Teleconnections and Features of Circulation in the Pentad Mean 500 hPa Height Field during the Northern Hemisphere Summer
北半球夏季500hPa候平均高度场的遥相关和环流特征

In this paper, the teleconnections of the pentad mean of 500hPa height field during the Northern Hemisphere summer are analysed based on data of ten years (1980-1989). Two teleconnection patterns ( Eastern Asia/Pacific ( BAP) and Western Burasia( WE) pattern) and Western Asia/Pacific/Atlantic oscillation are found. The spatial and temporal distribution of the general circulation at 500hPa in summer is studied by the method of principal component analysis.