Signals and memory in tree-ring width and density data

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F15%3A00473315" target="_blank" >RIV/86652079:_____/15:00473315 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.dendro.2015.07.001" target="_blank" >http://dx.doi.org/10.1016/j.dendro.2015.07.001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.dendro.2015.07.001" target="_blank" >10.1016/j.dendro.2015.07.001</a>

Result language

angličtina

Original language name

Signals and memory in tree-ring width and density data

Original language description

It has been suggested that maximum latewood density (MXD) should be used instead of tree-ring width (TRW) data to reconstruct post-volcanic cooling effects. A thorough assessment of high frequency signals and potentially differing memory effects in long MXD and TRW chronologies, in response to large volcanic eruptions, is still missing, however. We here present a compilation of MXD and TRW chronologies from 11 sites in the Northern Hemisphere, covering the past 750+ years, and containing significant June-August temperature signals. Basic assessment of the data using Superposed Epoch Analysis reveals a temporally extended response in TRW, by 2-3 years, to large volcanic eruptions, though post-volcanic cooling patterns vary considerably within the Northern Hemisphere network Comparison with instrumental temperature data demonstrates the TRW chronologies underestimate cold conditions associated with large volcanic eruptions, a bias that is mitigated in the MXD data. While species composition (pine, spruce, larch) has no detectable influence on the cooling patterns, trees from high latitude sites (>60 degrees N) indicate a stronger and delayed (1-2 years) response to large eruptions, compared to the lower latitude sites (<60 degrees N). These basic findings caution against using TRW data for quantitatively estimating post-volcanic cooling and for comparison against the simulated climate effects of volcanic eruptions in models.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EH - Ecology - communities

OECD FORD branch

—

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Dendrochronologia

ISSN

1125-7865

e-ISSN

—

Volume of the periodical

35

Issue of the periodical within the volume

OCT

Country of publishing house

IT - ITALY

Number of pages

9

Pages from-to

62-70

UT code for WoS article

000362926500008

EID of the result in the Scopus database

2-s2.0-84937713273