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Using stable isotopes to understand seasonal and interannual dynamics in moisture sources and atmospheric circulation in precipitation
Tang, Y (Tang, Yu)1; Song, XF (Song, Xianfang)1; Zhang, YH (Zhang, Yinghua)1; Han, DM (Han, Dongmei)1; Ai, LK (Ai, Likun)2; Zhao, TB (Zhao, Tianbao)3; Wang, YJ (Wang, Yajun)1; Song, XF
Source PublicationHYDROLOGICAL PROCESSES
2017
Volume31Issue:26Pages:4682-4692
DOI10.1002/hyp.11388
AbstractStable isotopes in precipitation are useful tracers to strengthen understanding of climate change and hydrological processes. In this study, the moisture sources of 190 precipitation events in Beijing were analysed using the Hybrid Single-particle Lagrangian Integrated Trajectory model, based on which we studied the relation between variations in precipitation O-18 and dynamics in moisture sources and atmospheric circulation in seasonal and interannual timescales. Categorization of 7 groups of moisture sources was performed, among which oceanic moisture sources presented lower O-18 in precipitation than continental moisture sources. The results show that seasonal variations of precipitation O-18 were caused by changes of moisture sources. In summer, moisture from proximal oceans dominated vapour transport to Beijing due to increasing monsoon strength and resulted in a relatively small variation of precipitation O-18. At the interannual timescale, the variations of O-18 in summer precipitation were related to dynamics in oceanic moistures, showing depleted values when the contribution of oceanic moistures, especially the proportion of long-distance oceanic moisture, was high. Further analysis indicated that changes of oceanic moisture sources were controlled by the strength of summer monsoons. These findings address the complexity of moisture sources in midlatitude monsoon areas and suggest that isotopic signals in precipitation have the potential to deduce changes in moisture sources and atmospheric circulation and can therefore serve for palaeoclimate reconstruction.
Subject Area自然地理学
WOS IDWOS:000418407200006
Language英语
Indexed BySCI
KeywordEastern Tianshan Mountains River-basin Delta-o-18 Values Climatic Controls Summer Monsoon China Vapor Water Deuterium O-18
WOS Research AreaWater Resources
WOS SubjectWater Resources ; Water Resources
Cooperation Status国内
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/7916
Collection图书馆
Corresponding AuthorSong, XF
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Surface Proc, Beijing 100101, Peoples R China.
2.Chinese Acad Sci, Inst Tibetan Plateau Res, Int Programme Off, Pole Environm 3, Beijing 100101, Peoples R China
3.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Res Temperate East A, Beijing 100029, Peoples R China.
Recommended Citation
GB/T 7714
Tang, Y ,Song, XF ,Zhang, YH ,et al. Using stable isotopes to understand seasonal and interannual dynamics in moisture sources and atmospheric circulation in precipitation[J]. HYDROLOGICAL PROCESSES,2017,31(26):4682-4692.
APA Tang, Y .,Song, XF .,Zhang, YH .,Han, DM .,Ai, LK .,...&Song, XF.(2017).Using stable isotopes to understand seasonal and interannual dynamics in moisture sources and atmospheric circulation in precipitation.HYDROLOGICAL PROCESSES,31(26),4682-4692.
MLA Tang, Y ,et al."Using stable isotopes to understand seasonal and interannual dynamics in moisture sources and atmospheric circulation in precipitation".HYDROLOGICAL PROCESSES 31.26(2017):4682-4692.
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