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Variations of Stable Isotopic Composition in Atmospheric Water Vapor and their Controlling Factors-A 6-Year Continuous Sampling Study in Nanjing, Eastern China

文献类型：期刊论文

作者Li, Yaju6; An, Wenling4,5; Pang, Hongxi3,6; Wu, Shuang-Ye2; Tang, Yanying6; Zhang, Wangbin6; Hou, Shugui1,3,6
刊名JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
出版日期2020-11-27
卷号125期号:22页码:18
ISSN号2169-897X
DOI10.1029/2019JD031697
英文摘要Long-term continuous monitoring of water vapor isotopes has great potential to improve our understanding of mechanisms that control stable isotope variations in hydrological processes, which is essential for accurate interpretation of isotopic proxy records. Here we presented a 6-year daily data set of stable isotopes in atmospheric water vapor (delta O-18(v), delta D-v, and d-excess(v)) and precipitation (delta O-18(p), delta D-p, and d-excess(p)) at Nanjing in Eastern China, an area under the influence of the East Asian Monsoon. Based on isotopic variations, we divided a year into three seasons, that is, summer monsoon season (June-September), spring (March-May), and fall-winter (October-February). During summer monsoon season, the low delta O-18(v) values were mainly caused by the upstream convective rainout process during the large-scale water vapor transport, and the d-excess(v) values were the lowest due to the weak kinetic isotopic fractionation over its oceanic moisture source. Spring had the highest delta O-18(v) values, which was related to less distillation of local moisture under relatively high air temperatures. The relatively high d-excess(v) values resulted from the kinetic isotopic fractionation due to drier condition. The fall-winter season has the lowest delta O-18(v) values because the local distillation was the strongest with low air temperature. The d-excess(v) values were highest during this season because of the strongest kinetic isotopic fractionation during the continental moisture recycling under dry climate condition. Using the isotopic composition of both precipitation and water vapor, we found that the annual mean subcloud raindrop evaporation is similar to 11% of precipitation. These findings improve our understanding of hydrological cycle on the East Asian Monsoon region and will potentially improve our interpretation of numerous isotopic proxy records from this region.
WOS关键词DEUTERIUM EXCESS ; MODERN PRECIPITATION ; HIGH-RESOLUTION ; SUMMER MONSOON ; CAVE RECORDS ; DELTA-D ; VARIABILITY ; CONVECTION ; MOISTURE ; SOUTH
资助项目Natural Science Foundation of China[41771031] ; Natural Science Foundation of China[91837102] ; Natural Science Foundation of China[41830644] ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
WOS研究方向Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000595725700017
出版者AMER GEOPHYSICAL UNION
资助机构Natural Science Foundation of China ; Natural Science Foundation of China ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; Natural Science Foundation of China ; Natural Science Foundation of China ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; Natural Science Foundation of China ; Natural Science Foundation of China ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; Natural Science Foundation of China ; Natural Science Foundation of China ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
源URL[http://ir.iggcas.ac.cn/handle/132A11/98649]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Pang, Hongxi; Hou, Shugui
作者单位1.Shanghai Jiao Tong Univ, Sch Oceanog, Shanghai, Peoples R China
2.Univ Dayton, Dept Geol, Dayton, OH 45469 USA
3.Collaborat Innovat Ctr Climate Change, Nanjing, Jiangsu, Peoples R China
4.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
5.Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing, Peoples R China
6.Nanjing Univ, Key Lab Coast & Isl Dev, Minist Educ, Sch Geog & Ocean Sci, Nanjing, Peoples R China
推荐引用方式
GB/T 7714		 Li, Yaju,An, Wenling,Pang, Hongxi,et al. Variations of Stable Isotopic Composition in Atmospheric Water Vapor and their Controlling Factors-A 6-Year Continuous Sampling Study in Nanjing, Eastern China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2020,125(22):18.
APA Li, Yaju.,An, Wenling.,Pang, Hongxi.,Wu, Shuang-Ye.,Tang, Yanying.,...&Hou, Shugui.(2020).Variations of Stable Isotopic Composition in Atmospheric Water Vapor and their Controlling Factors-A 6-Year Continuous Sampling Study in Nanjing, Eastern China.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,125(22),18.
MLA Li, Yaju,et al."Variations of Stable Isotopic Composition in Atmospheric Water Vapor and their Controlling Factors-A 6-Year Continuous Sampling Study in Nanjing, Eastern China".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 125.22(2020):18.

入库方式： OAI收割

来源：地质与地球物理研究所

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