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学科主题: 地理学::自然地理学
题名: Influence of the Indian Ocean Dipole on tree-ring delta O-18 of monsoonal Southeast Tibet
作者: Hochreuther, P (Hochreuther, Philipp)1; Wernicke, J (Wernicke, Jakob)1; Griessinger, J (Griessinger, Jussi)1; Molg, T (Moelg, Thomas)1; Zhu, HF (Zhu, Haifeng)2; Wang, L (Wang, Lily)3; Brauning, A (Braeuning, Achim)1
通讯作者: Hochreuther, P
刊名: CLIMATIC CHANGE
发表日期: 2016
DOI: 10.1007/s10584-016-1663-8
卷: 137, 期:1-2, 页:217-230
收录类别: SCI
合作性质: 国际
文章类型: Article
英文摘要: We present a newly developed, annually resolved tree-ring cellulose delta O-18 chronology for the southeastern Tibetan Plateau (TP) from Sikkim larch (Larix griffithii), spanning between 1684 and 2012. Comparisons with local and regional climate data reveal strong positive correlations with monthly sunshine hours, temperature and daily temperature amplitude as well as strong negative correlations with relative humidity, vapor pressure, rain days per month and cloud cover of August. Relationships with local and regional tree-ring delta O-18 chronologies are stable and highly significant. Over the 20th century, we find no long-term climatic trends. This is consistent with other tree-ring delta O-18 chronologies of other tree species south of the Himalayas, but contrasts with results from isotope studies north of the Himalayas. This suggests stable macroclimatic flow patterns throughout the last centuries for the southern tree stands. In terms of large-scale climate dynamics, we find evidence of a significant 30-year wave influencing our tree-ring oxygen chronology, most probably induced by the Indian Ocean Dipole and influencing tree-ring oxygen isotope chronologies along the southeastern Himalaya and the southeastern rim of the TP. This pattern is spatially and temporarily consistent among the chronologies and has apparently strengthened during the last century. During periods of strong positive dipole mode activity, the dipole mode index shows positive correlations with the delta O-18 of tree-rings on the southeastern TP.
语种: 英语
WOS记录号: WOS:000378741900015
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7667
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Univ Erlangen Nurnberg, Inst Geog, Wetterkreuz 15, D-91058 Erlangen, Germany
2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resource Res, Beijing, Peoples R China

Recommended Citation:
Hochreuther, P ,Wernicke, J ,Griessinger, J ,et al. Influence of the Indian Ocean Dipole on tree-ring delta O-18 of monsoonal Southeast Tibet[J]. CLIMATIC CHANGE,2016,137(1-2):217-230.
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文件名: V.137(1-2) 217-230 2016.pdf
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