Strong contrast in mass and energy balance between a coastal mountain glacier and the Greenland ice sheet
ABSTRACT We show a strong difference in surface mass and energy balance of a mountain glacier and two sites on the ice sheet at 64°N in West Greenland using stake and automated weather station observations. Net surface mass balance is on average 2.2 m w.e. less negative at the coast compared with th...
Published in: | Journal of Glaciology |
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Language: | English |
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Cambridge University Press (CUP)
2019
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Online Access: | http://dx.doi.org/10.1017/jog.2019.4 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143019000042 |
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crcambridgeupr:10.1017/jog.2019.4 2024-03-03T08:44:35+00:00 Strong contrast in mass and energy balance between a coastal mountain glacier and the Greenland ice sheet ABERMANN, JAKOB VAN AS, DIRK WACKER, STEFAN LANGLEY, KIRSTY MACHGUTH, HORST FAUSTO, ROBERT SCHJØTT 2019 http://dx.doi.org/10.1017/jog.2019.4 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143019000042 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by-nc-nd/4.0/ Journal of Glaciology volume 65, issue 250, page 263-269 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 2019 crcambridgeupr https://doi.org/10.1017/jog.2019.4 2024-02-08T08:26:13Z ABSTRACT We show a strong difference in surface mass and energy balance of a mountain glacier and two sites on the ice sheet at 64°N in West Greenland using stake and automated weather station observations. Net surface mass balance is on average 2.2 m w.e. less negative at the coast compared with the ice sheet in the same elevation. We find a larger energy turnover at the ice sheet margin on Qamanarssup Sermia than measured on the coastal mountain glacier Qassigiannguit with both energy input and output being of larger absolute value. More cloudiness and a thicker snow cover at the relatively humid coastal glacier result in smaller gains in net-shortwave radiation and smaller losses in net-longwave radiation and a less negative mass balance. Lower wind speeds at the coastal glacier result in weaker turbulent heat exchange between atmosphere and ice surface. On annual average, 17 W m −2 more energy is available for melt at the ice-sheet margin compared with the coastal glacier in the same elevation. Article in Journal/Newspaper glacier Greenland Ice Sheet Journal of Glaciology Cambridge University Press Greenland Journal of Glaciology 65 250 263 269 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes ABERMANN, JAKOB VAN AS, DIRK WACKER, STEFAN LANGLEY, KIRSTY MACHGUTH, HORST FAUSTO, ROBERT SCHJØTT Strong contrast in mass and energy balance between a coastal mountain glacier and the Greenland ice sheet |
topic_facet |
Earth-Surface Processes |
description |
ABSTRACT We show a strong difference in surface mass and energy balance of a mountain glacier and two sites on the ice sheet at 64°N in West Greenland using stake and automated weather station observations. Net surface mass balance is on average 2.2 m w.e. less negative at the coast compared with the ice sheet in the same elevation. We find a larger energy turnover at the ice sheet margin on Qamanarssup Sermia than measured on the coastal mountain glacier Qassigiannguit with both energy input and output being of larger absolute value. More cloudiness and a thicker snow cover at the relatively humid coastal glacier result in smaller gains in net-shortwave radiation and smaller losses in net-longwave radiation and a less negative mass balance. Lower wind speeds at the coastal glacier result in weaker turbulent heat exchange between atmosphere and ice surface. On annual average, 17 W m −2 more energy is available for melt at the ice-sheet margin compared with the coastal glacier in the same elevation. |
format |
Article in Journal/Newspaper |
author |
ABERMANN, JAKOB VAN AS, DIRK WACKER, STEFAN LANGLEY, KIRSTY MACHGUTH, HORST FAUSTO, ROBERT SCHJØTT |
author_facet |
ABERMANN, JAKOB VAN AS, DIRK WACKER, STEFAN LANGLEY, KIRSTY MACHGUTH, HORST FAUSTO, ROBERT SCHJØTT |
author_sort |
ABERMANN, JAKOB |
title |
Strong contrast in mass and energy balance between a coastal mountain glacier and the Greenland ice sheet |
title_short |
Strong contrast in mass and energy balance between a coastal mountain glacier and the Greenland ice sheet |
title_full |
Strong contrast in mass and energy balance between a coastal mountain glacier and the Greenland ice sheet |
title_fullStr |
Strong contrast in mass and energy balance between a coastal mountain glacier and the Greenland ice sheet |
title_full_unstemmed |
Strong contrast in mass and energy balance between a coastal mountain glacier and the Greenland ice sheet |
title_sort |
strong contrast in mass and energy balance between a coastal mountain glacier and the greenland ice sheet |
publisher |
Cambridge University Press (CUP) |
publishDate |
2019 |
url |
http://dx.doi.org/10.1017/jog.2019.4 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143019000042 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice Sheet Journal of Glaciology |
genre_facet |
glacier Greenland Ice Sheet Journal of Glaciology |
op_source |
Journal of Glaciology volume 65, issue 250, page 263-269 ISSN 0022-1430 1727-5652 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1017/jog.2019.4 |
container_title |
Journal of Glaciology |
container_volume |
65 |
container_issue |
250 |
container_start_page |
263 |
op_container_end_page |
269 |
_version_ |
1792500084813856768 |