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DOI | 10.1016/j.yqres.2013.09.005 |
Precipitation variations and possible forcing factors on the Northeastern Tibetan Plateau during the last millennium | |
Gou, Xiaohua; Deng, Yang; Chen, Fahu; Yang, Meixue; Gao, Linlin; Nesje, Atle; Fang, Keyan | |
发表日期 | 2014 |
ISSN | 0033-5894 |
卷号 | 81期号:3页码:508-512 |
英文摘要 | Understanding precipitation variation, drought and flood history, and their associated forcing mechanisms are important to human society. In this study, five moisture-sensitive tree-ring width chronologies are used to represent variations in precipitation over the past millennium on the Northeastern Tibetan Plateau (NETP). We find a strong coherency between chronologies in the NEW, indicating a common response to regional climate during the last millennium. The first principal component of the five chronologies (PC1) correlates significantly with regional precipitation and can thus be used as an indicator of regional precipitation variations. Dry spells, even more severe than the 1920s drought, occurred during AD 1139-1152, 1294-1309, 1446-1503 and 1708-1726. Previous studies in this area using other proxies also identified these droughts. Multi-Taper spectral analysis demonstrates significant periodicities at 205 yr and 73 yr, plus a range of similar to 2 yr cycles, suggesting possible linkage with solar variation and the Pacific Decadal Oscillation (PDO). PC1 also shows coherent patterns with solar irradiance variation: the precipitation tends to reach low values during the well-known solar minimum. (C) 2013 University of Washington. Published by Elsevier Inc All rights reserved. |
英文关键词 | Northeastern Tibetan Plateau;Precipitation variations;Tree ring;Last millennium;Possible forcing factors |
语种 | 英语 |
WOS研究方向 | Physical Geography ; Geology |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS记录号 | WOS:000337217200012 |
来源期刊 | QUATERNARY RESEARCH |
来源机构 | 兰州大学 ; 中国科学院青藏高原研究所 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/1916 |
推荐引用方式 GB/T 7714 | Gou, Xiaohua,Deng, Yang,Chen, Fahu,et al. Precipitation variations and possible forcing factors on the Northeastern Tibetan Plateau during the last millennium[J]. 兰州大学, 中国科学院青藏高原研究所,2014,81(3):508-512. |
APA | Gou, Xiaohua.,Deng, Yang.,Chen, Fahu.,Yang, Meixue.,Gao, Linlin.,...&Fang, Keyan.(2014).Precipitation variations and possible forcing factors on the Northeastern Tibetan Plateau during the last millennium.QUATERNARY RESEARCH,81(3),508-512. |
MLA | Gou, Xiaohua,et al."Precipitation variations and possible forcing factors on the Northeastern Tibetan Plateau during the last millennium".QUATERNARY RESEARCH 81.3(2014):508-512. |
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