Closing the mass budget of a tidewater glacier: the example of Kronebreen, Svalbard
ABSTRACT In this study, we combine remote sensing, in situ and model-derived datasets from 1966 to 2014 to calculate the mass-balance components of Kronebreen, a fast-flowing tidewater glacier in Svalbard. For the well-surveyed period 2009–2014, we are able to close the glacier mass budget within th...
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Language: | English |
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Cambridge University Press (CUP)
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Online Access: | http://dx.doi.org/10.1017/jog.2018.98 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143018000989 |
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crcambridgeupr:10.1017/jog.2018.98 2024-03-03T08:44:39+00:00 Closing the mass budget of a tidewater glacier: the example of Kronebreen, Svalbard DESCHAMPS-BERGER, CESAR NUTH, CHRISTOPHER VAN PELT, WARD BERTHIER, ETIENNE KOHLER, JACK ALTENA, BAS 2019 http://dx.doi.org/10.1017/jog.2018.98 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143018000989 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by-nc-sa/4.0/ Journal of Glaciology volume 65, issue 249, page 136-148 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 2019 crcambridgeupr https://doi.org/10.1017/jog.2018.98 2024-02-08T08:31:18Z ABSTRACT In this study, we combine remote sensing, in situ and model-derived datasets from 1966 to 2014 to calculate the mass-balance components of Kronebreen, a fast-flowing tidewater glacier in Svalbard. For the well-surveyed period 2009–2014, we are able to close the glacier mass budget within the prescribed errors. During these 5 years, the glacier geodetic mass balance was −0.69 ± 0.12 m w.e. a −1 , while the mass budget method led to a total mass balance of −0.92 ± 0.16 m w.e. a −1 , as a consequence of a strong frontal ablation (−0.78 ± 0.11 m w.e. a −1 ), and a slightly negative climatic mass balance (−0.14 ± 0.11 m w.e. a −1 ). The trend towards more negative climatic mass balance between 1966–1990 (+0.20 ± 0.05 m w.e. a −1 ) and 2009–2014 is not reflected in the geodetic mass balance trend. Therefore, we suspect a reduction in ice-discharge in the most recent period. Yet, these multidecadal changes in ice-discharge cannot be measured from the available observations and thus are only estimated with relatively large errors as a residual of the mass continuity equation. Our study presents the multidecadal evolution of the dynamics and mass balance of a tidewater glacier and illustrates the errors introduced by inferring one unmeasured mass-balance component from the others. Article in Journal/Newspaper glacier Journal of Glaciology Svalbard Tidewater Cambridge University Press Svalbard Kronebreen ENVELOPE(13.333,13.333,78.833,78.833) Journal of Glaciology 65 249 136 148 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes DESCHAMPS-BERGER, CESAR NUTH, CHRISTOPHER VAN PELT, WARD BERTHIER, ETIENNE KOHLER, JACK ALTENA, BAS Closing the mass budget of a tidewater glacier: the example of Kronebreen, Svalbard |
topic_facet |
Earth-Surface Processes |
description |
ABSTRACT In this study, we combine remote sensing, in situ and model-derived datasets from 1966 to 2014 to calculate the mass-balance components of Kronebreen, a fast-flowing tidewater glacier in Svalbard. For the well-surveyed period 2009–2014, we are able to close the glacier mass budget within the prescribed errors. During these 5 years, the glacier geodetic mass balance was −0.69 ± 0.12 m w.e. a −1 , while the mass budget method led to a total mass balance of −0.92 ± 0.16 m w.e. a −1 , as a consequence of a strong frontal ablation (−0.78 ± 0.11 m w.e. a −1 ), and a slightly negative climatic mass balance (−0.14 ± 0.11 m w.e. a −1 ). The trend towards more negative climatic mass balance between 1966–1990 (+0.20 ± 0.05 m w.e. a −1 ) and 2009–2014 is not reflected in the geodetic mass balance trend. Therefore, we suspect a reduction in ice-discharge in the most recent period. Yet, these multidecadal changes in ice-discharge cannot be measured from the available observations and thus are only estimated with relatively large errors as a residual of the mass continuity equation. Our study presents the multidecadal evolution of the dynamics and mass balance of a tidewater glacier and illustrates the errors introduced by inferring one unmeasured mass-balance component from the others. |
format |
Article in Journal/Newspaper |
author |
DESCHAMPS-BERGER, CESAR NUTH, CHRISTOPHER VAN PELT, WARD BERTHIER, ETIENNE KOHLER, JACK ALTENA, BAS |
author_facet |
DESCHAMPS-BERGER, CESAR NUTH, CHRISTOPHER VAN PELT, WARD BERTHIER, ETIENNE KOHLER, JACK ALTENA, BAS |
author_sort |
DESCHAMPS-BERGER, CESAR |
title |
Closing the mass budget of a tidewater glacier: the example of Kronebreen, Svalbard |
title_short |
Closing the mass budget of a tidewater glacier: the example of Kronebreen, Svalbard |
title_full |
Closing the mass budget of a tidewater glacier: the example of Kronebreen, Svalbard |
title_fullStr |
Closing the mass budget of a tidewater glacier: the example of Kronebreen, Svalbard |
title_full_unstemmed |
Closing the mass budget of a tidewater glacier: the example of Kronebreen, Svalbard |
title_sort |
closing the mass budget of a tidewater glacier: the example of kronebreen, svalbard |
publisher |
Cambridge University Press (CUP) |
publishDate |
2019 |
url |
http://dx.doi.org/10.1017/jog.2018.98 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143018000989 |
long_lat |
ENVELOPE(13.333,13.333,78.833,78.833) |
geographic |
Svalbard Kronebreen |
geographic_facet |
Svalbard Kronebreen |
genre |
glacier Journal of Glaciology Svalbard Tidewater |
genre_facet |
glacier Journal of Glaciology Svalbard Tidewater |
op_source |
Journal of Glaciology volume 65, issue 249, page 136-148 ISSN 0022-1430 1727-5652 |
op_rights |
http://creativecommons.org/licenses/by-nc-sa/4.0/ |
op_doi |
https://doi.org/10.1017/jog.2018.98 |
container_title |
Journal of Glaciology |
container_volume |
65 |
container_issue |
249 |
container_start_page |
136 |
op_container_end_page |
148 |
_version_ |
1792500142502313984 |