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DOI	10.1016/j.gloplacha.2021.103690
	Temporal evolution of the influence of atmospheric circulation on regional cloud cover as revealed by tree-ring delta O-18 in southwestern China
	Wang, Wenchao; Zeng, Xiaomin; Liu, Xiaohong; An, Wenling; Zhang, Lingnan
通讯作者	Zeng, XM ; Liu, XH (通讯作者)，Shaanxi Normal Univ, Sch Geog & Tourism, Xian 710119, Peoples R China. ; Liu, XH (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China.
发表日期	2022
ISSN	0921-8181
EISSN	1872-6364
卷号	208
英文摘要	The hydroclimate of southwestern China has experienced pronounced fluctuations over the past few decades. In this study, the total cloud cover variability of southwestern China during May-October for the past 276 years was reconstructed based on the composite tree-ring delta O-18 chronology. The record spans the common interval from 1734 to 2009 CE. Moisture-related factors, such as relative humidity, the precipitation, and cloud cover over the region, were the climatic factors controlling tree-ring delta O-18. The reconstructed cloud cover exhibited a decreasing trend since 1900, which was linked to the weakening of the Indian summer monsoon. However, the relationship between cloud cover and the monsoon system was temporally unstable, which may be due to El Nino-southern oscillation and the Indian Ocean dipole. Furthermore, the sea surface temperature (SST) over the Indian and East Pacific oceans influenced the delivery of moisture over the study area; however, the influence of SST on the different oceanic regions varied between different periods. During the low-cloud-cover period, the link between SST and regional cloud cover weakened, and local circulation became the driving factor. Additionally, local circulation may disrupt the influence of monsoons on the hydroclimate in southwestern China, which was supported by the backward trajectory results.
关键词	SOUTHEASTERN TIBETAN PLATEAU CLIMATE-CHANGE STABLE-ISOTOPES OXYGEN-ISOTOPE VARIABILITY MONSOON DIPOLE RECONSTRUCTION SENSITIVITY MOUNTAINS
英文关键词	Tree-ring delta O-18; Cloud reconstruction; Sea surface temperature; Backward trajectory; Indian summer monsoon
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000718563100003
来源期刊	GLOBAL AND PLANETARY CHANGE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254152
作者单位	[Wang, Wenchao; Zeng, Xiaomin; Liu, Xiaohong; Zhang, Lingnan] Shaanxi Normal Univ, Sch Geog & Tourism, Xian 710119, Peoples R China; [Liu, Xiaohong] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China; [An, Wenling] Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Wang, Wenchao,Zeng, Xiaomin,Liu, Xiaohong,et al. Temporal evolution of the influence of atmospheric circulation on regional cloud cover as revealed by tree-ring delta O-18 in southwestern China[J]. 中国科学院西北生态环境资源研究院,2022,208.
APA	Wang, Wenchao,Zeng, Xiaomin,Liu, Xiaohong,An, Wenling,&Zhang, Lingnan.(2022).Temporal evolution of the influence of atmospheric circulation on regional cloud cover as revealed by tree-ring delta O-18 in southwestern China.GLOBAL AND PLANETARY CHANGE,208.
MLA	Wang, Wenchao,et al."Temporal evolution of the influence of atmospheric circulation on regional cloud cover as revealed by tree-ring delta O-18 in southwestern China".GLOBAL AND PLANETARY CHANGE 208(2022).