DOI: 10.1002/2015GL063956
论文题名: Revising midlatitude summer temperatures back to A.D. 600 based on a wood density network
作者: Schneider L. ; Smerdon J.E. ; Büntgen U. ; Wilson R.J.S. ; Myglan V.S. ; Kirdyanov A.V. ; Esper J.
刊名: Geophysical Research Letters
ISSN: 0094-9279
EISSN: 1944-9010
出版年: 2015
卷: 42, 期: 11 起始页码: 4556
结束页码: 4562
语种: 英语
英文关键词: beta value
; Little Ice Age
; maximum latewood density
; millennial reconstruction
; tree rings
; volcanic cooling
Scopus关键词: Cooling
; Forestry
; Glacial geology
; Beta value
; Little Ice Age
; Low and high frequencies
; Maximum latewood density
; Northern Hemispheres
; Temperature variability
; Tree rings
; Volcanic eruptions
; Volcanoes
英文摘要: 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. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84934438275&doi=10.1002%2f2015GL063956&partnerID=40&md5=864e589645008c61fddf04c01f4d1536
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8895
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Geography, Johannes Gutenberg University, Mainz, Germany
Recommended Citation:
Schneider L.,Smerdon J.E.,Büntgen U.,et al. Revising midlatitude summer temperatures back to A.D. 600 based on a wood density network[J]. Geophysical Research Letters,2015-01-01,42(11).