_full_unstemmed |
Surface mass balance model intercomparison for the Greenland ice sheet |
title_sort |
surface mass balance model intercomparison for the greenland ice sheet |
publisher |
European Geosciences Union (EGU) / Copernicus Publications |
publishDate |
2013 |
url |
https://eprints.lincoln.ac.uk/id/eprint/26156/ https://eprints.lincoln.ac.uk/id/eprint/26156/1/26156%20tc-7-599-2013.pdf https://doi.org/10.5194/tc-7-599-2013 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_relation |
https://eprints.lincoln.ac.uk/id/eprint/26156/1/26156%20tc-7-599-2013.pdf Vernon, C. L., Bamber, J. L., Box, J. E., van den Broeke, M. R., Fettweis, X., Hanna, E. and Huybrechts, P. (2013) Surface mass balance model intercomparison for the Greenland ice sheet. Cryosphere, 7 . pp. 599-614. ISSN 1994-0416 doi:10.5194/tc-7-599-2013 |
op_rights |
cc_by |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/tc-7-599-2013 |
container_title |
The Cryosphere |
container_volume |
7 |
container_issue |
2 |
container_start_page |
599 |
op_container_end_page |
614 |
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1766017421355778048 |