CAJ | 학술논문

利用NCEP/NCAR再分析资料、北极涛动（AO）指数序列及中国160个台站月温度资料，分析1951-2007年中国东部地区冬季气温与AO指数的变化特征及其相互关系。结果表明：1951-2007年AO指数与中国东部地区冬季气温指数基本呈正相关关系。中国东部地区冬季气温指数（IWT）与北极涛动指数（IAO ）均逐渐增强，并有显著的年际和年代际变化，均存在准18 a周期变化特征。从偏相关系数来看，在年际尺度上，西伯利亚高压对中国东部地区冬季气温的年际变化影响较大，而AO与冬季气温无显著相关关系；在年代际尺度上，AO对中国东部地区冬季气温的影响较显著，比西伯利亚高压影响大。东亚大槽偏弱时，中国冬季气温偏高，AO指数也偏高，反之则相反。在年际尺度上，东亚大槽对中国东部地区冬季气温的年际变化影响较大，而AO与冬季气温无显著相关关系；在年代际尺度上，AO和东亚大槽对中国冬季气温的变化影响均较显著。
이용NCEP/NCAR재분석자료、북겁도동（AO）지수서렬급중국160개태참월온도자료，분석1951-2007년중국동부지구동계기온여AO지수적변화특정급기상호관계。결과표명：1951-2007년AO지수여중국동부지구동계기온지수기본정정상관관계。중국동부지구동계기온지수（IWT）여북겁도동지수（IAO ）균축점증강，병유현저적년제화년대제변화，균존재준18 a주기변화특정。종편상관계수래간，재년제척도상，서백리아고압대중국동부지구동계기온적년제변화영향교대，이AO여동계기온무현저상관관계；재년대제척도상，AO대중국동부지구동계기온적영향교현저，비서백리아고압영향대。동아대조편약시，중국동계기온편고，AO지수야편고，반지칙상반。재년제척도상，동아대조대중국동부지구동계기온적년제변화영향교대，이AO여동계기온무현저상관관계；재년대제척도상，AO화동아대조대중국동계기온적변화영향균교현저。
Using the NCEP/NCAR reanalysis data,Arctic Oscillation (AO)index series and monthly temperature at 160 weather stations in China,variation characteristics of winter air temperature and AO index series as well as both relationships from 195 1 to 2007 were analyzed.The results show that there is a positive correlation relation-ship between winter air temperature and AO indexes in the Eastern China.Winter air temperature index and Arctic Oscillation index both increase gradually.Their annual and inter-decadal variations are significant and both have a 1 8 years cycle.According to the partial correlation coefficient,effects of the Siberia high on winter air temperature in the Eastern China are significant on annual scale,while the AO index has not a significant correlation with win-ter air temperature;effects of AO on winter air temperature are more significant than that of the Siberia high on in-terdecadal scale.Winter air temperature and AO index in the Eastern China are high when the East Asian trough is weak,and vice versa.On inter-annual scale,the East Asian though has significant effect on inter-annual variations of winter air temperature of Eastern China,while the correlation between AO and winter air temperature is not sig-nificant;on interdecadal scale,effects of AO index and the East Asian though on winter air temperature changes in the Eastern China are significant.