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学科主题: 地理学::自然地理学
题名: Using stable isotopes to understand seasonal and interannual dynamics in moisture sources and atmospheric circulation in precipitation
作者: 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
通讯作者: Song, XF
关键词: EASTERN TIANSHAN MOUNTAINS ; RIVER-BASIN ; DELTA-O-18 VALUES ; CLIMATIC CONTROLS ; SUMMER MONSOON ; CHINA ; VAPOR ; WATER ; DEUTERIUM ; O-18
刊名: HYDROLOGICAL PROCESSES
发表日期: 2017
DOI: 10.1002/hyp.11388
卷: 31, 期:26, 页:4682-4692
收录类别: SCI
合作性质: 国内
文章类型: Article
类目[WOS]: Water Resources ; Water Resources
研究领域[WOS]: Water Resources
英文摘要: Stable 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.
语种: 英语
WOS记录号: WOS:000418407200006
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7916
Appears in Collections:图书馆_期刊论文

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作者单位: 1.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:
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.
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