The complex empirical orthogonal function is employed to analyse the monthly sea surface temperature anomalies (SSTA) in the Tropical West Pacific (TWP ) for the period from 1951 to 1986. The results show that the SST...The complex empirical orthogonal function is employed to analyse the monthly sea surface temperature anomalies (SSTA) in the Tropical West Pacific (TWP ) for the period from 1951 to 1986. The results show that the SSTA in the area appear in three patterns : a quasi-stationary mode , a latitudinally propagating mode and a longitudinally propagating mode . The three modes contribute almost equally to the total variance of SST . Digital filtering , time-lag correlation, etc ., are applied to analyse the quasi-period low frequency oscillations of the modes and their relations to the southern oscillation (SO) and the West Pacific Subtropical High (WPSH).The SSTA in the TWP is different from that in an ocean current area and plays a special role in the large scale air sea interactions. Aside from being related to the SSTA in the Equatorial East Pacific, the SSTA in the TWP , on the one hand, respond to the oscillation of the global sea level pressure and influence the Subtropical High , and on the other展开更多
Analysis of COADS data(1958- 1987) showed that there is obviously interannual SST oscillation including QBO (Quasi-biennial oscillation ) and quasi-3.5 year oscilation , etc ., of the SCS (South China Sea), which is t...Analysis of COADS data(1958- 1987) showed that there is obviously interannual SST oscillation including QBO (Quasi-biennial oscillation ) and quasi-3.5 year oscilation , etc ., of the SCS (South China Sea), which is the response of the the upper mixed layer of the sea to the impact of the East Asian Monsoon anomaly . Most SST anomalies appear in the central basin of the SCS.The phase-locked phenomena linking the SST annual cycle and interannual oscillation in an important characteristic of the SCS climate . There is not only SST response to atmospheric impact , but also feedback to the air . The authors put forward a scheme of regional air-sea interaction in winter time in the SCS.展开更多
文摘The complex empirical orthogonal function is employed to analyse the monthly sea surface temperature anomalies (SSTA) in the Tropical West Pacific (TWP ) for the period from 1951 to 1986. The results show that the SSTA in the area appear in three patterns : a quasi-stationary mode , a latitudinally propagating mode and a longitudinally propagating mode . The three modes contribute almost equally to the total variance of SST . Digital filtering , time-lag correlation, etc ., are applied to analyse the quasi-period low frequency oscillations of the modes and their relations to the southern oscillation (SO) and the West Pacific Subtropical High (WPSH).The SSTA in the TWP is different from that in an ocean current area and plays a special role in the large scale air sea interactions. Aside from being related to the SSTA in the Equatorial East Pacific, the SSTA in the TWP , on the one hand, respond to the oscillation of the global sea level pressure and influence the Subtropical High , and on the other
文摘Analysis of COADS data(1958- 1987) showed that there is obviously interannual SST oscillation including QBO (Quasi-biennial oscillation ) and quasi-3.5 year oscilation , etc ., of the SCS (South China Sea), which is the response of the the upper mixed layer of the sea to the impact of the East Asian Monsoon anomaly . Most SST anomalies appear in the central basin of the SCS.The phase-locked phenomena linking the SST annual cycle and interannual oscillation in an important characteristic of the SCS climate . There is not only SST response to atmospheric impact , but also feedback to the air . The authors put forward a scheme of regional air-sea interaction in winter time in the SCS.
