Structural evolution during a surge in the Paulabreen glacier system, Svalbard
We assess the evolution of glaciological structures during the 2003–05 surge in the Paulabreen glacier system, Svalbard. Glaciological structures on the glacier surface were mapped using aerial photographs captured in the early stages of the surge (2003) and 5 years after surge termination (2011). T...
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Cambridge University Press
2023
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Online Access: | https://doi.org/10.1017/jog.2022.53 https://doaj.org/article/c14c5f54a9794ee8b15c04d3043555d1 |
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ftdoajarticles:oai:doaj.org/article:c14c5f54a9794ee8b15c04d3043555d1 2023-05-15T15:07:19+02:00 Structural evolution during a surge in the Paulabreen glacier system, Svalbard Harold Lovell Edward J. Fleming 2023-02-01T00:00:00Z https://doi.org/10.1017/jog.2022.53 https://doaj.org/article/c14c5f54a9794ee8b15c04d3043555d1 EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143022000533/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2022.53 0022-1430 1727-5652 https://doaj.org/article/c14c5f54a9794ee8b15c04d3043555d1 Journal of Glaciology, Vol 69, Pp 141-152 (2023) Arctic glaciology glacier surge structural glaciology Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2023 ftdoajarticles https://doi.org/10.1017/jog.2022.53 2023-03-12T01:30:54Z We assess the evolution of glaciological structures during the 2003–05 surge in the Paulabreen glacier system, Svalbard. Glaciological structures on the glacier surface were mapped using aerial photographs captured in the early stages of the surge (2003) and 5 years after surge termination (2011). Three-dimensional measurements of glaciological structures were collected at the tidewater front in 2013. These datasets document the physical changes during (1) the late quiescent phase; (2) the early phase of the surge as the surge front propagated down Skobreen and advanced into Paulabreen and (3) the final stages of the surge following the surge front reaching the glacier terminus. Crevasse patterns and clusters of arcuate shear planes record zones of compressive and extensional flow associated with the downglacier progression of the surge front. The transfer of surging ice from Skobreen into Paulabreen caused lateral displacement of the medial moraines to the northeast. At the ice front, this movement tilted glaciological structures in the same direction. Structures at the southwest margin record strike–slip faulting and the elevation of debris into the ice in a zone of compression and transpression. We summarise these observations in a schematic reconstruction of structural evolution during the surge. Article in Journal/Newspaper Arctic glacier Journal of Glaciology Svalbard Tidewater Directory of Open Access Journals: DOAJ Articles Arctic Paulabreen ENVELOPE(17.227,17.227,77.755,77.755) Svalbard Journal of Glaciology 69 273 141 152 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic glaciology glacier surge structural glaciology Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
Arctic glaciology glacier surge structural glaciology Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Harold Lovell Edward J. Fleming Structural evolution during a surge in the Paulabreen glacier system, Svalbard |
topic_facet |
Arctic glaciology glacier surge structural glaciology Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
We assess the evolution of glaciological structures during the 2003–05 surge in the Paulabreen glacier system, Svalbard. Glaciological structures on the glacier surface were mapped using aerial photographs captured in the early stages of the surge (2003) and 5 years after surge termination (2011). Three-dimensional measurements of glaciological structures were collected at the tidewater front in 2013. These datasets document the physical changes during (1) the late quiescent phase; (2) the early phase of the surge as the surge front propagated down Skobreen and advanced into Paulabreen and (3) the final stages of the surge following the surge front reaching the glacier terminus. Crevasse patterns and clusters of arcuate shear planes record zones of compressive and extensional flow associated with the downglacier progression of the surge front. The transfer of surging ice from Skobreen into Paulabreen caused lateral displacement of the medial moraines to the northeast. At the ice front, this movement tilted glaciological structures in the same direction. Structures at the southwest margin record strike–slip faulting and the elevation of debris into the ice in a zone of compression and transpression. We summarise these observations in a schematic reconstruction of structural evolution during the surge. |
format |
Article in Journal/Newspaper |
author |
Harold Lovell Edward J. Fleming |
author_facet |
Harold Lovell Edward J. Fleming |
author_sort |
Harold Lovell |
title |
Structural evolution during a surge in the Paulabreen glacier system, Svalbard |
title_short |
Structural evolution during a surge in the Paulabreen glacier system, Svalbard |
title_full |
Structural evolution during a surge in the Paulabreen glacier system, Svalbard |
title_fullStr |
Structural evolution during a surge in the Paulabreen glacier system, Svalbard |
title_full_unstemmed |
Structural evolution during a surge in the Paulabreen glacier system, Svalbard |
title_sort |
structural evolution during a surge in the paulabreen glacier system, svalbard |
publisher |
Cambridge University Press |
publishDate |
2023 |
url |
https://doi.org/10.1017/jog.2022.53 https://doaj.org/article/c14c5f54a9794ee8b15c04d3043555d1 |
long_lat |
ENVELOPE(17.227,17.227,77.755,77.755) |
geographic |
Arctic Paulabreen Svalbard |
geographic_facet |
Arctic Paulabreen Svalbard |
genre |
Arctic glacier Journal of Glaciology Svalbard Tidewater |
genre_facet |
Arctic glacier Journal of Glaciology Svalbard Tidewater |
op_source |
Journal of Glaciology, Vol 69, Pp 141-152 (2023) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143022000533/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2022.53 0022-1430 1727-5652 https://doaj.org/article/c14c5f54a9794ee8b15c04d3043555d1 |
op_doi |
https://doi.org/10.1017/jog.2022.53 |
container_title |
Journal of Glaciology |
container_volume |
69 |
container_issue |
273 |
container_start_page |
141 |
op_container_end_page |
152 |
_version_ |
1766338852136419328 |