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Currents, Gyres, & Eddies

A rapidly changing Arctic

Healy, Polarstern

A new study by researchers at Woods Hole Oceanographic Institution (WHOI) and their international colleagues found that freshwater runoff from rivers and continental shelf sediments are bringing significant quantities of carbon and trace elements into parts of the Arctic Ocean via the Transpolar Drift—a major surface current that moves water from Siberia across the North Pole to the North Atlantic Ocean.

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A tunnel to the Twilight Zone

Blue shark

Scientists track hungry blue sharks as they ride swirling currents down to the ocean twilight zone—a layer of the ocean containing the largest fish biomass on Earth

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How moored profilers work

Moored profilers travel up and down a mooring cable every five days, measuring seawater properties. (Animation by Jack Cook, Woods Hole…

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Tracking the Currents

Concern about the impacts of the Deepwater Horizon oil spill centered on the northern Gulf of Mexico, but some feared…

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Warm Eddies in a Cold Sea

(Animation by Jack Cook, Woods Hole Oceanographic Institution) By Jack Cook, Kate Madin :: Originally published online November 30, 2007

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The Ocean Conveyor

ocean conveyor

A global system of currents, often called the Ocean Conveyor, carries warm surface waters from the tropics northward. At high…

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