中文摘要：

利用1950—2002年间的海面温度（SST）资料，研究了东太平洋暖池的形态和热状态特征，并探讨了暖池变异与思索（ENSO）的关系。结果表明，暖池形态和热状态均有明显的季节特征和年际变化，其年际变化与ENSO循环相联系；暖池热含量、面积和南界与ENSO有着十分密切的相关关系。合成分析结果显示，在厄尔尼诺（E1 Nino）事件爆发的前一年，暖池热含量偏少，面积偏小，南界偏北，而在事件爆发后，暖池热含量增多，面积增大，南界南移；在拉尼娜（La Nina）事件期间，暖池热含量、面积和南界的演变趋势基本与E1 Nino事件期间的情况相反。东太平洋暖池的经向变异可能对ENSO暖（E1 Nino）、冷（La Nina）事件的发展有重要作用。

英文摘要：

The major oceanographic characteristics of the eastern Pacific warm pool（EPWP） and the relationship between the variation in the EPWP and ENSO based on the SST data from 1950 through 2002 are analyzed. The results show that the form and thermal state of the EPWP obviously exhibit the seasonal and interarmual variations related to the ENSO cycle. The heat content, the area and the southern edge of the EPWP are all closely related to the ENSO. The composite analysis indicates that the heat content decreases, the area lessens and the southern edge is located at the northernmost position in the preceding year for E1 Nino onset, while the heat content increases, the area enlarges and the southern edge shifts to the southernmost position after E1 Nino onset; during the La Nina, the variation trends of the heat content, the area and the southern edge of the EPWP are contrary to those during the E1 Nino. Besides, the meridional displacement of the EPWP may play an important part in the development of the ENSO.