摘要
本文根据1985—1988年4次考察中140°E断面的温、盐度和海流资料指出,由于1986—1987年E1 Ni(?)o事件的出现,因而原先积聚在西太平洋赤道海域的上层暖水减少,次表层水和中层水显著抬升,从而改变了热带海域的温、盐度场结构。此外,南赤道流几乎消失以及赤道潜流核心层速度的明显减弱,是这次E1 Ni(?)o事件造成的海流方面的重要变化。结合1982—1983年E1 Ni(?)o事件爆发前137°E断面表层动力高度的分布变化,可初步认为西太平洋赤道海域已具备了产生下一次E1 Ni(?)o事件的海洋学条件。
Based on data of observed temperatures, salinities and currents at 140癊 section of four cruises in 1985-1989, their variabilities in the Equatorial Western Pacific Ocean during 1986-1987 El Nino event have been analysed. Due to run off of surface warm water and the raising of subsurface and midlayer v/ater, the temperature and salinity field structures changed, the South Equatorial Current almost disappeard and speed in the Equatorial Undercurrent Core weakened notably. Based on data analysis, we preliminary consider that the Equatorial Western Pacific Ocean already posseses oceanographical conditions for the formation of the next El Nino event.
出处
《热带海洋》
CSCD
1991年第1期40-47,共8页
关键词
温度
盐度场
流场
太平洋
厄尔尼诺
El-Nino, temperrature field, salinity field, current field, Equatorial Western Pacific
