DOI: 10.1007/s00382-012-1611-x
Scopus记录号: 2-s2.0-84888037236
论文题名: Tree-ring reconstructed summer temperature anomalies for temperate East Asia since 800 C.E
作者: Cook E.R. ; Krusic P.J. ; Anchukaitis K.J. ; Buckley B.M. ; Nakatsuka T. ; Sano M.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2013
卷: 41, 期: 2017-11-12 起始页码: 2957
结束页码: 2972
语种: 英语
英文关键词: Asia
; Paleoclimate
; Temperature
; Tree-rings
; Volcanic
英文摘要: We develop a summer temperature reconstruction for temperate East Asia based on a network of annual tree-ring chronologies covering the period 800-1989 C.E. The East Asia reconstruction is the regional average of 585 individual grid point summer temperature reconstructions produced using an ensemble version of point-by-point regression. Statistical calibration and validation tests indicate that the regional average possesses sufficient overall skill to allow it to be used to study the causes of temperature variability and change over the region. The reconstruction suggests a moderately warm early medieval epoch (ca. 850-1050 C.E.), followed by generally cooler 'Little Ice Age' conditions (ca. 1350-1880 C.E.) and 20th century warming up to the present time. Since 1990, average temperature has exceeded past warm epochs of comparable duration, but it is not statistically unprecedented. Superposed epoch analysis reveals a volcanic forcing signal in the East Asia summer temperature reconstruction, resulting in pulses of cooler summer conditions that may persist for several years. Substantial uncertainties remain, however, particularly at lower frequencies, thus requiring caution and scientific prudence in the interpretation of this record. © 2012 Springer-Verlag Berlin Heidelberg. 资助项目: NSF, National Science Foundation
; NSF, National Science Foundation
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54724
Appears in Collections: 过去全球变化的重建
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作者单位: Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, 10964, United States; Department of Physical Geography and Quaternary Geology, Stockholm University, Stockholm, Sweden; Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Woods Hole, MA, 02543, United States; Graduate School of Environmental Studies, Nagoya University, Nagoya, 464-8601, Japan
Recommended Citation:
Cook E.R.,Krusic P.J.,Anchukaitis K.J.,et al. Tree-ring reconstructed summer temperature anomalies for temperate East Asia since 800 C.E[J]. Climate Dynamics,2013-01-01,41(2017-11-12)