the EU project involves researchers from ten European countries and other scientific partners, said experts on Tuesday at the General Assembly of the European Geosciences Union (EGU) in Vienna. Researchers at the University of Bern.

Where to be won the ice?

After a long search for a suitable place, the scientists had chosen “one of the coldest, driest and most lifeless places on earth,” it said. “Little Dome C”, approximately 30 kilometres or a few hours by snow mobile from the Concordia research station in the Antarctic, far, wrote, the University of Bern on Tuesday. In this Region, the temperature spent the year at minus 54.5 degrees, and increases never about minus 25 degrees. The rainfall was extremely low.

the EU hoped the green light would be won at the “Little Dome C” at the end of 2021, the first Ice cores by drilling. 2024 a depth of 2730 meters should be achieved, where the ice is 1.5 million years old.

changes in climate to determine

“With the help of air that is trapped in the ice in small bubbles, we can determine how the concentrations of CO2 and methane have changed over time,” said Hubertus Fischer of the University of Bern according to a communication from his University.

is Currently being developed in Bern, a completely new analysis method, it was called. All greenhouse gases can be investigated at the same time and the work from the Samples extracted air and then for further research kept.

The researchers hope the analysis of the new Eisbohrkerns information on the question of why the exchange of Cold and warm periods has changed. “More than 1.2 million years of such a cycle lasted only about 40’000 years, triggered by regular Changes in the tilt of the earth’s axis,” explained the project coordinator, Olaf iron from the Alfred Wegener Institute in Bremerhaven.

Later, have used a rhythm in which all the 100’000 years, cold periods and warmer periods would have to be replaced. The oldest ice recovered about 15 years ago, only about 40 kilometres away – is 800’000 years old.

(SDA)

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