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采用复鲜驻亚交函数展开（CEOF）等方法研究了热带海洋海表温度异常（SSTA）和北半球500hPa高度场异常（H500）的甚低频（LF）和准两年（QB）两种低频振荡的空间振幅和位相变化，发现SSTA变化信号在热带西太平洋最先出现，其后是热带中东太平洋，最后是热带印度洋和南海。副热带中西太平洋H500滞后于热带中东太平洋SSTA1-2月，H500的LF分量从副热带中西太平洋经西北太平洋至北美洲呈正负相间的驻波型振荡，而从H500的QB分量在该区域则呈现由低纬度向中高纬度传播的行进波特征。H500和SSTA的LF和QB分量极值位相都呈现一定的季节锁定特征，极端异常事件的出现与两种低频振荡的位相季节锁定的共性有关。
The effects of very low frequency (LF) and quasi-two-year (QB) low-frequency oscillations on the tropical oceanic sea surface temperature anomaly (SSTA) and the 500hPa geopotential anomalies (H500) It is found that the SSTA signal first appears in the tropical western Pacific, followed by the tropical central and eastern Pacific and finally the tropical Indian and South Seas. The subtropical Central-Western Pacific H500 lags behind SSTA1-2 in the tropical central and eastern Pacific. The LF component of H500 oscillates positively and negatively from the western and western Pacific to the North American Pacific Northwest while the QB component from H500 presents in this region from The characteristics of the traveling wave propagating from low latitudes to middle and high latitudes. H500 and SSTA have some characteristics of seasonal locking in the extreme phase of LF and QB components. The occurrence of extreme anomalies is related to the commonness of the phase locking of two phases of low frequency oscillation.