北极海冰与埃尔-尼诺

THE SEA ICE OF NORTH POLE (SINP) AND EL-NIO

本文通过简单的曲线对应关系分析指出,北极海冰与埃尔-尼诺现象存在着一定的对应关系:在埃尔-尼诺发生前半年的冬季,欧洲附近（Ⅳ区）北极海冰指数（DQ％值）易出现峰值或处于增长阶段,在埃尔-尼诺发生年的夏季,北美中西部附近（Ⅱ区）的北极海冰指数也是易出现峰值或处于增长阶段。同时本文还给出了北极海冰（Ⅱ区和Ⅳ区）与埃尔-尼诺相联系的可能的物理机制,指出:埃尔-尼诺发生前半年的冬季Ⅳ区海冰是埃尔-尼诺的一个强迫源,而埃尔-尼诺年夏季Ⅱ区海冰是对埃尔-尼诺强迫的响应结果。

In this paper, the basic curve matching analysis shows that there is certain corresponding relationship between SINP and EI Nino. In the winter of the firt half year of the El Nino occurrence, the index (percentage of DQ) of SINP near Europe (region IV) is often in a peak value or in an increasing stage,and in the summer of the El Nino year, the index of SINP near the midwest part of the North American (region II) is also often in a peak value or in an increasing stage. Meantime, this paper gives the possible physical mechanism connecting SINP with El Nino, and points out that in the winter of the first half year of the El Nino the SINP of region IV is one of the forcing sources,and in the summer of the El Nino year the SINP of region II is the result of response to the El Nino forcing.