CAJ | 학술논문

利用 NCEP/NCAR 再分析月平均风场资料和国家气候中心提供的中国160个气象站月平均气温资料，选用质量流函数计算方法描述平均经圈环流，以环流中心值大小表征其强度，分析1951-2010年 Hadley 环流强度趋势变化及其与中国东部气温的关系。结果表明：质量流函数能较好地表征平均经圈环流特征，且环流中心值大小能实际反映环流强度。近60 a来，冬季北半球 Hadley 环流强度呈线性增强的趋势；夏季南半球 Hadley 环流强度在20世纪80年代初发生了由减弱趋势转变为显著增强趋势的年代际转折。中国东部大部分地区气温的年代际变化能较好地被 Hadley 环流强度变化解释，二者呈正相关，但显著相关区域随季节变化有所不同。
이용 NCEP/NCAR 재분석월평균풍장자료화국가기후중심제공적중국160개기상참월평균기온자료，선용질량류함수계산방법묘술평균경권배류，이배류중심치대소표정기강도，분석1951-2010년 Hadley 배류강도추세변화급기여중국동부기온적관계。결과표명：질량류함수능교호지표정평균경권배류특정，차배류중심치대소능실제반영배류강도。근60 a래，동계북반구 Hadley 배류강도정선성증강적추세；하계남반구 Hadley 배류강도재20세기80년대초발생료유감약추세전변위현저증강추세적년대제전절。중국동부대부분지구기온적년대제변화능교호지피 Hadley 배류강도변화해석，이자정정상관，단현저상관구역수계절변화유소불동。
Based on the mean monthly wind field reanalysis data from the NCEP/NCAR and temperature data at 160 weather stations provided by the national climate center from 1951 to 2010,the mass stream function scheme and circulation center value were used to analyze Hadley circulation intensity changes and their relations with tem-perature in the eastern China.The results show that the mean meridian circulation can well be described by the mass stream function,and circulation center value can represent its intensity vividly.The winter Hadley intensity in the northern hemisphere has a linear increasing trend in the past 60 years,while the summer Hadley intensity in the southern hemisphere has a turning point of inter-decadal change from decreasing trend to increasing trend in the early of 1980s.The inter-decadal change of temperature in the eastern China could be explained well by changes of Hadley circulation intensity.Both relationships are positive,while they are different with the change of seasons in the significant correlation areas.