DOI: 10.1007/s10584-016-1663-8
Scopus记录号: 2-s2.0-84962712362
论文题名: Influence of the Indian Ocean Dipole on tree-ring δ18O of monsoonal Southeast Tibet
作者: Hochreuther P. ; Wernicke J. ; GrieÃinger J. ; Mölg T. ; Zhu H. ; Wang L. ; Bräuning A.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2016
卷: 137, 期: 2018-01-02 起始页码: 217
结束页码: 230
语种: 英语
Scopus关键词: Isotopes
; Rain
; Climate dynamics
; Daily temperatures
; Dipole mode indices
; Indian Ocean dipole
; Negative correlation
; Positive correlations
; Regional climate
; Tree ring cellulose
; Forestry
; cellulose
; chronology
; cloud cover
; coniferous tree
; Indian Ocean Dipole
; monsoon
; oxygen isotope
; regional climate
; tree ring
; twentieth century
; China
; Himalayas
; Qinghai-Xizang Plateau
; Larix
; Larix griffithiana
英文摘要: We present a newly developed, annually resolved tree-ring cellulose δ18O 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 δ18O chronologies are stable and highly significant. Over the 20th century, we find no long-term climatic trends. This is consistent with other tree-ring δ18O 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 δ18O of tree-rings on the southeastern TP. © 2016, Springer Science+Business Media Dordrecht. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/84263
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Institute of Geography, University of Erlangen-Nuremberg, Wetterkreuz 15, Erlangen, Germany; Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China; Institute of Geographical Sciences and Natural Resource Research, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Hochreuther P.,Wernicke J.,Grieà inger J.,et al. Influence of the Indian Ocean Dipole on tree-ring δ18O of monsoonal Southeast Tibet[J]. Climatic Change,2016-01-01,137(2018-01-02)