但在二月初，澳大利亚东北部出现了强烈的海平面异常(中间球面所示)。
But in early February, a strong sea level anomaly appeared northeast of Australia (center globe).
通过特征指数计算分析发现，各海域海平面异常特征指数存在较为明显的年际变化规律。
Passing the calculation analysis of the characteristic index number, we discover that there is obvious annual variety regulation of it on the all sea region.
从这些球面可以看出海平面的高度异常，红色意味着比平均值高，而蓝色则指比平均值低。
The globes show sea surface height anomalies, which means places where the water surface is higher (red) or lower (blue) than average.
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