Volcanic cooling signal in tree ring temperature records for the past millennium

dc.contributor.author D'Arrigo, Rosanne
dc.contributor.author Wilson, Rob
dc.contributor.author Anchukaitis, Kevin J.
dc.date.accessioned 2013-11-12T20:42:49Z
dc.date.available 2014-10-22T08:57:21Z
dc.date.issued 2013-08-29
dc.description Author Posting. © American Geophysical Union, 2013. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Atmospheres 118 (2013): 9000–9010, doi:10.1002/jgrd.50692. en_US
dc.description.abstract Tree rings are an important proxy for understanding the timing and environmental consequences of volcanic eruptions as they are precisely dated at annual resolution and, particularly in tree line regions of the world, sensitive to cold extremes that can result from climatically significant volcanic episodes. Volcanic signals have been detected in ring widths and by the presence of frost-damaged rings, yet are often most clearly and quantitatively represented within maximum latewood density series. Ring width and density reconstructions provide quantitative information for inferring the variability and sensitivity of the Earth's climate system on local to hemispheric scales. After a century of dendrochronological science, there is no evidence, as recently theorized, that volcanic or other adverse events cause such severely cold conditions near latitudinal tree line that rings might be missing in all trees at a given site in a volcanic year (“stand-wide” missing rings), resulting in misdating of the chronology. Rather, there is a clear indication of precise dating and development of rings in at least some trees at any given site, even under adverse cold conditions, based on both actual tree ring observations and modeling analyses. The muted evidence for volcanic cooling in large-scale temperature reconstructions based at least partly on ring widths reflects several factors that are completely unrelated to any misdating. These include biological persistence of such records, as well as varying spatial patterns of response of the climate system to volcanic events, such that regional cooling, particularly for ring widths rather than density, can be masked in the large-scale reconstruction average. en_US
dc.description.embargo 2014-02-29 en_US
dc.description.sponsorship We thank the National Science Foundation for fundingmuch of the research presented herein. RW’s Scottish work is currently funded through the UK Leverhulme Trust and Natural Environment Research Council (NERC) projects, “RELiC: Reconstructing 8000 years of Environmental and Landscape change in the Cairngorms (F/00 268/BG)” and “SCOT2K: Reconstructing 2000 years of Scottish climate from tree rings (NE/K003097/1).” en_US
dc.format.mimetype application/pdf
dc.identifier.citation Journal of Geophysical Research: Atmospheres 118 (2013): 9000–9010 en_US
dc.identifier.doi 10.1002/jgrd.50692
dc.identifier.uri https://hdl.handle.net/1912/6294
dc.language.iso en_US en_US
dc.publisher John Wiley & Sons en_US
dc.relation.uri https://doi.org/10.1002/jgrd.50692
dc.subject Volcanism en_US
dc.subject Dendrochronology en_US
dc.subject Maximum latewood density en_US
dc.subject Tree rings en_US
dc.subject Cross-dating en_US
dc.subject Temperature reconstructions en_US
dc.title Volcanic cooling signal in tree ring temperature records for the past millennium en_US
dc.type Article en_US
dspace.entity.type Publication
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relation.isAuthorOfPublication.latestForDiscovery 54ba7693-07f0-4762-9617-953b63ceae4d
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