Teleconnections between the Northern Oscillation and extratropical atmospheric circulation of the Northern Hemisphere Part I: Basic structures
北方涛动同北半球温带大气环流的遥相关(一)——基本结构

Basic structures of teleconnections between the Northern Oscillation, its associated North Pacific sea surface temperature (SST) and sea level pressure and 500 hPa geopotential height fields of the Northern Hemisphere are investigated by using seasonal-mean data spanning years 1951-1980 (120 seasons in all). The results are compared with those of the Southern Oscillation and the eastern equatorial Pacific SST. It is found that the SST anomalies in the Namias and California current regions of the North Pacific are closely associated with anomalies over the mid- and high-latitudes of the Northern Hemisphere, especially the Pacific/North America (PNA) and the North Atlantic Oscillation (NAO) anomaly patterns are highly related to the Northern Oscillation and SST anomalies in the above two regions. The Southern Oscillation and the equatorial Pacific SST anomaly are highly related to the North Pacific Oscillation ( NPO) or the Western Pacific (WP) anomaly pattern, but their relations to PNA and NAO anomaly patterns are weaker in comparison with the Northern Oscillation and SST anomalies of the Namias and California current regions.