Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Evidence towards a thermal lag in the response of KårsaglaciÀren, northern Sweden, to climate change
Responsible organisation
2011 (English)In: Journal of Glaciology, ISSN 0022-1430, E-ISSN 1727-5652, Journal of Glaciology, Vol. 57, no 205, p. 895-903Article in journal (Refereed) Published
Abstract [en]

Recent topographical and ground-penetrating radar (GPR) surveys of Kårsaglaciären, which is a small (<1 km2) and thin (<56 m) mountain glacier in Arctic Sweden, show that there are small areas of temperate ice in the lowermost part of the glacier. This is curious because we would expect such a small and thin glacier to have a fully cold ablation zone. Specifically, with our analyses of present glacier geometry and thickness and of the prevailing climate, we are unable to explain the presence of temperate ice within the snout of Kårsaglaciären using prevailing models of glacier thermal structure. This leads us to suggest that the presence of temperate ice within Kårsaglaciären is a remnant of a previous polythermal state that existed when the glacier was larger and thicker. Kårsaglaciären is thus out of synch with current geometry and climate and is exhibiting a ‘thermal lag’. We propose that, with time, Kårsaglaciären’s ablation zone and perhaps the entire glacier may well become fully cold as the temperate zone shrinks further. We anticipate that such a thermal lag is likely to be present within other Arctic glaciers. A thermal lag and an evolution to a fully cold thermal state have significant implications for the dynamic behaviour of small Arctic glaciers and for meltwater production from them.

Place, publisher, year, edition, pages
Cambridge University Press , 2011. Vol. 57, no 205, p. 895-903
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:polar:diva-8221DOI: 10.3189/002214311798043672OAI: oai:DiVA.org:polar-8221DiVA, id: diva2:1297608
Available from: 2019-03-20 Created: 2019-03-20 Last updated: 2019-03-20

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text
In the same journal
Journal of Glaciology
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf