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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 the data of temperature, salinity and current at the 140 ° E section of the 4 surveys from 1985 to 1988, it is pointed out that the E1 Ni (?) O event from 1986 to 1987 originally accumulated in the upper troposphere of the equatorial Pacific Ocean Water decreases, sub-surface water and middle layer water significantly uplift, thus changing the tropical sea temperature and salinity structure. In addition, the near-disappearance of the southern equatorial stream and the marked decrease of the core velocity of the equatorial underflow are the major changes in ocean currents caused by this E1 Niño event. Combined with the change of the surface dynamic height distribution at 137 ° E before the E1 Ni (o) o event of 1982-1983, the oceanographic conditions for the occurrence of the next E1 Ni (?) O event in the equatorial Pacific Ocean are preliminarily considered.