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Sea Level Rise is Accelerating
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Published February 20, 2018
The acceleration has been driven mainly by increased ice melting in Greenland and Antarctica, and it has the potential to double the total sea level rise projected by 2100.
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New Seafloor Map Helps Scientists Find New Features
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Published January 13, 2016
The recent discovery of the Mammerickx Microplate was made possible by new satellite-derived maps of the ocean floor.
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The Seafloor Focuses and Merges Tsunami Waves
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Published March 12, 2012
Even at great distances from their source, tsunami waves can grow by being focused and steered by underwater ridges.
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La Nina Strengthens in Autumn 2007
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Published November 10, 2007
Continuing a pattern that had been building for nine months, La Niña strengthened in the fall of 2007.
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Satellites Detect Deep-Ocean Whirlpools
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Published March 23, 2006
Submerged in the Atlantic Ocean off the coast of Spain and Portugal are giant, salty whirlpools of warm water. These deep-water whirlpools are part of the ocean’s circulatory system, and they help drive the ocean currents that moderate Earth’s climate. Warm water ordinarily sits at the ocean’s surface, but the warm water flowing out of the Mediterranean Sea is so salty (and therefore dense) that when it enters the Atlantic Ocean at the Strait of Gibraltar, it sinks to depths of more than 1,000 meters (one-half mile) along the continental shelf. This underwater river then separates into clockwise-flowing eddies that may continue to spin westward for more than two years, often coalescing with other eddies to form giant, salty whirlpools that may stretch for hundreds of miles. Because the eddies originate from the Mediterranean Sea, scientists call them “Meddies.”
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Hurricane Rita Roars through a Warm Gulf
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Published September 23, 2005
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