中文摘要：

利用近年来发表的北半球、北半球各大洲及中国近千年温度序列,分析了年代至百年尺度上北半球和中国温度变化之间的异同性、北半球各大洲百年尺度典型暖期和典型冷期的位相差异,并比较了中世纪典型暖期与20世纪暖期的温暖程度差异.结果表明：1）在150～200年周期段,北半球和中国平均温度变化主要受太阳活动的影响,具有相似的变化特征;2）在50年和100年的尺度上,北半球和中国温度的变化速率具有相似性,近150年来二者都表现出持续的增温趋势;3）北半球洲际尺度上不存在起止时间相近的百年尺度典型暖期和冷期;4）北半球、中国及其他大洲最近30年（1971～2000A.D.）的温度较中世纪（800～1250A.D.）任何30年时段都要高,而最近100年（1901 ～ 2000A.D.）的温度只有北极地区显著高于中世纪最暖100年.

英文摘要：

In this paper,we calculated new 1200-year temperature series for the North Hemisphere （NH） and China by applying ＂ Composite-Plus-Scale （CPS） ＂ method to the published eight and three multi-proxy temperature reconstructions from the NH and China,respectively.Besides the new 1200-year temperature series for the NH and China,the temperature reconstructions for the Continents of the NH published by the PAGES-2k group were also included in the analysis.And then using these millennium-long temperature series,we assessed a few general characteristics of temperature changes during the past 1200 years over the NH,the Continents and China.Firstly,we investigated the phase relationship of temperature variations at centennial scales in the NH and China during the past 1200 years.Secondly,we assessed the rates of temperature changes for the NH and China at the multi-decadal to centennial scales.Thirdly,we estimated the differences between the 20th warm period and the typical warm intervals （the warmest 100 or 30 years） during the Medieval Warm Period （MWP,800～1250A.D.）in the continents of the NH.Finally,we focused on the time differences of the typical warm intervals during the MWP and typical cold intervals during the Little Ice Age （LIA,1400～1900A.D.） in the different continents of the NH.After above investigations,the main conclusions can be draw as following：（1） Temperature variations are generally in-phase between the NH and China at centennial timescales,and the bandwidth of 150～200 years are common periods for the NH and China temperature series,which is likely a result of solar variability.（2） At 50-year and 100-year timescales,the rates of temperature change in the NH and China are similar,and both show continuous warming trends over the last 150 years.（3） At the continental scale,there were no synchronous typical warm （or cold） intervals during the MWP （or the LIA）.（4） The temperature in the past 30 years （1971～ 2000A.D.） is the warmest compared to the a