DOI: 10.1007/s00382-016-3433-8
Scopus记录号: 2-s2.0-84994704864
论文题名: Spatiotemporal drought variability of the eastern Tibetan Plateau during the last millennium
作者: Deng Y. ; Gou X. ; Gao L. ; Yang M. ; Zhang F.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2017
卷: 49, 期: 2017-05-06 起始页码: 2077
结束页码: 2091
语种: 英语
英文关键词: Drought variability
; Eastern Tibetan Plateau
; Point by point regression
; Standardized Precipitation Evapotranspiration Index
英文摘要: Tibetan Plateau is the headwater region of many major Asian rivers and very susceptive to climate change. Therefore, knowledge about climate and its spatiotemporal variability in this area is very important for ecological conservation, water resource management and social development. The aim of this study was to reconstruct and analyze the hydroclimate variation on eastern Tibetan Plateau (ETP) over many centuries and explore possible forcing factors on regional hydroclimate variability. We used 118 tree-ring chronologies from ETP to reconstruct the gridded May–July Standardized Precipitation Evapotranspiration Index for the ETP over the last millennium. The reconstruction was developed using an ensemble point-by-point reconstruction method, and a searching region method was used to locate the candidate tree-ring chronologies. The reconstructions have nicely captured the spatial and temporal features of the regional drought variation. The drought variations in south and north of 32.5°N are notably different, which may be related to the divergence influence of North Atlantic Oscillation on the climate systems in the south and north, as well as differences in local climate. Spectral analysis and series comparison suggest that the drought variation in the northeastern Tibetan Plateau has been possibly influenced by solar activity on centurial and longer time scale. © 2016, Springer-Verlag Berlin Heidelberg.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53104
Appears in Collections: 过去全球变化的重建
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作者单位: Key Laboratory of Western China’s Environmental Systems (Ministry of Education), School of Earth and Environmental Sciences, Lanzhou University, Lanzhou, China; State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
Recommended Citation:
Deng Y.,Gou X.,Gao L.,et al. Spatiotemporal drought variability of the eastern Tibetan Plateau during the last millennium[J]. Climate Dynamics,2017-01-01,49(2017-05-06)