A delicate Antarctic balance with global climate implications
New findings about ocean processes in the Antarctic show melting ice shelves and changes to sea ice could have catastrophic implications for the global climate.
Ocean mixing is a physical oceanographic phenomenon encompassing the turbulent and wave-driven processes that irreversibly redistribute heat, salt, momentum, and biogeochemical tracers within the ocean interior and boundary layers. It is mediated by shear instability, double-diffusive convection, internal waves (including internal tides), and boundary-generated turbulence, and is quantified using parameters such as diapycnal and isopycnal diffusivities. Ocean mixing regulates the vertical exchange between the surface and deep ocean, controls stratification and overturning circulation, influences climate-relevant heat and carbon storage, and sets nutrient supply to the euphotic zone, thereby coupling physical dynamics with marine biogeochemistry.
New findings about ocean processes in the Antarctic show melting ice shelves and changes to sea ice could have catastrophic implications for the global climate.
Earth Sciences
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In the coming decades, climate change is likely to lead to a loss of sea ice in and an influx of warmer water to the Arctic Ocean, affecting the ocean's vertical circulation. Brown and colleagues recently investigated the ...
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Environment
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Researchers at the University of California, Irvine and NASA's Jet Propulsion Laboratory have identified stormlike circulation patterns beneath the Antarctic ice shelves that are causing aggressive melting, with major implications ...
Earth Sciences
Nov 18, 2025
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Melting ice in the Arctic is causing an increasing amount of freshwater to enter the North Atlantic, which is expected to result in a weakening of the Atlantic overturning circulation. However, many modeling studies make ...
Earth Sciences
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Earth Sciences
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A study published in Nature Climate Change by an international team of scientists from the IBS Center for Climate Physics (ICCP) at Pusan National University in South Korea, presents new evidence that ocean turbulence and ...
Earth Sciences
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About 71% of Earth's surface is covered by the vast oceans. When winds blow over the sea surface, they transfer energy to the water, creating waves. Some of these waves, under the force of strong winds, break and produce ...
Earth Sciences
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142