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A shift towards wetter and windier conditions in southern Sweden around the prominent solar minimum 2750 cal a BP

Mellström, Anette LU ; Van der Putten, Nathalie LU ; Muscheler, Raimund LU ; De Jong, Rixt and Björck, Svante LU (2015) In Journal of Quaternary Science 30(3). p.235-244
Abstract
A variety of palaeoclimatic records show a shift towards cooler, wetter and windier conditions in Europe around 2800 cal a BP. The shift broadly coincides with an increase of the atmospheric C-14 concentration, suggesting a connection between solar activity variations and climate change. Here we investigate a peat record from Undarsmosse in southern Sweden. In a previous study, based on a low-resolution chronology, this record showed increased aeolian sand influx and Sphagnum spore content around 2800 cal a BP, indicating high storm activity and wetter conditions. We applied the C-14 wiggle-match dating technique on the same record to construct a robust chronology to evaluate the temporal relationship to solar forcing. In addition, we... (More)
A variety of palaeoclimatic records show a shift towards cooler, wetter and windier conditions in Europe around 2800 cal a BP. The shift broadly coincides with an increase of the atmospheric C-14 concentration, suggesting a connection between solar activity variations and climate change. Here we investigate a peat record from Undarsmosse in southern Sweden. In a previous study, based on a low-resolution chronology, this record showed increased aeolian sand influx and Sphagnum spore content around 2800 cal a BP, indicating high storm activity and wetter conditions. We applied the C-14 wiggle-match dating technique on the same record to construct a robust chronology to evaluate the temporal relationship to solar forcing. In addition, we performed plant macrofossil analysis to determine local vegetation changes. Based on the new chronology, a shift to a Sphagnum-dominated bog, representing wetter conditions, and the onset of a period with increased storminess occurred around 2700 cal a BP. These changes are, within age model uncertainties, synchronous with climatic changes inferred from other sites in Europe, suggesting a shift in the larger scale atmospheric circulation, possibly triggered by decreased solar activity. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
C-14 wiggle-match dating, 2800 cal a BP, climate change, solar activity, southern Sweden
in
Journal of Quaternary Science
volume
30
issue
3
pages
235 - 244
publisher
John Wiley & Sons
external identifiers
  • wos:000353403800005
  • scopus:84928321808
ISSN
1099-1417
DOI
10.1002/jqs.2776
language
English
LU publication?
yes
id
067a6f48-b22a-4fc7-a5f0-a11677d3b9a9 (old id 5401091)
date added to LUP
2015-05-19 10:50:05
date last changed
2017-06-11 04:21:41
@article{067a6f48-b22a-4fc7-a5f0-a11677d3b9a9,
  abstract     = {A variety of palaeoclimatic records show a shift towards cooler, wetter and windier conditions in Europe around 2800 cal a BP. The shift broadly coincides with an increase of the atmospheric C-14 concentration, suggesting a connection between solar activity variations and climate change. Here we investigate a peat record from Undarsmosse in southern Sweden. In a previous study, based on a low-resolution chronology, this record showed increased aeolian sand influx and Sphagnum spore content around 2800 cal a BP, indicating high storm activity and wetter conditions. We applied the C-14 wiggle-match dating technique on the same record to construct a robust chronology to evaluate the temporal relationship to solar forcing. In addition, we performed plant macrofossil analysis to determine local vegetation changes. Based on the new chronology, a shift to a Sphagnum-dominated bog, representing wetter conditions, and the onset of a period with increased storminess occurred around 2700 cal a BP. These changes are, within age model uncertainties, synchronous with climatic changes inferred from other sites in Europe, suggesting a shift in the larger scale atmospheric circulation, possibly triggered by decreased solar activity.},
  author       = {Mellström, Anette and Van der Putten, Nathalie and Muscheler, Raimund and De Jong, Rixt and Björck, Svante},
  issn         = {1099-1417},
  keyword      = {C-14 wiggle-match dating,2800 cal a BP,climate change,solar activity,southern Sweden},
  language     = {eng},
  number       = {3},
  pages        = {235--244},
  publisher    = {John Wiley & Sons},
  series       = {Journal of Quaternary Science},
  title        = {A shift towards wetter and windier conditions in southern Sweden around the prominent solar minimum 2750 cal a BP},
  url          = {http://dx.doi.org/10.1002/jqs.2776},
  volume       = {30},
  year         = {2015},
}