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Revising midlatitude summer temperatures back to A.D. 600 based on a wood density network

Lea Schneider; Jason E. Smerdon; Ulf Büntgen; Rob J. Wilson; Vladimir S. Myglan; Alexander V. Kirdyanov; Jan Esper

Title:
Revising midlatitude summer temperatures back to A.D. 600 based on a wood density network
Author(s):
Schneider, Lea
Smerdon, Jason E.
Büntgen, Ulf
Wilson, Rob J.
Myglan, Vladimir S.
Kirdyanov, Alexander V.
Esper, Jan
Date:
Type:
Articles
Department(s):
Lamont-Doherty Earth Observatory
Volume:
42
Persistent URL:
Book/Journal Title:
Geophysical Research Letters
Publisher:
American Geophysical Union
Abstract:
Annually resolved and millennium-long reconstructions of large-scale temperature variability are primarily composed of tree ring width (TRW) chronologies. Changes in ring width, however, have recently been shown to bias the ratio between low- and high-frequency signals. To overcome limitations in capturing the full spectrum of past temperature variability, we present a network of 15 maximum latewood density (MXD) chronologies distributed across the Northern Hemisphere extratropics. Independent subsets of continental-scale records consistently reveal high MXD before 1580 and after 1910, with below average values between these periods. Reconstructed extratropical summer temperatures reflect not only these long-term trends but also distinct cooling pulses after large volcanic eruptions. In contrast to TRW-dominated reconstructions, this MXD-based record indicates a delayed onset of the Little Ice Age by almost two centuries. The reduced memory inherent in MXD is likely responsible for the rapid recovery from volcanic-induced cooling in the fourteenth century and the continuation of warmer temperatures until ~1600.
Subject(s):
Paleoclimatology
Dendroclimatology
Weather--Effect of volcanic eruptions on
Global temperature changes
Atmosphere
Environmental sciences
Climatic changes
Geology
Publisher DOI:
https://doi.org/10.1002/2015GL063956
Item views
47
Metadata:
text | xml
Suggested Citation:
Lea Schneider, Jason E. Smerdon, Ulf Büntgen, Rob J. Wilson, Vladimir S. Myglan, Alexander V. Kirdyanov, Jan Esper, , Revising midlatitude summer temperatures back to A.D. 600 based on a wood density network, Columbia University Academic Commons, .

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