Discovered a giant freshwater lake located underground, up to 2,800 km3 in volume

This may be an abundant source of fresh water for the arid future, when the giant freshwater lake is located close to the US coast.

Thousands of years ago, glaciers covered a large part of the surface of the Earth. The sea water recedes deeply, when low temperatures cause water to freeze into giant blocks. But when the Ice Age passed, the ice melted, the rivers swirled with water rushing on the surface of the Earth.

The sea water rises again, the fresh water is trapped under the layers of sediment buried in the ocean wave. In the 1970s, when conducting oil drilling in the ocean, large freshwater bags were discovered. It turned out to be in the salty water, a huge amount of freshwater awaits us to taste it.

Resurrection off the coast of the United States, with orange being low salinity.

According to research reports published in Nature, scientists from Columbia University and Woods Hole Oceanographic Institute spend 10 days at sea, using electromagnetic sensors to measure the sea area from New Jersey. to Massachusetts. By measuring electromagnetic waves passing saltwater and fresh water, they draw a map of freshwater storage underground in the ocean.

It turned out that the giant water tank reached 80km off the Atlantic coast, the volume of groundwater doubled the size of Lake Ontario, which reached 18,960km ² and a depth of up to 244 meters.

The underground lake starts at a depth of 183 meters in the sea, extending to hundreds of kilometers, containing up to 2,800 km ^{3 of} water with low salinity.

The water is not really pure, still contains a little salt.

"We know the existence of fresh water under those isolated areas, but have never measured its geographical factors , " said research leader Chloe Gustafson. "It can become an important resource, appearing in other parts of the world."

The size of the submarine freshwater lake indicates that it can receive fresh water from the mainland, its structure suggests that similar lakes may appear elsewhere with similar terrain.

The water is not really pure, still contains a little salt. The part of the lake near the coast can get water close to the purest freshwater. Although saline is a little bit, it can still be handled easily and transformed the giant lake into a precious freshwater source.

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