Slope processes in the High Arctic: a 30‐year‐long record from Spitsbergen
Ten monitoring sites were established in 1986 near the Scottbreen and Renardbreen glaciers (Bellsund, Spitsbergen) in order to determine the rates of gelifluction on raised marine terraces and on talus cones, accumulation on talus cones, and movement of the protalus rampart. The measurements were pe...
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crwiley:10.1111/bor.12393 2024-06-02T08:01:51+00:00 Slope processes in the High Arctic: a 30‐year‐long record from Spitsbergen Dzierżek, Jan Szymanek, Marcin Nitychoruk, Jerzy 2019 http://dx.doi.org/10.1111/bor.12393 https://onlinelibrary.wiley.com/doi/pdf/10.1111/bor.12393 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/bor.12393 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Boreas volume 48, issue 4, page 856-866 ISSN 0300-9483 1502-3885 journal-article 2019 crwiley https://doi.org/10.1111/bor.12393 2024-05-03T11:33:00Z Ten monitoring sites were established in 1986 near the Scottbreen and Renardbreen glaciers (Bellsund, Spitsbergen) in order to determine the rates of gelifluction on raised marine terraces and on talus cones, accumulation on talus cones, and movement of the protalus rampart. The measurements were performed in 1987, 2007 and 2016. The results obtained revealed a very slow rate of changes on the surface of the analysed area. During 30 years, only one out of 84 points where the gelifluction rate was measured was displaced by 15 cm down‐slope. The maximal annual and average gelifluction rates were calculated at 0.5 cm and 0.18 cm a −1 , respectively. Several measurement points did not change their position over the observation period. As shown by the observations, the gelifluction rate largely does not depend on slope inclination. Studies of talus cones allowed the level of cone increment to be determined as 314.3 kg of scree per square metre. Analysis of factors influencing the rate of mass movement allowed for correlation of the small‐scale gelifluction movement at the analysed sites with the general trends of climate warming. In this part of the Arctic, these trends are manifested by soil desiccation. It appears that slope processes depend on very local topoclimatic factors. Analysis of the obtained data with regard to palaeogeographical and climatic investigations suggests that the ice segregation forms on raised marine terraces developed during the last Holocene cooling, i.e. the Little Ice Age. Article in Journal/Newspaper Arctic Bellsund Spitsbergen Wiley Online Library Arctic Bellsund ENVELOPE(14.226,14.226,77.662,77.662) Scottbreen ENVELOPE(14.394,14.394,77.549,77.549) Renardbreen ENVELOPE(14.424,14.424,77.518,77.518) Boreas 48 4 856 866 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Ten monitoring sites were established in 1986 near the Scottbreen and Renardbreen glaciers (Bellsund, Spitsbergen) in order to determine the rates of gelifluction on raised marine terraces and on talus cones, accumulation on talus cones, and movement of the protalus rampart. The measurements were performed in 1987, 2007 and 2016. The results obtained revealed a very slow rate of changes on the surface of the analysed area. During 30 years, only one out of 84 points where the gelifluction rate was measured was displaced by 15 cm down‐slope. The maximal annual and average gelifluction rates were calculated at 0.5 cm and 0.18 cm a −1 , respectively. Several measurement points did not change their position over the observation period. As shown by the observations, the gelifluction rate largely does not depend on slope inclination. Studies of talus cones allowed the level of cone increment to be determined as 314.3 kg of scree per square metre. Analysis of factors influencing the rate of mass movement allowed for correlation of the small‐scale gelifluction movement at the analysed sites with the general trends of climate warming. In this part of the Arctic, these trends are manifested by soil desiccation. It appears that slope processes depend on very local topoclimatic factors. Analysis of the obtained data with regard to palaeogeographical and climatic investigations suggests that the ice segregation forms on raised marine terraces developed during the last Holocene cooling, i.e. the Little Ice Age. |
format |
Article in Journal/Newspaper |
author |
Dzierżek, Jan Szymanek, Marcin Nitychoruk, Jerzy |
spellingShingle |
Dzierżek, Jan Szymanek, Marcin Nitychoruk, Jerzy Slope processes in the High Arctic: a 30‐year‐long record from Spitsbergen |
author_facet |
Dzierżek, Jan Szymanek, Marcin Nitychoruk, Jerzy |
author_sort |
Dzierżek, Jan |
title |
Slope processes in the High Arctic: a 30‐year‐long record from Spitsbergen |
title_short |
Slope processes in the High Arctic: a 30‐year‐long record from Spitsbergen |
title_full |
Slope processes in the High Arctic: a 30‐year‐long record from Spitsbergen |
title_fullStr |
Slope processes in the High Arctic: a 30‐year‐long record from Spitsbergen |
title_full_unstemmed |
Slope processes in the High Arctic: a 30‐year‐long record from Spitsbergen |
title_sort |
slope processes in the high arctic: a 30‐year‐long record from spitsbergen |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1111/bor.12393 https://onlinelibrary.wiley.com/doi/pdf/10.1111/bor.12393 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/bor.12393 |
long_lat |
ENVELOPE(14.226,14.226,77.662,77.662) ENVELOPE(14.394,14.394,77.549,77.549) ENVELOPE(14.424,14.424,77.518,77.518) |
geographic |
Arctic Bellsund Scottbreen Renardbreen |
geographic_facet |
Arctic Bellsund Scottbreen Renardbreen |
genre |
Arctic Bellsund Spitsbergen |
genre_facet |
Arctic Bellsund Spitsbergen |
op_source |
Boreas volume 48, issue 4, page 856-866 ISSN 0300-9483 1502-3885 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/bor.12393 |
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Boreas |
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48 |
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4 |
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856 |
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866 |
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1800746344387706880 |