Show simple item record

dc.contributor.authorEdwards, J.
dc.contributor.authorAnchukaitis, K.J.
dc.contributor.authorGunnarson, B.E.
dc.contributor.authorPearson, C.
dc.contributor.authorSeftigen, K.
dc.contributor.authorvon Arx, G.
dc.contributor.authorLinderholm, H.W.
dc.date.accessioned2022-03-31T22:41:22Z
dc.date.available2022-03-31T22:41:22Z
dc.date.issued2022
dc.identifier.citationEdwards, J., Anchukaitis, K. J., Gunnarson, B. E., Pearson, C., Seftigen, K., von Arx, G., & Linderholm, H. W. (2022). The Origin of Tree-Ring Reconstructed Summer Cooling in Northern Europe During the 18th Century Eruption of Laki. Paleoceanography and Paleoclimatology.
dc.identifier.issn2572-4517
dc.identifier.doi10.1029/2021PA004386
dc.identifier.urihttp://hdl.handle.net/10150/663872
dc.description.abstractBasaltic 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.
dc.language.isoen
dc.publisherJohn Wiley and Sons Inc
dc.rightsCopyright © 2022. American Geophysical Union. All Rights Reserved.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.titleThe Origin of Tree-Ring Reconstructed Summer Cooling in Northern Europe During the 18th Century Eruption of Laki
dc.typeArticle
dc.typetext
dc.contributor.departmentSchool of Geography, Development, and Environment, University of Arizona
dc.contributor.departmentLaboratory of Tree-Ring Research, University of Arizona
dc.identifier.journalPaleoceanography and Paleoclimatology
dc.description.note6 month embargo; first published: 24 January 2022
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
dc.eprint.versionFinal published version
dc.source.journaltitlePaleoceanography and Paleoclimatology


Files in this item

Thumbnail
Name:
Paleoceanog and Paleoclimatol - ...
Size:
3.533Mb
Format:
PDF
Description:
Final Published Version

This item appears in the following Collection(s)

Show simple item record