Deglaciation rate on southern and western Spitsbergen in the conditions of Arctic amplification
This paper reports on a morphometric analysis of land-terminating glaciers on southern and western Spitsbergen in the years 1936–2014. An attempt was made to estimate the deglaciation rate and the scale of its acceleration in the 21st century in the conditions of Arctic amplification. Satellite scen...
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Polish Academy of Sciences
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ftdoajarticles:oai:doaj.org/article:251573b464794699b517e135df0cb44d 2023-05-15T14:54:43+02:00 Deglaciation rate on southern and western Spitsbergen in the conditions of Arctic amplification Joanna Ewa Szafraniec 2018-03-01T00:00:00Z https://doi.org/10.24425/118739 https://doaj.org/article/251573b464794699b517e135df0cb44d EN eng Polish Academy of Sciences https://journals.pan.pl/Content/103305/PDF/P.Polar%201-18%204-J.Szafraniec.pdf https://doaj.org/toc/0138-0338 https://doaj.org/toc/2081-8262 0138-0338 2081-8262 https://doi.org/10.24425/118739 https://doaj.org/article/251573b464794699b517e135df0cb44d Polish Polar Research, Vol vol. 39, Iss No 1, Pp 77-98 (2018) arctic svalbard recession rate acceleration of deglaciation rate gis Geology QE1-996.5 article 2018 ftdoajarticles https://doi.org/10.24425/118739 2022-12-31T00:46:30Z This paper reports on a morphometric analysis of land-terminating glaciers on southern and western Spitsbergen in the years 1936–2014. An attempt was made to estimate the deglaciation rate and the scale of its acceleration in the 21st century in the conditions of Arctic amplification. Satellite scenes and topographic map sheets were used for the study and were analyzed by means of remote sensing and GIS methods. The study covered 2000–2014 years and concluded that surface recession accelerated on average by a factor of 2.75 compared to the 1936–2000 period, while linear recession was 2.2 times faster. The greatest increase in the deglaciation rate can be observed in the case of glaciers faced to N and W sectors. The deglaciation process is the most advanced in the central part of the island, where small, compact mountain glaciers predominate. In recent years, a slowdown in the deglaciation processes in these glaciers was observed. The studies demonstrate that the deglaciation rate was mainly influenced by the basin relief determining the glacier geometry. The resultant fractal nature of the ice cover makes it highly vulnerable to the disintegration of complex glacial systems into smaller ones due to glacier thinning and the separation of outlets. The acceleration of the deglaciation rate in turn is modified by the climate factor, especially the impact of warming air masses from the N and W sectors where seas are becoming increasingly ice-free and, consequently, have an increasing heat capacity. Article in Journal/Newspaper Arctic glacier Polar Research Svalbard Spitsbergen Directory of Open Access Journals: DOAJ Articles Arctic Svalbard |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
arctic svalbard recession rate acceleration of deglaciation rate gis Geology QE1-996.5 |
spellingShingle |
arctic svalbard recession rate acceleration of deglaciation rate gis Geology QE1-996.5 Joanna Ewa Szafraniec Deglaciation rate on southern and western Spitsbergen in the conditions of Arctic amplification |
topic_facet |
arctic svalbard recession rate acceleration of deglaciation rate gis Geology QE1-996.5 |
description |
This paper reports on a morphometric analysis of land-terminating glaciers on southern and western Spitsbergen in the years 1936–2014. An attempt was made to estimate the deglaciation rate and the scale of its acceleration in the 21st century in the conditions of Arctic amplification. Satellite scenes and topographic map sheets were used for the study and were analyzed by means of remote sensing and GIS methods. The study covered 2000–2014 years and concluded that surface recession accelerated on average by a factor of 2.75 compared to the 1936–2000 period, while linear recession was 2.2 times faster. The greatest increase in the deglaciation rate can be observed in the case of glaciers faced to N and W sectors. The deglaciation process is the most advanced in the central part of the island, where small, compact mountain glaciers predominate. In recent years, a slowdown in the deglaciation processes in these glaciers was observed. The studies demonstrate that the deglaciation rate was mainly influenced by the basin relief determining the glacier geometry. The resultant fractal nature of the ice cover makes it highly vulnerable to the disintegration of complex glacial systems into smaller ones due to glacier thinning and the separation of outlets. The acceleration of the deglaciation rate in turn is modified by the climate factor, especially the impact of warming air masses from the N and W sectors where seas are becoming increasingly ice-free and, consequently, have an increasing heat capacity. |
format |
Article in Journal/Newspaper |
author |
Joanna Ewa Szafraniec |
author_facet |
Joanna Ewa Szafraniec |
author_sort |
Joanna Ewa Szafraniec |
title |
Deglaciation rate on southern and western Spitsbergen in the conditions of Arctic amplification |
title_short |
Deglaciation rate on southern and western Spitsbergen in the conditions of Arctic amplification |
title_full |
Deglaciation rate on southern and western Spitsbergen in the conditions of Arctic amplification |
title_fullStr |
Deglaciation rate on southern and western Spitsbergen in the conditions of Arctic amplification |
title_full_unstemmed |
Deglaciation rate on southern and western Spitsbergen in the conditions of Arctic amplification |
title_sort |
deglaciation rate on southern and western spitsbergen in the conditions of arctic amplification |
publisher |
Polish Academy of Sciences |
publishDate |
2018 |
url |
https://doi.org/10.24425/118739 https://doaj.org/article/251573b464794699b517e135df0cb44d |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic glacier Polar Research Svalbard Spitsbergen |
genre_facet |
Arctic glacier Polar Research Svalbard Spitsbergen |
op_source |
Polish Polar Research, Vol vol. 39, Iss No 1, Pp 77-98 (2018) |
op_relation |
https://journals.pan.pl/Content/103305/PDF/P.Polar%201-18%204-J.Szafraniec.pdf https://doaj.org/toc/0138-0338 https://doaj.org/toc/2081-8262 0138-0338 2081-8262 https://doi.org/10.24425/118739 https://doaj.org/article/251573b464794699b517e135df0cb44d |
op_doi |
https://doi.org/10.24425/118739 |
_version_ |
1766326472907161600 |