東北夏季氣溫變化與北半球溫度及極渦的關(guān)系

doi:10.3969/2012jms.00**

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東北夏季氣溫變化與北半球溫度及極渦的關(guān)系
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                        10.3969/2012jms.00**
                    
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中圖分類號(hào):P423.3
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The relationship of variability of summer temperature between Northeast China and the Northern Hemisphere and the impacts of the polar vortex

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利用1961—2002年中國(guó)東北地區(qū)80個(gè)氣象站夏季6—8月逐日氣溫、美國(guó)NCAR/NCEP再分析資料和國(guó)家氣候中心環(huán)流因子資料，采用相關(guān)分析、SVD分解等方法，對(duì)中國(guó)東北夏季氣溫變化與中高緯主要環(huán)流系統(tǒng)的關(guān)系進(jìn)行探討。結(jié)果發(fā)現(xiàn)：中國(guó)東北位于東西伯利亞變溫區(qū)南緣，其夏季氣溫年際變化規(guī)律和東西伯利亞一致；北極極渦邊緣的形態(tài)變化影響東北夏季氣溫，不同的邊緣形態(tài)對(duì)應(yīng)東北不同的溫度分布特征，主要是極渦邊緣70 °N左右的150~180 °E和60~90 °W兩個(gè)關(guān)鍵區(qū)，其高度場(chǎng)的變化決定著東北夏季氣溫的變化。

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With the NCAR/NCEP monthly reanalysis data and the monthly mean temperature at 80 stations in Northeast China from 1961 to 2002, as well as 74 factors of general circulation from Chinese National Climate Center, the feature of summer temperature over northeast China and the correlation between summer temperature and middle-high latitude circulation system are studied by the method of SVD and correlation analysis. The following conclusions are reached: Northeast China is located in the south edge of Siberia temperature variation region with the same inter-annual summer temperature variation that east Siberia has. Polar vortex is an important system which affects the variation of summer temperature over northeast of China. The variation of its edge of height field as well as the extent or contraction of the polar vortex in different directions leads to different distribution and variation of the summer temperature. The height field located in about 70 °N ,150~180 °E and 60~90 °W which are two key regions.

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盧秉紅,李紅斌,趙坤,楊青,孫鴻雁.東北夏季氣溫變化與北半球溫度及極渦的關(guān)系.氣象科學(xué),2009,(5):638-644 Lu Binghong    ,Li Hongbin, Zhao Kun, Yang Qing, Sun Hongyan. The relationship of variability of summer temperature between Northeast China and the Northern Hemisphere and the impacts of the polar vortex. Journal of the Meteorological Sciences,2009,(5):638-644

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抽查舔水白紧大视频,冲喜娘子超甜哒激情五月,亚洲黄色图片偷拍网站,亚洲三级黄片免费播放,91在线观看喷潮红桃,日韩精品在线观看一区二区,久久久久久久久久久久黄色片子,日产精品99久久久久久久久,欧洲亚洲另类图片小说