摘要
使用NCEP1°×1°周平均表层海温资料（1982－1994）对南海与其邻近西太平洋进行谐波分析，结果发现对于SST的年变化，南海与其邻近西太平洋海域位相连续；而对于准两年变化（QBO），南海与其邻近西太平洋海域位相不连续。并据E1Nino年与LaNina年对此现象的成因做了进一步分析。
In this paper, the 1°×1°/longitude×latitude weekly mean N data (1982-1994) of American National Chntor of Environrnnt thediction (NCEP) have been analyzed using the harmohic analysis method. Two cross sechons are chosen along latitud 14.5°N and 7.5°N from 100°E to 140°E for analyzing the spatial SST Phase evolution in the spatial domain of the South China Sea (SCS) and its neighboring West Pacific. Moreovet, two time domain 1982-1983 and 1988-1989 are selected for analyzing the typical events of El Nino and In Nina The results are summarized as follows.(1) The annual cycle of N both in the SCS and its neighboring West Pacific are continuous in the phase domain.(2) The interannual variation of SST in both the SCS and its neighboring West Pacific are discontinuous in the phase domain. SST anornaly (m was posihve in 1982-1983 wintet, while SSTA was negative in 1988- 1989 winter. TReversibly, SSTA in the West Pacific is negative in 1982-1983 wintef, but posihve in 1988-1989 winter. The aboe result describes the SSTA features of E1 Nino and La Nina events. The reason is related to the spatial geographical distribution of the semi-closed SCS and the open West Pasific region.(3) The phase difference of SST tetween the SCS and its neighboring West Pasific would cayse the atmospheric waves in the tropical West Pecific because of the noulinear air-sea interaction.
出处
《海洋与湖沼》
CAS
CSCD
北大核心
1999年第6期679-686,共8页
Oceanologia Et Limnologia Sinica
基金
国家自然科学基金!49676276
国家教委博士点基金!96062330
