CAJ | 학술논문

利用1951-2007年华东地区14个代表站冬季(12-2月)温度资料和北半球500 hPa高度及北太平洋海温资料,通过合成分析、相关分析等方法,研究了华东地区冬季气温的气候变化及其与北半球500 hPa高度场、北太平洋海温场的关系.结果表明:华东地区冬季气温具有明显的年代际气候变化特征;前期夏季北半球500 hPa高度距平场和前期春季北太平洋海温距平场分布可作为华东冬季异常冷暖年的前兆信号;夏季北太平洋中部地区500 hPa高度场变化及前期10月西太平洋副高强弱变化,对华东地区冬季气温变化具有很好的指示性;春季南赤道海流区和西风漂流区海温异常变化,对华东地区冬季气温变化也具有很好的指示意义.
이용1951-2007년화동지구14개대표참동계(12-2월)온도자료화북반구500 hPa고도급북태평양해온자료,통과합성분석、상관분석등방법,연구료화동지구동계기온적기후변화급기여북반구500 hPa고도장、북태평양해온장적관계.결과표명:화동지구동계기온구유명현적년대제기후변화특정;전기하계북반구500 hPa고도거평장화전기춘계북태평양해온거평장분포가작위화동동계이상랭난년적전조신호;하계북태평양중부지구500 hPa고도장변화급전기10월서태평양부고강약변화,대화동지구동계기온변화구유흔호적지시성;춘계남적도해류구화서풍표류구해온이상변화,대화동지구동계기온변화야구유흔호적지시의의.
Using the spring (December-February) air temperature data of East China from 1951 to 2007, the 500 hPa geopotential height of the North hemisphere, and the SST data of the North Pacific Ocean, the relation between the climatic change of winter atmospheric temperature in the eastern area of China, the 500 hPa geopotential height of the North hemisphere and the sea surface temperature (SST) field have been analysed through methods of composite analysis and relation analysis. It is found that the winter air temperature in the eastern China has obviously decadal climate variation characteristic. The 500 hPa geopotential height of the North hemisphere in the preceding summer and the distribution pattern of the departure of SST in North Pacific Ocean in the preceding spring may be used as the precursory signals for the abnormally cold and warm in the east area of China. The variation of 500 hPa geopotential height of the middle areas in the North Pacific Ocean in summer and the change of subtropical high of the West Pacific Ocean in the preceding October are able to predict variation of the winter atmospheric temperature in the eastern China. The intensity change of the areas of South Equatorial current area and westwind drift area in the former spring is also meaningful for this purpose.