Cambridge Team Finds Deep Ocean Mixing Moves 10,000 Times Faster Than Models Predict
Updated
Updated · Yourweather.co.uk · Jul 13
Cambridge Team Finds Deep Ocean Mixing Moves 10,000 Times Faster Than Models Predict
3 articles · Updated · Yourweather.co.uk · Jul 13
Summary
Deep ocean turbulence can reshape climate within decades, not over millennia, according to a Cambridge-led study that found key ocean processes operate on human timescales.
CFC tracing showed some deep waters carried signals from Antarctica to the mid-Pacific and north Indian Ocean in about 40 years, revealing much faster transport of heat, carbon and nutrients than models capture.
A dye experiment in the Rockall Trough near the UK found water rising up to 100 meters a day—about 10,000 times faster than climate models predicted.
The mismatch matters for fisheries, food security, coastal flooding, heatwaves and polar ice melt, because poorly modeled mixing changes how the ocean stores and releases heat and carbon.
Researchers said better observations and model physics are urgently needed, warning that ocean-monitoring capacity remains vulnerable even after a reversal of plans to dismantle the $368 million Ocean Observatories Initiative.