IMPACTS OF KUROSHIO SSTA ON STORM TRACK OVER NORTH PACIFIC IN WINTER

Singular value decomposition (SVD) is conducted for 500 hPa filtered potential height variance of 15 storm track regions and the SST over North Pacific in winter. The results show that the second couple of mode obtained from SVD depicts the effect of Kuroshio SSTA on the interannual variability of storm. Furthermore, composite analysis indicates that the SSTA over Kuroshio in winter can give rise to or invigorate WP teleconnection response pattern of 500 hPa height field which, in turn, exerts crucial influence on the interannual variability in vigor and meridianal displacement of the storm track over North Pacific, especially over its central and western parts.