Various statistical research reveals that there is significant correlation between North Hemisphere Circulation and SSTA in West Wind Drift region, as well as in tropical eastern Pacific, which are the two key regions in Pacific.

• 中纬度西风漂流区以及热带中东太平洋SSTA与北半球大气环流存在显著的相关，是太平洋最主要的两个关键区。