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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Uppsala universitet, Luft-, vatten- och landskapslära
2019
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-379123 https://doi.org/10.1017/jog.2018.98 |
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ftuppsalauniv:oai:DiVA.org:uu-379123 2023-05-15T16:22:09+02:00 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 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-379123 https://doi.org/10.1017/jog.2018.98 eng eng Uppsala universitet, Luft-, vatten- och landskapslära Univ Oslo, Dept Geosci, POB 1047, N-0316 Oslo, Norway;Univ Toulouse, LEGOS, CNES, CNRS,IRD,UPS, F-31400 Toulouse, France;UPS, CNRS, CESBIO, IRD,CNES,INRS, F-31400 Toulouse, France Univ Oslo, Dept Geosci, POB 1047, N-0316 Oslo, Norway Univ Toulouse, LEGOS, CNES, CNRS,IRD,UPS, F-31400 Toulouse, France Norwegian Polar Res Inst, Polar Environm Ctr, NO-9296 Tromso, Norway Journal of Glaciology, 0022-1430, 2019, 65:249, s. 136-148 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-379123 doi:10.1017/jog.2018.98 ISI:000462017000010 info:eu-repo/semantics/openAccess glaciological instruments and methods glacier mass balance remote sensing Physical Geography Naturgeografi Article in journal info:eu-repo/semantics/article text 2019 ftuppsalauniv https://doi.org/10.1017/jog.2018.98 2023-02-23T21:52:13Z 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 Uppsala University: Publications (DiVA) Kronebreen ENVELOPE(13.333,13.333,78.833,78.833) Svalbard Journal of Glaciology 65 249 136 148 |
institution |
Open Polar |
collection |
Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
glaciological instruments and methods glacier mass balance remote sensing Physical Geography Naturgeografi |
spellingShingle |
glaciological instruments and methods glacier mass balance remote sensing Physical Geography Naturgeografi 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 |
glaciological instruments and methods glacier mass balance remote sensing Physical Geography Naturgeografi |
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 |
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 |
Uppsala universitet, Luft-, vatten- och landskapslära |
publishDate |
2019 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-379123 https://doi.org/10.1017/jog.2018.98 |
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_relation |
Journal of Glaciology, 0022-1430, 2019, 65:249, s. 136-148 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-379123 doi:10.1017/jog.2018.98 ISI:000462017000010 |
op_rights |
info:eu-repo/semantics/openAccess |
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_ |
1766010124222070784 |