Climatic control of the surge periodicity of an Icelandic outlet glacier
Striberger, Johan LU ; Björck, Svante LU ; Benediktsson, Ivar Orn ; Snowball, Ian LU ; Bertacchi Uvo, Cintia LU
; Ingolfsson, Olafur
and Kjaer, Kurt H.
(2011)
In Journal of Quaternary Science
26(6).
p.561-565
- Abstract
- Surging outlet glaciers are important in draining large ice caps, but the mechanisms controlling surge periodicities are poorly known. We investigated a sediment sequence from the glacier-fed Lake Logurinn in eastern Iceland, and our unique annually resolved data, based on sedimentary varves, imply that Eyjabakkajokull, an outlet glacier of Vatnajokull, began surging about 2200 cal a BP (before 1950 AD). Approximately 1700 cal a BP, the glacier started to surge at a uniform 34- to 38-year periodicity that prevailed until the coldest part of the Little Ice Age when the periodicity almost halved to 21-23 years. Since the late 1800s the surge periodicity of Eyjabakkajokull has returned to a longer period of 35-40 years. We suggest that surge... (More)
- Surging outlet glaciers are important in draining large ice caps, but the mechanisms controlling surge periodicities are poorly known. We investigated a sediment sequence from the glacier-fed Lake Logurinn in eastern Iceland, and our unique annually resolved data, based on sedimentary varves, imply that Eyjabakkajokull, an outlet glacier of Vatnajokull, began surging about 2200 cal a BP (before 1950 AD). Approximately 1700 cal a BP, the glacier started to surge at a uniform 34- to 38-year periodicity that prevailed until the coldest part of the Little Ice Age when the periodicity almost halved to 21-23 years. Since the late 1800s the surge periodicity of Eyjabakkajokull has returned to a longer period of 35-40 years. We suggest that surge periodicities of Eyjabakkajokull are forced by climatically driven mass balance changes, which may be a common forcing factor for similar surge-type outlet glaciers. Copyright (C) 2011 John Wiley & Sons, Ltd. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2186840
- author
- Striberger, Johan
LU
; Björck, Svante
LU
; Benediktsson, Ivar Orn
; Snowball, Ian
LU
; Bertacchi Uvo, Cintia
LU
; Ingolfsson, Olafur
and Kjaer, Kurt H.
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- climate, glacial surge, Iceland, surge periodicity, varved lake, sediments
- in
- Journal of Quaternary Science
- volume
- 26
- issue
- 6
- pages
- 561 - 565
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000294583000001
- scopus:80051472823
- ISSN
- 1099-1417
- DOI
- 10.1002/jqs.1527
- language
- English
- LU publication?
- yes
- id
- f8d6e4e5-81d8-44d4-97b3-a356d629bcfb (old id 2186840)
- date added to LUP
- 2016-04-01 14:16:25
- date last changed
- 2022-01-27 23:45:23
@article{f8d6e4e5-81d8-44d4-97b3-a356d629bcfb,
abstract = {{Surging outlet glaciers are important in draining large ice caps, but the mechanisms controlling surge periodicities are poorly known. We investigated a sediment sequence from the glacier-fed Lake Logurinn in eastern Iceland, and our unique annually resolved data, based on sedimentary varves, imply that Eyjabakkajokull, an outlet glacier of Vatnajokull, began surging about 2200 cal a BP (before 1950 AD). Approximately 1700 cal a BP, the glacier started to surge at a uniform 34- to 38-year periodicity that prevailed until the coldest part of the Little Ice Age when the periodicity almost halved to 21-23 years. Since the late 1800s the surge periodicity of Eyjabakkajokull has returned to a longer period of 35-40 years. We suggest that surge periodicities of Eyjabakkajokull are forced by climatically driven mass balance changes, which may be a common forcing factor for similar surge-type outlet glaciers. Copyright (C) 2011 John Wiley & Sons, Ltd.}},
author = {{Striberger, Johan and Björck, Svante and Benediktsson, Ivar Orn and Snowball, Ian and Bertacchi Uvo, Cintia and Ingolfsson, Olafur and Kjaer, Kurt H.}},
issn = {{1099-1417}},
keywords = {{climate; glacial surge; Iceland; surge periodicity; varved lake; sediments}},
language = {{eng}},
number = {{6}},
pages = {{561--565}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Journal of Quaternary Science}},
title = {{Climatic control of the surge periodicity of an Icelandic outlet glacier}},
url = {{http://dx.doi.org/10.1002/jqs.1527}},
doi = {{10.1002/jqs.1527}},
volume = {{26}},
year = {{2011}},
}