Denmark Strait overflow
Description
The Denmark Strait overflow is an undersea overflow located in the Denmark Strait between Greenland and Iceland. The overflow transports around 3.2 million m3 (110 million ft3) of water per second, greatly eclipsing the discharge of the Amazon River into the Atlantic Ocean and the flow rate of the former Guaíra Falls. The descending column of water is approximately 200 m (660 ft) wide and 200 m (660 ft) thick and descends over a length of around 1,000 km (620 mi).