IGSNRR OpenIR
isotopiccompositionofprecipitationoveraridnorthwesternchinaanditsimplicationsforthewatervapororigin
LIU Jianrong; SONG Xianfang; SUN Xiaomin; YUAN Guofu; LIU Xin; WANG Shiqin
2009
Source Publicationjournalofgeographicalsciences
ISSN1009-637X
Volume19Issue:2Pages:164
AbstractIn order to reveal the characteristics and climatic controls on the stable isotopic composition of precipitation over Arid Northwestern China, eight stations have been selected from Chinese Network of Isotopes in Precipitation (CHNIP). During the year 2005 and 2006, monthly precipitation samples have been collected and analyzed for the composition of delta D and delta O-18. The established local meteoric water line delta D=7.42 delta O-18+1.38, based on the 95 obtained monthly composite samples, could be treated as isotopic input function across the region. The deviations of slope and intercept from the Global Meteoric Water Line indicated the specific regional meteorological conditions. The monthly delta O-18 values were characterized by a positive correlation with surface air temperature (delta O-18 (aEuro degrees) =0.33 T (A degrees C)-13.12). The amount effect visualized during summer period (delta O-18 (aEuro degrees) = -0.04P (mm)-3.44) though not appeared at a whole yearly-scale. Spatial distributions of delta O-18 have properly portrayed the atmospheric circulation background in each month over Arid Northwestern China. The quantitative simulation of delta O-18, which involved a Rayleigh fractionation and a kinetic fractionation, demonstrated that the latter one was the dominating function of condensation of raindrops. Furthermore, the raindrop suffered a re-evaporation during falling processes, and the precipitation vapor might have been mixed with a quantity of local recycled water vapor. Multiple linear regression equations and a delta O-18-T relation have been gained by using meteorological parameters and delta O-18 data to evaluate physical controls on the long-term data. The established delta O-18-T relation, which has been based on the present-day precipitation, could be considered as a first step of quantitatively reconstructing the historical environmental climate.
Language英语
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/78628
Collection中国科学院地理科学与资源研究所
Affiliation中国科学院地理科学与资源研究所
First Author Affilication中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
LIU Jianrong,SONG Xianfang,SUN Xiaomin,et al. isotopiccompositionofprecipitationoveraridnorthwesternchinaanditsimplicationsforthewatervapororigin[J]. journalofgeographicalsciences,2009,19(2):164.
APA LIU Jianrong,SONG Xianfang,SUN Xiaomin,YUAN Guofu,LIU Xin,&WANG Shiqin.(2009).isotopiccompositionofprecipitationoveraridnorthwesternchinaanditsimplicationsforthewatervapororigin.journalofgeographicalsciences,19(2),164.
MLA LIU Jianrong,et al."isotopiccompositionofprecipitationoveraridnorthwesternchinaanditsimplicationsforthewatervapororigin".journalofgeographicalsciences 19.2(2009):164.
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
[LIU Jianrong]'s Articles
[SONG Xianfang]'s Articles
[SUN Xiaomin]'s Articles
Baidu academic
Similar articles in Baidu academic
[LIU Jianrong]'s Articles
[SONG Xianfang]'s Articles
[SUN Xiaomin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[LIU Jianrong]'s Articles
[SONG Xianfang]'s Articles
[SUN Xiaomin]'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.