Comparison of geodetic and glaciological mass budgets for White Glacier, Axel Heiberg Island, Canada
This study presents the first reanalysis of a long-term glacier mass-balance record in the Canadian Arctic. The reanalysis is accomplished through comparison of the 1960–2014 glaciological mass-balance record of White Glacier, Axel Heiberg Island, Nunavut, with a geodetically derived mass change ove...
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International Glaciological Society
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ftunivzuerich:oai:www.zora.uzh.ch:127491 2024-09-15T17:56:51+00:00 Comparison of geodetic and glaciological mass budgets for White Glacier, Axel Heiberg Island, Canada Thomson, Laura I Zemp, Michael Copland, Luke Cogley, J Graham Ecclestone, Miles A 2016 application/pdf https://www.zora.uzh.ch/id/eprint/127491/ https://www.zora.uzh.ch/id/eprint/127491/1/2016_Thomson_etal_JoG_2016.pdf https://doi.org/10.5167/uzh-127491 https://doi.org/10.1017/jog.2016.112 eng eng International Glaciological Society https://www.zora.uzh.ch/id/eprint/127491/1/2016_Thomson_etal_JoG_2016.pdf doi:10.5167/uzh-127491 doi:10.1017/jog.2016.112 urn:issn:0022-1430 info:eu-repo/semantics/openAccess Thomson, Laura I; Zemp, Michael; Copland, Luke; Cogley, J Graham; Ecclestone, Miles A (2016). Comparison of geodetic and glaciological mass budgets for White Glacier, Axel Heiberg Island, Canada. Journal of Glaciology:online. Institute of Geography 910 Geography & travel Journal Article PeerReviewed info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2016 ftunivzuerich https://doi.org/10.5167/uzh-12749110.1017/jog.2016.112 2024-08-21T00:19:55Z This study presents the first reanalysis of a long-term glacier mass-balance record in the Canadian Arctic. The reanalysis is accomplished through comparison of the 1960–2014 glaciological mass-balance record of White Glacier, Axel Heiberg Island, Nunavut, with a geodetically derived mass change over the same period. The corrections applied to homogenize the two datasets, including adjusting for changes in hypsometry over the period of record and the generic differences between methods, are discussed along with the associated systematic and random errors of the two forms of mass-balance measurement. Statistical comparison of the two datasets reveals that within the error margin there is no significant difference between the average annual glaciological balance (–213 ± 28 mm w.e. a−1) and geodetic balance (–178 ± 16 mm w.e. a−1) at White Glacier over the 54 year record. The validity of this result, and the assumptions made in implementing the glaciological method, are critically assessed. Article in Journal/Newspaper Axel Heiberg Island glacier* Nunavut University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
institution |
Open Polar |
collection |
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
op_collection_id |
ftunivzuerich |
language |
English |
topic |
Institute of Geography 910 Geography & travel |
spellingShingle |
Institute of Geography 910 Geography & travel Thomson, Laura I Zemp, Michael Copland, Luke Cogley, J Graham Ecclestone, Miles A Comparison of geodetic and glaciological mass budgets for White Glacier, Axel Heiberg Island, Canada |
topic_facet |
Institute of Geography 910 Geography & travel |
description |
This study presents the first reanalysis of a long-term glacier mass-balance record in the Canadian Arctic. The reanalysis is accomplished through comparison of the 1960–2014 glaciological mass-balance record of White Glacier, Axel Heiberg Island, Nunavut, with a geodetically derived mass change over the same period. The corrections applied to homogenize the two datasets, including adjusting for changes in hypsometry over the period of record and the generic differences between methods, are discussed along with the associated systematic and random errors of the two forms of mass-balance measurement. Statistical comparison of the two datasets reveals that within the error margin there is no significant difference between the average annual glaciological balance (–213 ± 28 mm w.e. a−1) and geodetic balance (–178 ± 16 mm w.e. a−1) at White Glacier over the 54 year record. The validity of this result, and the assumptions made in implementing the glaciological method, are critically assessed. |
format |
Article in Journal/Newspaper |
author |
Thomson, Laura I Zemp, Michael Copland, Luke Cogley, J Graham Ecclestone, Miles A |
author_facet |
Thomson, Laura I Zemp, Michael Copland, Luke Cogley, J Graham Ecclestone, Miles A |
author_sort |
Thomson, Laura I |
title |
Comparison of geodetic and glaciological mass budgets for White Glacier, Axel Heiberg Island, Canada |
title_short |
Comparison of geodetic and glaciological mass budgets for White Glacier, Axel Heiberg Island, Canada |
title_full |
Comparison of geodetic and glaciological mass budgets for White Glacier, Axel Heiberg Island, Canada |
title_fullStr |
Comparison of geodetic and glaciological mass budgets for White Glacier, Axel Heiberg Island, Canada |
title_full_unstemmed |
Comparison of geodetic and glaciological mass budgets for White Glacier, Axel Heiberg Island, Canada |
title_sort |
comparison of geodetic and glaciological mass budgets for white glacier, axel heiberg island, canada |
publisher |
International Glaciological Society |
publishDate |
2016 |
url |
https://www.zora.uzh.ch/id/eprint/127491/ https://www.zora.uzh.ch/id/eprint/127491/1/2016_Thomson_etal_JoG_2016.pdf https://doi.org/10.5167/uzh-127491 https://doi.org/10.1017/jog.2016.112 |
genre |
Axel Heiberg Island glacier* Nunavut |
genre_facet |
Axel Heiberg Island glacier* Nunavut |
op_source |
Thomson, Laura I; Zemp, Michael; Copland, Luke; Cogley, J Graham; Ecclestone, Miles A (2016). Comparison of geodetic and glaciological mass budgets for White Glacier, Axel Heiberg Island, Canada. Journal of Glaciology:online. |
op_relation |
https://www.zora.uzh.ch/id/eprint/127491/1/2016_Thomson_etal_JoG_2016.pdf doi:10.5167/uzh-127491 doi:10.1017/jog.2016.112 urn:issn:0022-1430 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5167/uzh-12749110.1017/jog.2016.112 |
_version_ |
1810433036145131520 |