Elevation and volume changes of seven Dickson Land glaciers, Svalbard, 1960-1990-2009
Melting Svalbard glaciers have been recognized as an early indicator of climate change. Large parts of Svalbard remain insufficiently investigated, including Dickson Land, in the quasi-continental interior of Svalbard. In this study, elevation and volume changes of seven glaciers located in the Pyra...
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ftjpolarres:oai:journals.openacademia.net:article/3091 2024-09-09T19:37:58+00:00 Elevation and volume changes of seven Dickson Land glaciers, Svalbard, 1960-1990-2009 Malecki, Jakub 2013-10-08 application/pdf text/html application/epub+zip text/plain https://polarresearch.net/index.php/polar/article/view/3091 https://doi.org/10.3402/polar.v32i0.18400 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/3091/pdf_1 https://polarresearch.net/index.php/polar/article/view/3091/html https://polarresearch.net/index.php/polar/article/view/3091/epub https://polarresearch.net/index.php/polar/article/view/3091/xml https://polarresearch.net/index.php/polar/article/view/3091 doi:10.3402/polar.v32i0.18400 Polar Research; Vol 32 (2013) 1751-8369 Central Svalbard Dickson Land Pyramiden glacier thinning geometry changes glacier volume info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2013 ftjpolarres https://doi.org/10.3402/polar.v32i0.18400 2024-06-20T23:33:17Z Melting Svalbard glaciers have been recognized as an early indicator of climate change. Large parts of Svalbard remain insufficiently investigated, including Dickson Land, in the quasi-continental interior of Svalbard. In this study, elevation and volume changes of seven glaciers located in the Pyramiden region are assessed by analysing contour lines from 1960 topographic maps and photogrammetrically derived 1990 and 2009 digital elevation models. Mass loss was documented for all seven glaciers. In the period 1960-1990, their average elevation change rate was -0.49 m a-1, while in the more recent period, 1990-2009, it was more negative at 0.78 m a-1, caused by a significant equilibrium line altitude shift with post-1990 rise in summer temperatures. Large variation in elevation change rates between individual glaciers was found and is attributed mainly to aspect and hypsometry. This highlights the importance of choosing a representative sample when investigating mass balance of whole regions. Evidence of a rapid increase in thinning rates in the upper parts of the studied glaciers, linked to decreasing albedo in former accumulation zones, was also found.Keywords: Central Svalbard; Dickson Land; Pyramiden; glacier thinning; geometry changes; glacier volume(Published: 8 October 2013)Citation: Polar Research 2013, 32, 18400, http://dx.doi.org/10.3402/polar.v32i0.18400 Article in Journal/Newspaper Dickson Land glacier Polar Research Pyramiden Svalbard Polar Research Dickson Land ENVELOPE(16.000,16.000,78.667,78.667) Pyramiden ENVELOPE(-3.817,-3.817,-72.283,-72.283) Svalbard Polar Research 32 1 18400 |
institution |
Open Polar |
collection |
Polar Research |
op_collection_id |
ftjpolarres |
language |
English |
topic |
Central Svalbard Dickson Land Pyramiden glacier thinning geometry changes glacier volume |
spellingShingle |
Central Svalbard Dickson Land Pyramiden glacier thinning geometry changes glacier volume Malecki, Jakub Elevation and volume changes of seven Dickson Land glaciers, Svalbard, 1960-1990-2009 |
topic_facet |
Central Svalbard Dickson Land Pyramiden glacier thinning geometry changes glacier volume |
description |
Melting Svalbard glaciers have been recognized as an early indicator of climate change. Large parts of Svalbard remain insufficiently investigated, including Dickson Land, in the quasi-continental interior of Svalbard. In this study, elevation and volume changes of seven glaciers located in the Pyramiden region are assessed by analysing contour lines from 1960 topographic maps and photogrammetrically derived 1990 and 2009 digital elevation models. Mass loss was documented for all seven glaciers. In the period 1960-1990, their average elevation change rate was -0.49 m a-1, while in the more recent period, 1990-2009, it was more negative at 0.78 m a-1, caused by a significant equilibrium line altitude shift with post-1990 rise in summer temperatures. Large variation in elevation change rates between individual glaciers was found and is attributed mainly to aspect and hypsometry. This highlights the importance of choosing a representative sample when investigating mass balance of whole regions. Evidence of a rapid increase in thinning rates in the upper parts of the studied glaciers, linked to decreasing albedo in former accumulation zones, was also found.Keywords: Central Svalbard; Dickson Land; Pyramiden; glacier thinning; geometry changes; glacier volume(Published: 8 October 2013)Citation: Polar Research 2013, 32, 18400, http://dx.doi.org/10.3402/polar.v32i0.18400 |
format |
Article in Journal/Newspaper |
author |
Malecki, Jakub |
author_facet |
Malecki, Jakub |
author_sort |
Malecki, Jakub |
title |
Elevation and volume changes of seven Dickson Land glaciers, Svalbard, 1960-1990-2009 |
title_short |
Elevation and volume changes of seven Dickson Land glaciers, Svalbard, 1960-1990-2009 |
title_full |
Elevation and volume changes of seven Dickson Land glaciers, Svalbard, 1960-1990-2009 |
title_fullStr |
Elevation and volume changes of seven Dickson Land glaciers, Svalbard, 1960-1990-2009 |
title_full_unstemmed |
Elevation and volume changes of seven Dickson Land glaciers, Svalbard, 1960-1990-2009 |
title_sort |
elevation and volume changes of seven dickson land glaciers, svalbard, 1960-1990-2009 |
publisher |
Norwegian Polar Institute |
publishDate |
2013 |
url |
https://polarresearch.net/index.php/polar/article/view/3091 https://doi.org/10.3402/polar.v32i0.18400 |
long_lat |
ENVELOPE(16.000,16.000,78.667,78.667) ENVELOPE(-3.817,-3.817,-72.283,-72.283) |
geographic |
Dickson Land Pyramiden Svalbard |
geographic_facet |
Dickson Land Pyramiden Svalbard |
genre |
Dickson Land glacier Polar Research Pyramiden Svalbard |
genre_facet |
Dickson Land glacier Polar Research Pyramiden Svalbard |
op_source |
Polar Research; Vol 32 (2013) 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/3091/pdf_1 https://polarresearch.net/index.php/polar/article/view/3091/html https://polarresearch.net/index.php/polar/article/view/3091/epub https://polarresearch.net/index.php/polar/article/view/3091/xml https://polarresearch.net/index.php/polar/article/view/3091 doi:10.3402/polar.v32i0.18400 |
op_doi |
https://doi.org/10.3402/polar.v32i0.18400 |
container_title |
Polar Research |
container_volume |
32 |
container_issue |
1 |
container_start_page |
18400 |
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1809907013248876544 |