Higher-than-normal Sea Level
June 25, 1997
In June, the white area of high sea level began to spread along the coasts of both the North and South America.
Because higher-than-normal sea level corresponded to warmer-than-normal water, the fishermen in Peru began to feel the impact: the warm water prevented upwelling of cold, nutrient-rich water that is necessary for abundant fish harvests.
Source: Jet Propulsion Laboratory