Temperature reconstruction from tree‐ring maximum density of Balfour spruce in eastern Tibet, China
Temperature reconstruction from tree‐ring maximum density of Balfour spruce in eastern Tibet, China
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DOI：
10.1002/joc.2000
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发表时间：
2009-08
期刊：
影响因子：
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通讯作者：
Lilyl . Wang;Jianping Duan;Jin Chen;Lei Huang;X. Shao
中科院分区：
文献类型：
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作者：
Lilyl . Wang;Jianping Duan;Jin Chen;Lei Huang;X. Shao
木材源自Balfour云杉[Picea likiangensis var. balfouriana]。会。用X射线密度法测定最大迟木密度（MXD）；个别系列首先交叉日期，然后结合起来形成一个标准的年表。它被用来重建公元1695年至2000年8月至9月的平均温度，它解释了总温度变化的63.5%。重建温度序列的小波分析表明，1800 ~ 1860年存在一个20年的气候周期，20世纪初存在一个~ 50年的气候周期。版权所有©2009英国皇家气象学会
Wood from Balfour spruce [Picea likiangensis var. balfouriana (Rehd. et Wils.)] was collected at three sites in eastern Tibet. Maximum latewood densities (MXD) were measured by X‐ray densitometry; individual series were first cross dated and then combined to form a standard chronology. This chronology was significantly correlated with late summer temperatures on the eastern Tibetan Plateau. It was used to reconstruct the August–September mean temperature for the period 1695–2000 A.D., and it explained the 63.5% of the total temperature variance. Wavelet analysis of the reconstructed temperature series suggested the existence of a 20‐year climatic cycle during the period 1800–1860 and a ∼50‐year cycle at the beginning of the twentieth century. Copyright © 2009 Royal Meteorological Society