IGSNRR OpenIR
Variation of delta O-18 in precipitation and its response to upstream atmospheric convection and rainout: A case study of Changsha station, south-central China
Zhou, Hui1; Zhang, Xinping1,2; Yao, Tianci3; Hua, Mingquan1; Wang, Xuejie1; Rao, Zhiguo1; He, Xinguang1,2
2019-04-01
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume659Pages:1199-1208
Corresponding AuthorZhang, Xinping(zxp@hunnu.edu.cn)
AbstractThe results of analyses of the stable isotopes of oxygen in precipitation (delta O-18(p)) are presented for every rainfall event from January 2010 to December 2017 in Changsha, south-central China. Our aims were to elucidate the variations of delta O-18(p) on different timescales and to identify the main meteorological drivers of variations in the oxygen isotopic composition of precipitation. Results showed that there were no statistically significant and consistent negative correlations between delta O-18(p) and local precipitation amount on either daily or monthly timescale; however, changes in delta O-18(p) in Changsha responded sensitively to the variation of precipitation in the key upstream area along air mass trajectories. Year-to-year, the strongest negative lagged correlations (r') between delta O-18(p) and the preceding average precipitation amount varied from -0.79 to -0.63 (all significant at the 0.001 level) in the warm half-year (from April to September) of 2010-2017. However, in the cold half-year (from October to the following March), corresponding r' values varied from -0.79 to -0.38 that were all significant at the 0.001 level, except for the year 2012. These findings suggest that the amplitude of the isotopic signal was closely linked with the position and intensity of upstream rainout activity. This was supported by strong relationships between precipitation-weighted mean delta O-18 (delta O-18(w)) and average precipitation amount in the key upstream area at the monthly scale; correlation coefficients were -0.76 and -0.57 between 2010 and 2017 in the warm half-year and cold half-year, respectively (both significant at the 0.001 level). Results advance our understanding of the temporal variation of the stable oxygen isotopic composition of precipitation, and demonstrate that local isotopic proxy records may be influenced by upstream rainout processes. (c) 2019 Elsevier B.V. All rights reserved.
KeywordPrecipitation isotope OLR Moisture transport Rainout effect
DOI10.1016/j.scitotenv.2018.12.396
WOS KeywordISOTOPIC COMPOSITION ; STABLE-ISOTOPES ; MOISTURE SOURCE ; WET SEASON ; MONSOON ; VARIABILITY ; CLIMATE ; RECORD
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41571021] ; first-class disciplines (Geography) in Hunan Normal University[810006]
Funding OrganizationNational Natural Science Foundation of China ; first-class disciplines (Geography) in Hunan Normal University
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000457293700116
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/49900
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhang, Xinping
Affiliation1.Hunan Normal Univ, Coll Resources & Environm Sci, Changsha 410081, Hunan, Peoples R China
2.Key Lab Geospatial Big Data Min & Applicat, Changsha 410081, Hunan, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Hui,Zhang, Xinping,Yao, Tianci,et al. Variation of delta O-18 in precipitation and its response to upstream atmospheric convection and rainout: A case study of Changsha station, south-central China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,659:1199-1208.
APA Zhou, Hui.,Zhang, Xinping.,Yao, Tianci.,Hua, Mingquan.,Wang, Xuejie.,...&He, Xinguang.(2019).Variation of delta O-18 in precipitation and its response to upstream atmospheric convection and rainout: A case study of Changsha station, south-central China.SCIENCE OF THE TOTAL ENVIRONMENT,659,1199-1208.
MLA Zhou, Hui,et al."Variation of delta O-18 in precipitation and its response to upstream atmospheric convection and rainout: A case study of Changsha station, south-central China".SCIENCE OF THE TOTAL ENVIRONMENT 659(2019):1199-1208.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhou, Hui]'s Articles
[Zhang, Xinping]'s Articles
[Yao, Tianci]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhou, Hui]'s Articles
[Zhang, Xinping]'s Articles
[Yao, Tianci]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhou, Hui]'s Articles
[Zhang, Xinping]'s Articles
[Yao, Tianci]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.