气候变化领域集成服务门户(CCPortal): The spatial extent of 20th-century warmth in the context of the past 1200 years

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DOI	10.1126/science.1120514
	The spatial extent of 20th-century warmth in the context of the past 1200 years
	Osborn T.J.; Briffa K.R.
发表日期	2006
ISSN	0036-8075
起始页码	841
结束页码	844
卷号	311 期号:5762
英文摘要	Periods of widespread warmth or cold are identified by positive or negative deviations that are synchronous across a number of temperature-sensitive proxy records drawn from the Northern Hemisphere, the most significant and longest duration feature during the last 1200 years is the geographical extent of warmth in the middle to late 20th century. Positive anomalies during 890 to 1170 and negative anomalies during 1580 to 1850 are consistent with the concepts of a Medieval Warm Period and a Little Ice Age, but comparison with instrumental temperatures shows the spatial extent of recent warmth to be of greater significance than that during the medieval period.
英文关键词	Atmospheric thermodynamics; Temperature distribution; Thermal effects; Negative deviations; Temperature-sensitive proxy records; Warmth; Environmental engineering; global warming; spatial distribution; twentieth century; article; climate change; environmental impact; geography; geological time; global climate; priority journal; temperature sensitivity
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244957
作者单位	Climatic Research Unit, School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, United Kingdom
推荐引用方式 GB/T 7714	Osborn T.J.,Briffa K.R.. The spatial extent of 20th-century warmth in the context of the past 1200 years[J],2006,311(5762).
APA	Osborn T.J.,&Briffa K.R..(2006).The spatial extent of 20th-century warmth in the context of the past 1200 years.Science,311(5762).
MLA	Osborn T.J.,et al."The spatial extent of 20th-century warmth in the context of the past 1200 years".Science 311.5762(2006).