A record of the Southern Oscillation Index for the past 2,000 years from precipitation proxies

doi:10.1038/ngeo1231

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	A record of the Southern Oscillation Index for the past 2,000 years from precipitation proxies
	Yan, Hong 1; Sun, Liguang 1; Wang, Yuhong 1,2; Huang, Wen3 ; Qiu, Shican ; Yang, Chengyun
	2011-09-01
发表期刊	NATURE GEOSCIENCE
ISSN	1752-0894
卷号	4 期号:9 页码:611-614
文章类型	Article
摘要	The El Nino-Southern Oscillation (ENSO) is a coupled ocean-atmosphere climate phenomenon in the tropical Pacific Ocean. The interannual climate variations have been shown to modify both the Hadley and Walker meridional and zonal atmospheric circulations, with strong impacts on global climate(1-3). Proxy-based reconstructions of the Southern Oscillation Index on a multi-decadal scale have shown that the strength and frequency of El Nino occurrences have varied over the past millennium(4-7). Here we compile reconstructions of precipitation(8-15) from regions that experience substantial ENSO variability to extend the multidecadal-scale Southern Oscillation Index to include the past 2,000 years. We find that the Medieval Warm Period (similar to AD 800-1300) was characterized by a negative index, which indicates more El Nino-dominated conditions, whereas during the Little Ice Age (similar to AD 1400-1850) more La Nina-dominated conditions prevailed. The Southern Oscillation Index we derive is significantly correlated with reconstructions of solar irradiance and mean Northern Hemisphere temperature fluctuations.; The El Nino-Southern Oscillation (ENSO) is a coupled ocean-atmosphere climate phenomenon in the tropical Pacific Ocean. The interannual climate variations have been shown to modify both the Hadley and Walker meridional and zonal atmospheric circulations, with strong impacts on global climate(1-3). Proxy-based reconstructions of the Southern Oscillation Index on a multi-decadal scale have shown that the strength and frequency of El Nino occurrences have varied over the past millennium(4-7). Here we compile reconstructions of precipitation(8-15) from regions that experience substantial ENSO variability to extend the multidecadal-scale Southern Oscillation Index to include the past 2,000 years. We find that the Medieval Warm Period (similar to AD 800-1300) was characterized by a negative index, which indicates more El Nino-dominated conditions, whereas during the Little Ice Age (similar to AD 1400-1850) more La Nina-dominated conditions prevailed. The Southern Oscillation Index we derive is significantly correlated with reconstructions of solar irradiance and mean Northern Hemisphere temperature fluctuations.
学科领域	Geology
DOI	10.1038/ngeo1231
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000294452400009
引用统计	被引频次：215[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/11765
专题	实验海洋生物学重点实验室海洋生物技术研发中心
作者单位	1.Univ Sci & Technol China, Sch Earth & Space Sci, Inst Polar Environm, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Univ Wisconsin, Dept Dairy Sci, Madison, WI 53706 USA
推荐引用方式 GB/T 7714	Yan, Hong,Sun, Liguang,Wang, Yuhong,et al. A record of the Southern Oscillation Index for the past 2,000 years from precipitation proxies[J]. NATURE GEOSCIENCE,2011,4(9):611-614.
APA	Yan, Hong,Sun, Liguang,Wang, Yuhong,Huang, Wen,Qiu, Shican,&Yang, Chengyun.(2011).A record of the Southern Oscillation Index for the past 2,000 years from precipitation proxies.NATURE GEOSCIENCE,4(9),611-614.
MLA	Yan, Hong,et al."A record of the Southern Oscillation Index for the past 2,000 years from precipitation proxies".NATURE GEOSCIENCE 4.9(2011):611-614.

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