中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
August temperature variability in the southeastern Tibetan Plateau since AD 1385 inferred from tree rings

文献类型:SCI/SSCI论文

作者Xu Y.; Xu Y.
发表日期2011
关键词Tree ring Climate variability Temperature reconstruction timberline Picea likiangensis var balfouriana Southeastern Tibetan Plateau northern-hemisphere temperatures climate resolution chronologies sensitivity millennium monsoon growth china width
英文摘要Long-term high-resolution climate proxies are essential for understanding climate variability on the Tibetan Plateau (TP), where few long-term climate records are available. In this paper, we describe a summer (August) temperature reconstruction over the period 1385-2002 based on a tree-ring width chronology of Balfour spruce (Picea likiangensis var. balfouriana) on the southeastern TP created using the Regional Curve Standardization method. The reconstruction explains 44.7% of the variance in the instrumental temperature records during the calibration period (1962-2002), and captures temperature variability over a broad region of the TP. Warmer than average Augusts were found during the periods 1446-1494, 1509-1522, 1553-1567, 1797-1812, 1845-1905 and 1918-2002. Cooler than average Augusts occurred from 1385-1416, 1426-1445, 1495-1508, 1523-1552, 1568-1686, 1695-1718, 1725-1796, 1813-1844 and 1906-1917. A warming trend in the 20th century was unprecedented during the past six centuries. The reconstruction closely matched other tree-ring summer temperature reconstructions from neighboring regions, as well as patterns from ice-core delta(18)O data, and fluctuated in synchrony with Northern Hemisphere temperature reconstructions. (C) 2011 Elsevier B.V. All rights reserved.
出处Palaeogeography Palaeoclimatology Palaeoecology
305
1-4
84-92
收录类别SCI
语种英语
ISSN号0031-0182
源URL[http://ir.igsnrr.ac.cn/handle/311030/22215]  
专题地理科学与资源研究所_历年回溯文献
推荐引用方式
GB/T 7714
Xu Y.,Xu Y.. August temperature variability in the southeastern Tibetan Plateau since AD 1385 inferred from tree rings. 2011.

入库方式: OAI收割

来源:地理科学与资源研究所

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