Tree-ring δ<sup>18</sup>O-based July–August relative humidity reconstruction on Mt. Shimen, China, for the last 400 years

doi:10.1016/j.atmosres.2020.105024

GSTDTAP > 地球科学

DOI	10.1016/j.atmosres.2020.105024
	Tree-ring δ¹⁸O-based July–August relative humidity reconstruction on Mt. Shimen, China, for the last 400 years
	Yu Liu, Meng Ren, Qiang Li, Huiming Song, Ruoshi Liu
	2020-05-08
发表期刊	Atmospheric Research
出版年	2020
英文摘要	Understanding long-term drought variations in the past can help us to evaluate ongoing and future hydroclimate changes in the arid western Chinese Loess Plateau. The present study generated a new stable oxygen isotope (δ¹⁸O) chronology composed of five individual Pinus tabulaeformis Carr. isotope series from Mt. Shimen, China. Correlation function analysis revealed that the composite tree-ring δ¹⁸O series responded significantly to July–August relative humidity (RH_JA, r = −0.684, n = 47, p < .0001). A transfer function was thus designed, and the RH_JA in the Mt. Shimen region was reconstructed for the past 397 years. Several famous droughts in Chinese history, such as the Chong Zhen severe drought (1637–1643 CE), Ding Wu extraordinary drought (1876–1878 CE) and 1928–1930 CE severe drought, are captured by our reconstruction. Meanwhile, our reconstructed RH_JA compares well with other palaeoclimatic results around the study area. Spatial correlation analysis revealed that the RH_JA reconstruction displays large-scale representativeness. The reconstruction is significantly positively correlated with several Asian summer monsoon (ASM) indices, indicating that the reconstructed RH_JA reflects the variations in ASM intensity to a large extent. In terms of the local climate change mechanisms, we found that the factors affecting the variations in RH_JA in the Shimen region are complex and involve large-scale oceanic–atmospheric couplings, such as sea surface temperature (SST), El Niño-Southern Oscillation (ENSO) and North Atlantic Oscillation (NAO). Solar activity also certainly has great impacts.
领域	地球科学
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/248801
专题	地球科学
推荐引用方式 GB/T 7714	Yu Liu, Meng Ren, Qiang Li, Huiming Song, Ruoshi Liu. Tree-ring δ¹⁸O-based July–August relative humidity reconstruction on Mt. Shimen, China, for the last 400 years[J]. Atmospheric Research,2020.
APA	Yu Liu, Meng Ren, Qiang Li, Huiming Song, Ruoshi Liu.(2020).Tree-ring δ¹⁸O-based July–August relative humidity reconstruction on Mt. Shimen, China, for the last 400 years.Atmospheric Research.
MLA	Yu Liu, Meng Ren, Qiang Li, Huiming Song, Ruoshi Liu."Tree-ring δ¹⁸O-based July–August relative humidity reconstruction on Mt. Shimen, China, for the last 400 years".Atmospheric Research (2020).