热带太平洋海平面年际和年代际变化研究进展

回顾热带太平洋对海平面长期趋势有重要影响的海平面年际和年代际变化的相关研究,总结包括近期提出的中部型厄尔尼诺在内的2种类型厄尔尼诺对热带太平洋海平面年际变化的影响,揭示了热带太平洋海平面年代际变化与信风年代际变化之间的紧密联系。指出赤道信风的增强对近期热带太平洋海平面变化格局的形成有决定性作用,厄尔尼诺强度的减弱对这种格局有贡献,而拉尼娜的影响有待深入研究。研究资料的局限性导致年代际变化的定量研究成果较少,在研究海平面年际和年代际变化时应用的热通量评估模型有待改进。

Research progress of inter-annual and multi-decadal sea level variability in tropical Pacific Ocean

Research on the inter-annual and multi-decadal sea level variability which may influence the long-term trend of the sea level change in the tropical Pacific Ocean was reviewed, the effect of two types of El Niñ o events on the inter-annual sea level change in the tropical Pacific Ocean was summarized, and the close relationship of the multi-decadal changes in trade winds and sea level in the tropical Pacific Ocean was revealed. It is pointed out that the pattern of recent sea level change in the tropical Pacific Ocean is determined by the trade wind intensification, and the decrease of strength of El Niñ o events is favorable to this pattern, while the effect of La Nina events needs to be further studied. Data limitation leads to fewer quantitative research achievements of the multi-decadal change, and the heat flux model for study of inter-annual and multi-decadal sea level variability needs to be improved.