Oceanic "Kelvin" Wave Reaches South America
April 25, 1997
About one month after being triggered by east-blowing winds near Australia, an oceanic "Kelvin" wave reached South America. During this period, the oceanic pulse travelled over one-third the circumference of the earth!
The Kelvin wave is seen as the red and white band along the equator, indicating sea level height that is above average.
Source: Jet Propulsion Laboratory