Surges in Three Svalbard Glaciers Derived from Historic Sources and Geomorphic Features

Surge-type glaciers in Svalbard are common and have been studied extensively. Whereas active phases of surges were observed and thoroughly investigated recently, data on surges in the past are limited. They are essential, however, to assess the duration of the surge cycle, to determine relation to c...

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Bibliographic Details
Published in:Annals of the American Association of Geographers 2023-09, Vol.ahead-of-print (ahead-of-print), p.1-21
Main Authors: Zagórski, Piotr, Frydrych, Kamila, Jania, Jacek, Błaszczyk, Małgorzata, Sund, Monica, Moskalik, Mateusz
Format: Article
Language:English
Subjects:
aplicación DSAS SIG
archival reconstruction
climate indication
Climatic conditions
Computer applications
DSAS GIS application
DSAS GIS应用
Geomorphology
glaciar de tipo surge desplazamiento rápido
Glacier surges
Glaciers
indicación climática
Morphology
Qualitative analysis
reconstrucción basada en archivos
surge-type glacier
Surges
Svalbard
Synchronism
Synchronization
斯瓦尔巴群岛
档案重建
气候指示
跃动型冰川
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Summary:Surge-type glaciers in Svalbard are common and have been studied extensively. Whereas active phases of surges were observed and thoroughly investigated recently, data on surges in the past are limited. They are essential, however, to assess the duration of the surge cycle, to determine relation to climatic impulses, and to better understand triggering factors and the mechanism of this phenomenon. Three glaciers located in Recherchefjorden, NW Wedel Jarlsberg Land (Svalbard) were studied because they undergo the same regional climate conditions but differ by the basin's size and morphology front types. The article employed different types of data, including geomorphological records, cartographic, graphic, and bibliographic sources. These sources permitted the determination of the location of the termini of glaciers and the quantitative and qualitative description of the rate of changes determined with computer analysis and statistical compilation. Such analysis of other data sources enabled the reconstruction of glaciers' behavior in the past. Glacier surges in the study area correspond with this type of phenomenon in Svalbard. The results obtained showed a certain synchronization of surges in the 1820s and 1830s, the 1880s, the first half of the twentieth century, and particularly the last decade.
ISSN:2469-4452
2469-4460
DOI:10.1080/24694452.2023.2200487