DOI: 10.5194/cp-9-1153-2013
Scopus记录号: 2-s2.0-84883759710
论文题名: Temperature changes over the past 2000 yr in China and comparison with the Northern Hemisphere
作者: Ge Q. ; Hao Z. ; Zheng J. ; Shao X.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2013
卷: 9, 期: 3 起始页码: 1153
结束页码: 1160
语种: 英语
Scopus关键词: climate variation
; least squares method
; Medieval Warm Period
; Northern Hemisphere
; paleotemperature
; reconstruction
; regression analysis
; temperature profile
; warming
; China
英文摘要: We use principal component regression and partial least squares regression to separately reconstruct a composite series of temperature variations in China, and associated uncertainties, at a decadal resolution over the past 2000 yr. The reconstruction is developed using proxy temperature data with relatively high confidence levels from five regions across China, and using a temperature series from observations by the Chinese Meteorological Administration, covering the period from 1871 to 2000. Relative to the 1851-1950 climatology, our two reconstructions show four warm intervals during AD1-AD200, AD551-AD 760, AD951-AD 1320, and after AD1921, and four cold intervals during AD 201-AD 350, AD 441-AD 530, AD781-AD950, and AD1321-AD 1920. The temperatures during AD981-AD 1100 and AD1201-AD 1270 are comparable to those of the Present Warm Period, but have an uncertainty of ±0.28°C to ±0.42°C at the 95% confidence interval. Temperature variations over China are typically in phase with those of the Northern Hemisphere (NH) after 1000, a period which covers the Medieval Climate Anomaly, the Little Ice Age, and the Present Warm Period. In contrast, a warm period in China during AD541-AD 740 is not obviously seen in the NH. © Author(s) 2013. 资助项目: NSFC, National Natural Science Foundation of China
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49381
Appears in Collections: 气候变化与战略
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Recommended Citation:
Ge Q.,Hao Z.,Zheng J.,et al. Temperature changes over the past 2000 yr in China and comparison with the Northern Hemisphere[J]. Climate of the Past,2013-01-01,9(3)