The Southern Oscillation Index (SOI) has fluctuated over the past two weeks, but remains strongly positive.

南方涛动指数（SOI）的波动在过去两个星期仍然为高正值。

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The first principal component of the Southern Oscillation Index (SOI) is used as the intensity of annual SO.

用南方涛动指数(SOI)的第一主成分表示年涛动强度。

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The climate pattern known as the El nino-southern Oscillation, or "ENSO" for short, is the biggest cause of large-scale climate variability in the tropics.

被称作“厄尔尼诺南方涛动”的气候模式是热带地区大面积气候变化的最大原因。

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The El Nino Southern Oscillation (ENSO) is generally thought to be the main reason for inter-annual warming or cooling.

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La Nina is the cold cousin of El Nino - the two collectively making up the El Nino Southern Oscillation (ENSO).

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Much of the variability in global TC ACE is explained by the concomitant changes or evolution in the character of the El Nino Southern Oscillation (ENSO) and Pacific Decadal Oscillation (PDO).

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