Monthly Southern Oscillation Index from 1866 to 1997
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The SOI is defined as the normalized pressure difference between Tahiti and Darwin. There are several slight variations in the SOI values calculated at various centres. Here we...
南方涛动指数（Southern Oscillation Index，SOI）被定义为塔希提岛与达尔文港之间的归一化气压差值。不同科研中心计算得到的SOI数值存在若干细微差异。在此我们……
