垂直低分辨率GCM模式大气平均经圈环流的诊断  

DIAGNOSIS OF MEAN MERIDIONAL CIRCULATION OFTHE MODEL ATMOSPHERE IN THE GCM WITH LOW RESOLUTION VERTICALLY

作　　者：王盘兴[1] 

机构地区：[1]南京气象学院气象系

出　　处：《南京气象学院学报》1994年第2期200-204,共5页Journal of Nanjing Institute of Meteorology

基　　金：国家自然科学基金项目及中国科学院大气物理研究所LASG项目联合资助

摘　　要：以ＩＡＰ２－ＬＧＣＭ为例，给出垂直低分辨率ＧＣＭ模式大气平均经圈环流质量流函数的一个计算方案。结果表明，模式大气的Ｈａｄｌｅｙ环流季节变化与实际大气相一致。ＥｌＮｉｎｏ年模式大气平均经圈环流中可分离出一个与ＥｌＮｉｎｏ型ＳＳＴ异常关系密切的异常经圈环流，它导致平均Ｈａｄｌｅｙ环流向北半球盛夏型转变的滞后。A scheme is proposed for calculating the streamfunction of the mass in meanmeridional circulation in the GCM of low resolution vertically. Results show that for the model Hadley circulation,its seasonal change is identical to that of the real atmosphere.It isfound that,separated from the mean meridional circulation of the model atmosphere in the ElNino year can be an anomalous circulation in close relation to the El Nin-type SST anomaly,which gives rise to the lagging transition of the average Hadley circulation into the northernmid summer type.

关 键 词：大气环流 经圈环流 低分辨率 

分 类 号：P448[天文地球—大气科学及气象学]