气候变化领域集成服务门户(CCPortal): Relative humidity history on the Batang-Litang Plateau of western China since 1755 reconstructed from tree-ring delta O-18 and delta D

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DOI	10.1007/s00382-013-1937-z
	Relative humidity history on the Batang-Litang Plateau of western China since 1755 reconstructed from tree-ring delta O-18 and delta D
	An, Wenling; Liu, Xiaohong; Leavitt, Steven W.; Xu, Guobao; Zeng, Xiaomin; Wang, Wenzhi; Qin, Dahe; Ren, Jiawen
发表日期	2014
ISSN	0930-7575
起始页码	2639
结束页码	2654
卷号	42 期号:9-10
英文摘要	We measured the annual variation in the stable isotopes of oxygen (delta O-18) and hydrogen (delta D) in tree rings of Abies georgei on the Batang-Litang Plateau of western China. Although correlations between tree-ring delta O-18 and delta D are relatively weak in semi-arid regions, we found a strong correlation between the delta O-18 and delta D time series from 1755 to 2009 under the wetter environment. Tree-ring delta O-18 and delta D time series are both significantly and negatively correlated with moisture conditions from June to August, including relative humidity and total precipitation, respectively, from 1960 to 2009. Considering the difference in low-frequency domain between the two isotopes, the relative humidity histories from June to August, reconstructed separately from the tree-ring delta O-18 and delta D data with instrumental climate data, reveal a persistent drying trend since 1850s, especially since the early 1970s. There is an obvious offset of reconstructed relative humidity from tree-ring delta O-18 and delta D in the period 1755-1820, despite the strong similarity in their 21-year moving averages. The decreased relative humidity since the 1850s may be associated with the thermal contrast between the sea surface temperature of the Indian Ocean and the Qinghai-Tibetan Plateau, which determines the strength of moisture transfer via the Indian summer monsoon.
英文关键词	Tree rings; Dendrochronology; delta O-18; delta D; Relative humidity; Atmospheric circulations; Batang-Litang Plateau
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
来源期刊	CLIMATE DYNAMICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158593
作者单位	Liu, XH (corresponding author), Chinese Acad Sci, State Key Lab Cryospher Sci, 320 Donggang West Rd, Lanzhou 730000, Peoples R China.
推荐引用方式 GB/T 7714	An, Wenling,Liu, Xiaohong,Leavitt, Steven W.,et al. Relative humidity history on the Batang-Litang Plateau of western China since 1755 reconstructed from tree-ring delta O-18 and delta D[J],2014,42(9-10).
APA	An, Wenling.,Liu, Xiaohong.,Leavitt, Steven W..,Xu, Guobao.,Zeng, Xiaomin.,...&Ren, Jiawen.(2014).Relative humidity history on the Batang-Litang Plateau of western China since 1755 reconstructed from tree-ring delta O-18 and delta D.CLIMATE DYNAMICS,42(9-10).
MLA	An, Wenling,et al."Relative humidity history on the Batang-Litang Plateau of western China since 1755 reconstructed from tree-ring delta O-18 and delta D".CLIMATE DYNAMICS 42.9-10(2014).