Figure 1 Surface chlorophyll concentration observed by satellites in the second week of October 2010 in the Pacific basin (IMAGE)
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In the autumn of 2010, a La Niña event is formed in the tropical Pacific, characterized by a high Chl concentration. At the same time, tropical instability waves (TIWs) are active, which gives rise to large CHL perturbations as clearly observed in the eastern-central equatorial Pacific. These multiscale CHL perturbations exert effects on penetrative solar radiation in the upper ocean.
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