An international team of scientists from several universities in Europe, Japan and the United States completed the data collection and analysis of the cores in the glaciers of Greenland.
According to the research specialists reported two very large temperature jumps that occurred during the last Ice Age. Experts say that these races had a significant impact on the circulation of air flow on the planet, reports the resource. Sybersecurity.
Samples of ice have shown that in the northern hemisphere of the planet were two significant periods of warming - the first took place 14,700 years ago, when only 50 years of global temperature jumped immediately to the six degrees, and then within a few thousand years, once again fell. The second period of warming recorded on the basis of studies of ice age is 11,700 years old.
Along with global warming, glaciers in Greenland have preserved a massive reorganization is also evidence of atmospheric circulation in the Northern Hemisphere. The study's authors say that in each of two periods of rapid warming on the reorganization of the air flows only took a couple of years.
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Scientists hope that new research will help professionals better understand the climatic features of the planet and create a more accurate climate models, reflecting the increase in global temperature.
In the study of glaciers, researchers measured the levels of dust particles preserved in the ice, as well as stable isotopes of water in various layers of ice. According to the authors, the first abrupt warming began 14,700 years ago and lasted for as long as 12,900 years ago is not cooling and began some 1200 years everything was back to the old marks.
Source: focus. ua.
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