Geomorphological and historical records of the surge-type behaviour of Hansbreen (Svalbard)
This paper presents geomorphological and historical records of the surge-type behaviour of Hansbreen, one of the most studied tidewater glaciers in Svalbard. The surge-type behaviour of the glacier has not been considered before due to the lack of evidence of this phenomenon. We integrate geomorphol...
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Cambridge University Press
2024-01-01
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| Series: | Annals of Glaciology |
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| Online Access: | https://www.cambridge.org/core/product/identifier/S0260305524000326/type/journal_article |
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| author | Aleksandra Osika Jacek Jania |
| author_facet | Aleksandra Osika Jacek Jania |
| author_sort | Aleksandra Osika |
| collection | DOAJ |
| description | This paper presents geomorphological and historical records of the surge-type behaviour of Hansbreen, one of the most studied tidewater glaciers in Svalbard. The surge-type behaviour of the glacier has not been considered before due to the lack of evidence of this phenomenon. We integrate geomorphological mapping of the terrestrial and submarine forefields with historical data from the 19th and 20th centuries to reconstruct the glacier dynamics and identify the possible timing of surging. Landform assemblages are representative of the surging glacier landsystem, including crevasse-squeeze ridges (CSRs) and submarine streamlined glacial lineations. Abundant CSRs in the outer part of the terrestrial forefield were also documented in the 1980s, but most have been obliterated since then. We suggest the identified surge landsystem was produced during a surge of Hansbreen detected from photographs taken during the Austro-Hungarian expedition in 1872. Historical photogrammetric photos from the Norwegian expedition in 1918 revealed surge-diagnostic features in the glacier surface, including a folded medial moraine and a dense, complex network of crevasses. A potential next surge remains questionable in the following decades due to the low-lying accumulation area of the main stream hindering the mass build-up, but potential surges of the tributary glaciers should not be excluded. |
| format | Article |
| id | doaj-art-cac252ca3a9444acb74d5d1271f14440 |
| institution | DOAJ |
| issn | 0260-3055 1727-5644 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Annals of Glaciology |
| spelling | doaj-art-cac252ca3a9444acb74d5d1271f144402025-08-20T03:11:31ZengCambridge University PressAnnals of Glaciology0260-30551727-56442024-01-016510.1017/aog.2024.32Geomorphological and historical records of the surge-type behaviour of Hansbreen (Svalbard)Aleksandra Osika0https://orcid.org/0000-0002-4686-7203Jacek Jania1Faculty of Natural Sciences, University of Silesia, Institute of Earth Sciences, Bedzinska 60, 41-200 Sosnowiec, PolandFaculty of Natural Sciences, University of Silesia, Institute of Earth Sciences, Bedzinska 60, 41-200 Sosnowiec, PolandThis paper presents geomorphological and historical records of the surge-type behaviour of Hansbreen, one of the most studied tidewater glaciers in Svalbard. The surge-type behaviour of the glacier has not been considered before due to the lack of evidence of this phenomenon. We integrate geomorphological mapping of the terrestrial and submarine forefields with historical data from the 19th and 20th centuries to reconstruct the glacier dynamics and identify the possible timing of surging. Landform assemblages are representative of the surging glacier landsystem, including crevasse-squeeze ridges (CSRs) and submarine streamlined glacial lineations. Abundant CSRs in the outer part of the terrestrial forefield were also documented in the 1980s, but most have been obliterated since then. We suggest the identified surge landsystem was produced during a surge of Hansbreen detected from photographs taken during the Austro-Hungarian expedition in 1872. Historical photogrammetric photos from the Norwegian expedition in 1918 revealed surge-diagnostic features in the glacier surface, including a folded medial moraine and a dense, complex network of crevasses. A potential next surge remains questionable in the following decades due to the low-lying accumulation area of the main stream hindering the mass build-up, but potential surges of the tributary glaciers should not be excluded.https://www.cambridge.org/core/product/identifier/S0260305524000326/type/journal_articleArctic glaciologyglacial geomorphologyglacier surges |
| spellingShingle | Aleksandra Osika Jacek Jania Geomorphological and historical records of the surge-type behaviour of Hansbreen (Svalbard) Annals of Glaciology Arctic glaciology glacial geomorphology glacier surges |
| title | Geomorphological and historical records of the surge-type behaviour of Hansbreen (Svalbard) |
| title_full | Geomorphological and historical records of the surge-type behaviour of Hansbreen (Svalbard) |
| title_fullStr | Geomorphological and historical records of the surge-type behaviour of Hansbreen (Svalbard) |
| title_full_unstemmed | Geomorphological and historical records of the surge-type behaviour of Hansbreen (Svalbard) |
| title_short | Geomorphological and historical records of the surge-type behaviour of Hansbreen (Svalbard) |
| title_sort | geomorphological and historical records of the surge type behaviour of hansbreen svalbard |
| topic | Arctic glaciology glacial geomorphology glacier surges |
| url | https://www.cambridge.org/core/product/identifier/S0260305524000326/type/journal_article |
| work_keys_str_mv | AT aleksandraosika geomorphologicalandhistoricalrecordsofthesurgetypebehaviourofhansbreensvalbard AT jacekjania geomorphologicalandhistoricalrecordsofthesurgetypebehaviourofhansbreensvalbard |