Ice-Cliff Morphometry in Identifying the Surge Phenomenon of Tidewater Glaciers (Spitsbergen, Svalbard)
In this study, 110 tidewater glaciers from Spitsbergen were studied to characterize the frontal zone using morphometric indicators. In addition, their time variability was also determined based on features of the active phase of glacier surges. Landsat satellite imagery and topographic maps were use...
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ftdoajarticles:oai:doaj.org/article:0bf346015b994aa6b5163d3f2196183a 2023-05-15T16:22:11+02:00 Ice-Cliff Morphometry in Identifying the Surge Phenomenon of Tidewater Glaciers (Spitsbergen, Svalbard) Joanna Ewa Szafraniec 2020-08-01T00:00:00Z https://doi.org/10.3390/geosciences10090328 https://doaj.org/article/0bf346015b994aa6b5163d3f2196183a EN eng MDPI AG https://www.mdpi.com/2076-3263/10/9/328 https://doaj.org/toc/2076-3263 doi:10.3390/geosciences10090328 2076-3263 https://doaj.org/article/0bf346015b994aa6b5163d3f2196183a Geosciences, Vol 10, Iss 328, p 328 (2020) ice-cliff morphometry “glacier buttress system” glacier surge Spitsbergen tidewater glaciers Geology QE1-996.5 article 2020 ftdoajarticles https://doi.org/10.3390/geosciences10090328 2022-12-31T06:13:50Z In this study, 110 tidewater glaciers from Spitsbergen were studied to characterize the frontal zone using morphometric indicators. In addition, their time variability was also determined based on features of the active phase of glacier surges. Landsat satellite imagery and topographic maps were used for digitalization of the ice-cliffs line. In recent years (2014–2017) all the glaciers studied can be thus classified as: stagnant (33%), retreating and deeply recessing (33%), starting to move forward/fulfilling the frontal zone (23%), and surging (11%). Indicators of the glacier frontal zone ( CfD and CfE ) allow to identify the beginning and the end of the active phase through changes in their values by ca. 0.05–0.06 by the year and get even bigger for large glaciers as opposed to typical interannual differences within the limits of ±0.01 to 0.02. The active phase lasted an average of 6–10 years. The presence of a “glacier buttress system” and the “pointed arch” structure of the ice-cliff seem to be an important factor regulating the tidewater glacier stability. Article in Journal/Newspaper glacier Svalbard Tidewater Spitsbergen Directory of Open Access Journals: DOAJ Articles Buttress ENVELOPE(-57.083,-57.083,-63.550,-63.550) Svalbard Geosciences 10 9 328 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
ice-cliff morphometry “glacier buttress system” glacier surge Spitsbergen tidewater glaciers Geology QE1-996.5 |
spellingShingle |
ice-cliff morphometry “glacier buttress system” glacier surge Spitsbergen tidewater glaciers Geology QE1-996.5 Joanna Ewa Szafraniec Ice-Cliff Morphometry in Identifying the Surge Phenomenon of Tidewater Glaciers (Spitsbergen, Svalbard) |
topic_facet |
ice-cliff morphometry “glacier buttress system” glacier surge Spitsbergen tidewater glaciers Geology QE1-996.5 |
description |
In this study, 110 tidewater glaciers from Spitsbergen were studied to characterize the frontal zone using morphometric indicators. In addition, their time variability was also determined based on features of the active phase of glacier surges. Landsat satellite imagery and topographic maps were used for digitalization of the ice-cliffs line. In recent years (2014–2017) all the glaciers studied can be thus classified as: stagnant (33%), retreating and deeply recessing (33%), starting to move forward/fulfilling the frontal zone (23%), and surging (11%). Indicators of the glacier frontal zone ( CfD and CfE ) allow to identify the beginning and the end of the active phase through changes in their values by ca. 0.05–0.06 by the year and get even bigger for large glaciers as opposed to typical interannual differences within the limits of ±0.01 to 0.02. The active phase lasted an average of 6–10 years. The presence of a “glacier buttress system” and the “pointed arch” structure of the ice-cliff seem to be an important factor regulating the tidewater glacier stability. |
format |
Article in Journal/Newspaper |
author |
Joanna Ewa Szafraniec |
author_facet |
Joanna Ewa Szafraniec |
author_sort |
Joanna Ewa Szafraniec |
title |
Ice-Cliff Morphometry in Identifying the Surge Phenomenon of Tidewater Glaciers (Spitsbergen, Svalbard) |
title_short |
Ice-Cliff Morphometry in Identifying the Surge Phenomenon of Tidewater Glaciers (Spitsbergen, Svalbard) |
title_full |
Ice-Cliff Morphometry in Identifying the Surge Phenomenon of Tidewater Glaciers (Spitsbergen, Svalbard) |
title_fullStr |
Ice-Cliff Morphometry in Identifying the Surge Phenomenon of Tidewater Glaciers (Spitsbergen, Svalbard) |
title_full_unstemmed |
Ice-Cliff Morphometry in Identifying the Surge Phenomenon of Tidewater Glaciers (Spitsbergen, Svalbard) |
title_sort |
ice-cliff morphometry in identifying the surge phenomenon of tidewater glaciers (spitsbergen, svalbard) |
publisher |
MDPI AG |
publishDate |
2020 |
url |
https://doi.org/10.3390/geosciences10090328 https://doaj.org/article/0bf346015b994aa6b5163d3f2196183a |
long_lat |
ENVELOPE(-57.083,-57.083,-63.550,-63.550) |
geographic |
Buttress Svalbard |
geographic_facet |
Buttress Svalbard |
genre |
glacier Svalbard Tidewater Spitsbergen |
genre_facet |
glacier Svalbard Tidewater Spitsbergen |
op_source |
Geosciences, Vol 10, Iss 328, p 328 (2020) |
op_relation |
https://www.mdpi.com/2076-3263/10/9/328 https://doaj.org/toc/2076-3263 doi:10.3390/geosciences10090328 2076-3263 https://doaj.org/article/0bf346015b994aa6b5163d3f2196183a |
op_doi |
https://doi.org/10.3390/geosciences10090328 |
container_title |
Geosciences |
container_volume |
10 |
container_issue |
9 |
container_start_page |
328 |
_version_ |
1766010152595488768 |