Using the monthly dataset of NCEP/NCAR reanalysis, the zonal structure of the Arctic Oscillation (AO) and its correlation with the zonal-mean zonal wind and the meridional circulation are studied.

• 摘要运用NCEP/NCAR再分析月资料，分季节研究了北极涛动的纬向结构，以及与之相对应的纬向平均纬向风和经圈环流异常的空问结构特徵，并初步探讨了北极涛动的维持机制。