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Sökning: onr:"swepub:oai:gup.ub.gu.se/314418" > The Origin of Tree-...

  • Edwards, J. (författare)

The Origin of Tree-Ring Reconstructed Summer Cooling in Northern Europe During the 18th Century Eruption of Laki

  • Artikel/kapitelEngelska2022

Förlag, utgivningsår, omfång ...

  • 2022

Nummerbeteckningar

  • LIBRIS-ID:oai:gup.ub.gu.se/314418
  • https://gup.ub.gu.se/publication/314418URI
  • https://doi.org/10.1029/2021PA004386DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-203150URI

Kompletterande språkuppgifter

  • Språk:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Basaltic fissure eruptions, which are characteristic of Icelandic volcanism, are extremely hazardous due to the large quantities of gases and aerosols they release into the atmosphere. The 1783–1784 CE Laki eruption was one of the most significant high-latitude eruptions in the last millennium and had substantial environmental and climatic impacts. Contemporary observations recorded the presence of a sulfuric haze over Iceland and Europe, which caused famine from vegetation damage and resulted in a high occurrence of respiratory illnesses and related mortality. Historical records in northern Europe show that the summer of 1783 was anomalously warm, but regional tree-ring maximum latewood density (MXD) data from that year are low and lead to erroneously colder reconstructed summer temperatures. Here, we measure wood anatomical characteristics of Scots pine (Pinus sylvestris) from Jämtland, Sweden in order to identify the cause of this discrepancy. We show that the presence of intraannual density fluctuations in the majority of 1783 growth rings, a sudden reduction in lumen and cell wall area, and the measurement resolution of traditional X-ray densitometry led to the observed reduced annual MXD value. Multiple independent lines of evidence suggest these anatomical anomalies were most likely the result of direct acidic damage to trees in Northern Europe and that the normal relationship between summer temperature and MXD can be disrupted by this damage. Our study also demonstrates that quantitative wood anatomy offers a high-resolution approach to identifying anomalous years and extreme events in the tree-ring record. © 2022. American Geophysical Union. All Rights Reserved.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Anchukaitis, K. J. (författare)
  • Gunnarson, Björn E.,1967-Stockholms universitet,Institutionen för naturgeografi(Swepub:su)bgunn (författare)
  • Pearson, C. (författare)
  • Seftigen, Kristina,1985Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences(Swepub:gu)xsefkr (författare)
  • von Arx, G. (författare)
  • Linderholm, Hans W.,1968Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences(Swepub:gu)xlinha (författare)
  • Stockholms universitetInstitutionen för naturgeografi (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Paleoceanography and Paleoclimatology37:22572-45172572-4525

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