Closing the mass budget of a tidewater glacier: the example of Kronebreen, Svalbard
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 prescri...
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Cambridge University Press
2019
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ftdoajarticles:oai:doaj.org/article:aeefc723d16a43ada6c9d4ab92291549 2023-05-15T16:22:09+02:00 Closing the mass budget of a tidewater glacier: the example of Kronebreen, Svalbard CESAR DESCHAMPS-BERGER CHRISTOPHER NUTH WARD VAN PELT ETIENNE BERTHIER JACK KOHLER BAS ALTENA 2019-02-01T00:00:00Z https://doi.org/10.1017/jog.2018.98 https://doaj.org/article/aeefc723d16a43ada6c9d4ab92291549 EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143018000989/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2018.98 0022-1430 1727-5652 https://doaj.org/article/aeefc723d16a43ada6c9d4ab92291549 Journal of Glaciology, Vol 65, Pp 136-148 (2019) glaciological instruments and methods glacier mass balance remote sensing Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2019 ftdoajarticles https://doi.org/10.1017/jog.2018.98 2023-03-12T01:30:59Z 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 Directory of Open Access Journals: DOAJ Articles Kronebreen ENVELOPE(13.333,13.333,78.833,78.833) Svalbard Journal of Glaciology 65 249 136 148 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
glaciological instruments and methods glacier mass balance remote sensing Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
glaciological instruments and methods glacier mass balance remote sensing Environmental sciences GE1-350 Meteorology. Climatology QC851-999 CESAR DESCHAMPS-BERGER CHRISTOPHER NUTH WARD VAN PELT ETIENNE BERTHIER JACK KOHLER BAS ALTENA Closing the mass budget of a tidewater glacier: the example of Kronebreen, Svalbard |
topic_facet |
glaciological instruments and methods glacier mass balance remote sensing Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
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 |
CESAR DESCHAMPS-BERGER CHRISTOPHER NUTH WARD VAN PELT ETIENNE BERTHIER JACK KOHLER BAS ALTENA |
author_facet |
CESAR DESCHAMPS-BERGER CHRISTOPHER NUTH WARD VAN PELT ETIENNE BERTHIER JACK KOHLER BAS ALTENA |
author_sort |
CESAR DESCHAMPS-BERGER |
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 |
publishDate |
2019 |
url |
https://doi.org/10.1017/jog.2018.98 https://doaj.org/article/aeefc723d16a43ada6c9d4ab92291549 |
long_lat |
ENVELOPE(13.333,13.333,78.833,78.833) |
geographic |
Kronebreen Svalbard |
geographic_facet |
Kronebreen Svalbard |
genre |
glacier Journal of Glaciology Svalbard Tidewater |
genre_facet |
glacier Journal of Glaciology Svalbard Tidewater |
op_source |
Journal of Glaciology, Vol 65, Pp 136-148 (2019) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143018000989/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2018.98 0022-1430 1727-5652 https://doaj.org/article/aeefc723d16a43ada6c9d4ab92291549 |
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_ |
1766010124422348800 |