北太平洋海温与南方涛动的相关分析

有关热带太平洋的海洋学和气象学近年来已列为理论和“诊断”研究的课题之中。从事这方面的大量工作是探讨埃尔尼诺和南方涛动(SO)相互作用的复杂机理问题。本文着重讨论南方涛动与北太平洋海温相关场的时滞关系以及它们的时空变化,表明在不同海域、不同季节中都存在较大的差异。

THE CORRELATIVE ANALYSIS BETWEEN THE SOUTHERN OSCILLATION AND THE SEA SURFACE TFMPERATURE OVER THE NORTH PACIFIC

Based on the monthly mean data oi 1949-1982, the correlations between the sea surface temperature (SST) over the North Pacific and the Southern Oscillation (SO) Index, including the time-lagging and time-advancing by 12 months, have been computed. The effect of SO and the feedback of the equatorial sea surface temperature are discussed in this paper. It is found that the characteristics of the correlation field between them are different for various seasons and regions. Among them, the correlation between SO and SST of the East equatorial pacific ocean is highest. The effect of SO on SST in the equator area is more significant in winter than that in summer. However, the biggest effect in the westerlies flotation region is found in spring and the next is in summer. As for the feedback of the equatorial sea surface temperature to SO the strongest is in summer (June and July).