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Influence of the Indian Ocean Dipole on tree-ring delta O-18 of monsoonal Southeast Tibet
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; Hochreuther, P
Source PublicationCLIMATIC CHANGE
2016
Volume137Issue:1-2Pages:217-230
DOI10.1007/s10584-016-1663-8
AbstractWe 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.
Subject Area自然地理学
WOS IDWOS:000378741900015
Language英语
Indexed BySCI
KeywordEl-nino Stable-isotopes High Asia Climate-change Time-series Plateau Cellulose Variability Summer Precipitation
Cooperation Status国际
Department环境
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Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/7667
Collection图书馆
Corresponding AuthorHochreuther, P
Affiliation1.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
GB/T 7714
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.
APA Hochreuther, P .,Wernicke, J .,Griessinger, J .,Molg, T .,Zhu, HF .,...&Hochreuther, P.(2016).Influence of the Indian Ocean Dipole on tree-ring delta O-18 of monsoonal Southeast Tibet.CLIMATIC CHANGE,137(1-2),217-230.
MLA Hochreuther, P ,et al."Influence of the Indian Ocean Dipole on tree-ring delta O-18 of monsoonal Southeast Tibet".CLIMATIC CHANGE 137.1-2(2016):217-230.
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