An extreme drought event in the central Tien Shan area in the year 1945

被引：44

作者：

Li, J. ^{[1
]}

Cook, E. R. ^{[1
]}

Chen, F. ^{[2
]}

Gou, X. ^{[2
]}

D'Arrigo, R. ^{[1
]}

Yuan, Y. ^{[3
]}

机构：

[1] Columbia Univ, Lamont Doherty Earth Observ, Tree Ring Lab, Palisades, NY 10964 USA

[2] Lanzhou Univ, Ctr Arid Environm & Paleoclimate Res, MOE Key Lab W Chinas Environm Syst, Lanzhou 730000, Peoples R China

[3] China Meteorol Adm, Inst Desert Meteorol, Urumqi 830002, Peoples R China

来源：

JOURNAL OF ARID ENVIRONMENTS | 2010年 / 74卷 / 10期

基金：

美国国家科学基金会;

关键词：

Drought; Dendrochronology; ENSO; Northwest China; Tien Shan; TREE-RINGS; CLIMATE EXTREMES; NORTH PACIFIC; OCEAN; VARIABILITY; IMPACTS; WEATHER; CHINA; RECONSTRUCTION; MOUNTAINS;

D O I：

10.1016/j.jaridenv.2010.03.002

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Moisture sensitive trees from the central Tien Shan area, northwest China show a pattern of extremely low growth in 1945. Evidence from a number of sources indicates that a remarkable drought event, in both spatial and temporal terms, occurred over the central Tien Shan and surrounding areas in that year. Climatological analysis reveals that this significant growth reduction is likely a combined effect of unusually dry and warm conditions. We also show that this extreme drought is associated with a La Nina or cold phase El Nino-Southern Oscillation (ENSO) event. Meanwhile, cooler sea surface temperatures (SSTs) in the northern Indian Ocean, particularly in the Arabian Sea, also appear to have contributed to this severe drought episode. Overall, our case study of 1945 extreme drought event in the central Tien Shan area suggests there might be a close link between extreme climate conditions in remote north central Asia and coupled ocean-atmosphere dynamics in the tropics. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1225 / 1231

页数：7

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