Applications
Salinity at the equator
Left: Average SMOS surface salinity around the Equator (2ºS–2ºN) from 2010 to 2015. The fresh pool (in blue and green) in the western equatorial Pacific Ocean extends east during El Niño events (early 2010 and 2015) and is reduced to the west during La Niña events (end of 2010 and 2011). Right: the ‘Niño 3.4 Index’, based on sea-surface temperature observations, which indicates El Niño events in red and La Niña events in blue.
