Ocean circulation refers to the large-scale, coherent movement of seawater driven primarily by wind stress, density gradients (thermohaline processes), Earth’s rotation, and basin geometry. It encompasses wind-driven gyres, western boundary currents, and the global overturning circulation that links surface and deep waters across ocean basins. Ocean circulation redistributes heat, salt, carbon, nutrients, and tracers, thereby regulating climate, biogeochemical cycles, and sea level. It is studied using in situ observations, satellite remote sensing, numerical models, and theory, with key research focusing on circulation variability, its sensitivity to forcing (e.g., greenhouse gas–induced warming and freshwater input), and associated feedbacks in the climate system.
A new study combining NASA satellite observations, ocean surveys and genetic testing of marine microorganisms found evidence that warming ocean waters may be limiting nutrient availability across much of the global ocean. ...
Earth Sciences
Jun 8, 2026
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14
A part of the Atlantic Ocean, just south of Greenland and Iceland, has been cooling off while the rest of the world gets hotter. This enigmatic patch is often referred to as the "cold blob" and scientists have been trying ...
Florida State University research published in Science Advances demonstrates a new framework for predicting the motion of kilometer-scale underwater waves that complicate satellite readings of the ocean.
Earth Sciences
Jun 3, 2026
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9
A portion of one of the most ambitious ocean monitoring networks ever built will go dark this month when scientists board a research vessel and motor off the Oregon coast to pull a research buoy from deep out of the Pacific.
Environment
Jun 3, 2026
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28
Understanding the dynamics of how water moves is deceptively simple in concept and endlessly complex in practice. Real-world marine environments are anything but controlled: weather, seasons, and geography change constantly. ...
Earth Sciences
May 29, 2026
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14
New research shows, for the first time, an unprecedented and significant warming of equatorial Atlantic upper intermediate waters during the mid- to late Holocene. The paper is published in the journal Geology.
Earth Sciences
May 20, 2026
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11
It may sound counterintuitive, but new research suggests that cleaning up air pollution could contribute to a weakening of the Atlantic Meridional Overturning Circulation (AMOC). This is the ocean current system that acts ...
Researchers at National Taiwan University and partner institutions have uncovered new evidence that Antarctic Intermediate Water (AAIW)—a distinct layer sitting 500–1,500 meters below the ocean surface—played a pivotal role ...
Earth Sciences
May 18, 2026
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12
A key Atlantic Ocean current system that helps regulate the planet's climate could weaken more than expected by 2100, with potentially devastating consequences worldwide, a new study has found.
Earth Sciences
May 10, 2026
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173
The biological productivity of the Southern Ocean in the summertime is substantially greater than many previous estimates have suggested, according to new airborne research by the U.S. National Science Foundation National ...
Earth Sciences
May 6, 2026
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14
