An oceanic current that flows from west to east, approximately along the Equator, in the Atlantic, Indian, and Pacific Oceans. There is an accumulation of water (and higher levels) on the western sides of the main oceanic basins, partly because the Ekman effect is absent at low latitudes, and also because water is displaced northwards by the strong, permanent subtropical anticyclones in the southern hemisphere. Water flows eastwards down the hydraulic gradient. The Pacific Equatorial Counter Current is particularly strong during an El Niño event. See also Cromwell Current.
Subjects: Meteorology and Climatology.