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Solar forcing of climate during the last millennium recorded in lake sediments from northern Sweden

Kokfelt, Ulla LU and Muscheler, Raimund LU orcid (2013) In The Holocene 23(3). p.447-452
Abstract
We report on a sediment record from a small lake within the subarctic wetland complex Stordalen in northernmost Sweden covering the last 1000 years. Variations in the content of minerogenic material are found to follow reconstructed variations in the activity of the Sun between the 13th and 18th centuries. Periods of low solar activity are associated with minima in minerogenic material and vice versa. A comparison between the sunspot cycle and a long instrumental series of summer precipitation further reveals a link between the 11 yr solar cycle and summer precipitation variability since around 1960. Solar minima are in this period associated with minima in summer precipitation, whereas the amount of summer precipitation increases during... (More)
We report on a sediment record from a small lake within the subarctic wetland complex Stordalen in northernmost Sweden covering the last 1000 years. Variations in the content of minerogenic material are found to follow reconstructed variations in the activity of the Sun between the 13th and 18th centuries. Periods of low solar activity are associated with minima in minerogenic material and vice versa. A comparison between the sunspot cycle and a long instrumental series of summer precipitation further reveals a link between the 11 yr solar cycle and summer precipitation variability since around 1960. Solar minima are in this period associated with minima in summer precipitation, whereas the amount of summer precipitation increases during periods with higher solar activity. Our results suggest that the climate responds to both the 11 yr solar cycle and to long-term changes in solar activity and in particular solar minima, causing dry conditions with resulting decreased runoff. (Less)
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author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
climate, lake sediments, minerogenic material, precipitation, runoff, solar activity
in
The Holocene
volume
23
issue
3
pages
447 - 452
publisher
SAGE Publications
external identifiers
  • wos:000316635400011
  • scopus:84874496305
ISSN
0959-6836
DOI
10.1177/0959683612460781
language
English
LU publication?
yes
id
5985fa54-cb3e-45da-a80d-7f777669f4c4 (old id 3761000)
date added to LUP
2016-04-01 10:59:10
date last changed
2022-03-27 21:27:22
@article{5985fa54-cb3e-45da-a80d-7f777669f4c4,
  abstract     = {{We report on a sediment record from a small lake within the subarctic wetland complex Stordalen in northernmost Sweden covering the last 1000 years. Variations in the content of minerogenic material are found to follow reconstructed variations in the activity of the Sun between the 13th and 18th centuries. Periods of low solar activity are associated with minima in minerogenic material and vice versa. A comparison between the sunspot cycle and a long instrumental series of summer precipitation further reveals a link between the 11 yr solar cycle and summer precipitation variability since around 1960. Solar minima are in this period associated with minima in summer precipitation, whereas the amount of summer precipitation increases during periods with higher solar activity. Our results suggest that the climate responds to both the 11 yr solar cycle and to long-term changes in solar activity and in particular solar minima, causing dry conditions with resulting decreased runoff.}},
  author       = {{Kokfelt, Ulla and Muscheler, Raimund}},
  issn         = {{0959-6836}},
  keywords     = {{climate; lake sediments; minerogenic material; precipitation; runoff; solar activity}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{447--452}},
  publisher    = {{SAGE Publications}},
  series       = {{The Holocene}},
  title        = {{Solar forcing of climate during the last millennium recorded in lake sediments from northern Sweden}},
  url          = {{http://dx.doi.org/10.1177/0959683612460781}},
  doi          = {{10.1177/0959683612460781}},
  volume       = {{23}},
  year         = {{2013}},
}