Internal tides, waves below the ocean's surface that propagate at tidal frequencies, play an important role in ocean mixing but can be difficult to detect and study. Researchers find they can detect these waves with seismic imaging....

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Staff from the Office of Response and Restoration are on-scene near Port Arthur, Texas, where a major oil spill occurred on Saturday, January 23....

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They are invisible and very difficult to measure but no life in the oceans would be possible without them. They are trace metals, such as cadmium, copper or iron, dissolved in seawater. Their precise origin and distribution in the world’s ocean, in particular in the deep sea, are not well known. Now, an international research program aims to close this gap of knowledge....

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A recent special edition of the Elsevier journal Ocean Engineering provides an analysis of the impact of Hurricane Katrina and an overview of the lessons learned in the aftermath of the disaster....

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A major increase in maximum ocean wave heights off the Pacific Northwest in recent decades has forced scientists to re-evaluate how high a "100-year event" might be, and the new findings raise special concerns for flooding, coastal erosion and structural damage....

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Recent observations show that Beaufort Sea ice was not as it appeared in the summer of 2009. Sea ice cover serves as an indication of climate and has implications for marine and terrestrial ecosystems. In early September 2009, satellite measurements implied that most of the ice in the Beaufort Sea either was thick ice that had been there for multiple years or was thick, first-year ice. However, in situ observations made in September 2009 show that much of the ice was in fact "rotten" ice -- ice that is thinner, heavily decayed, and structurally weak due to a uniform temperature throughout....

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A bubble scientist is studying how to detect and count ocean bubbles of different sizes to help scientists in other disciplines create more accurate models. Ocean bubbles play a role in cloud formation and climate change, and they are important when studying ocean acoustics....

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MEET: Mark Monaco, Acting Director, Center for Coastal Monitoring and Assessment....

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Most people are surprised to learn that, just as the surface of the Earth is not flat, the surface of the ocean is not flat, and that the surface of the sea changes at different rates around the globe. For instance, the absolute water level height is higher along the West Coast of the United States than the East Coast....

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To the casual observer in the Gulf of Mexico, the seemingly sluggish red grouper is more of a couch potato than a busy beaver. But a new study reveals the fish to be both architect and ecosystem engineer....

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