Closing the mass budget of a tidewater glacier, an 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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International Glaciological Society
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ftoslouniv:oai:www.duo.uio.no:10852/67907 2023-05-15T16:22:09+02:00 Closing the mass budget of a tidewater glacier, an example of Kronebreen, Svalbard Deschamps-Berger, Cesar Nuth, Christopher Van Pelt, Ward Berthier, Etienne Kohler, Jack Altena, Bas 2019-01-23T11:38:38Z http://hdl.handle.net/10852/67907 http://urn.nb.no/URN:NBN:no-71072 https://doi.org/10.1017/jog.2018.98 EN eng International Glaciological Society http://urn.nb.no/URN:NBN:no-71072 Deschamps-Berger, Cesar Nuth, Christopher Van Pelt, Ward Berthier, Etienne Kohler, Jack Altena, Bas . Closing the mass budget of a tidewater glacier, an example of Kronebreen, Svalbard. Journal of Glaciology. 2019 http://hdl.handle.net/10852/67907 1663607 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal of Glaciology&rft.volume=&rft.spage=&rft.date=2019 Journal of Glaciology 65 249 doi:10.1017/jog.2018.98 URN:NBN:no-71072 Fulltext https://www.duo.uio.no/bitstream/handle/10852/67907/4/closing_the_mass_budget_of_a_tidewater_glacier_the_example_of_kronebreen_svalbard.pdf Attribution-NonCommercial-ShareAlike 4.0 International https://creativecommons.org/licenses/by-nc-sa/4.0/ CC-BY-NC-SA 0022-1430 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2019 ftoslouniv https://doi.org/10.1017/jog.2018.98 2020-06-21T08:52:54Z 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 Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Svalbard Kronebreen ENVELOPE(13.333,13.333,78.833,78.833) Journal of Glaciology 65 249 136 148 |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
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 |
Deschamps-Berger, Cesar Nuth, Christopher Van Pelt, Ward Berthier, Etienne Kohler, Jack Altena, Bas |
spellingShingle |
Deschamps-Berger, Cesar Nuth, Christopher Van Pelt, Ward Berthier, Etienne Kohler, Jack Altena, Bas Closing the mass budget of a tidewater glacier, an example of Kronebreen, Svalbard |
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, an example of Kronebreen, Svalbard |
title_short |
Closing the mass budget of a tidewater glacier, an example of Kronebreen, Svalbard |
title_full |
Closing the mass budget of a tidewater glacier, an example of Kronebreen, Svalbard |
title_fullStr |
Closing the mass budget of a tidewater glacier, an example of Kronebreen, Svalbard |
title_full_unstemmed |
Closing the mass budget of a tidewater glacier, an example of Kronebreen, Svalbard |
title_sort |
closing the mass budget of a tidewater glacier, an example of kronebreen, svalbard |
publisher |
International Glaciological Society |
publishDate |
2019 |
url |
http://hdl.handle.net/10852/67907 http://urn.nb.no/URN:NBN:no-71072 https://doi.org/10.1017/jog.2018.98 |
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 |
0022-1430 |
op_relation |
http://urn.nb.no/URN:NBN:no-71072 Deschamps-Berger, Cesar Nuth, Christopher Van Pelt, Ward Berthier, Etienne Kohler, Jack Altena, Bas . Closing the mass budget of a tidewater glacier, an example of Kronebreen, Svalbard. Journal of Glaciology. 2019 http://hdl.handle.net/10852/67907 1663607 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal of Glaciology&rft.volume=&rft.spage=&rft.date=2019 Journal of Glaciology 65 249 doi:10.1017/jog.2018.98 URN:NBN:no-71072 Fulltext https://www.duo.uio.no/bitstream/handle/10852/67907/4/closing_the_mass_budget_of_a_tidewater_glacier_the_example_of_kronebreen_svalbard.pdf |
op_rights |
Attribution-NonCommercial-ShareAlike 4.0 International https://creativecommons.org/licenses/by-nc-sa/4.0/ |
op_rightsnorm |
CC-BY-NC-SA |
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_ |
1766010124980191232 |