The Atlantic’s biggest secret: Scientists discover a giant invisible ocean below the seafloor for years
Oceanographers studying the Atlantic Ocean are revisiting an old assumption using newer data and slower, more detailed analysis. For decades, researchers believed the Atlantic lacked a true equatorial water mass, unlike the Pacific and Indian oceans. Instead, water in this zone was thought to be an extension of South Atlantic Central Water. Using temperature and salinity measurements from thousands of Argo floats, scientists have now found a clearer pattern. In the upper 2,000 metres of the Atlantic, especially near the equator, water properties show a consistent structure that does not fully match known categories. The findings suggest that a distinct body of water exists within the equatorial Atlantic thermocline, shaped by mixing rather than direct formation. This adds a new layer to how the Atlantic Ocean is understood and classified.
A vast underground ocean has been lurking beneath the Atlantic for millions of yearsOcean water is not uniform. Scientists define water masses by sha..
