On February 26th, a new study published in the journal Geophysical Research Letters by the Scripps Institute of Oceanography in the United States found one reason why the Arctic is warming faster than any other part of the planet by computer simulations and observations of changes in the Arctic Ocean, according tomedia reports.
A team led by Emma Beer of the Scripps Institute of Oceanography observed changes in the Arctic Ocean, which is covered by sea ice for most of the year, but researchers have found an unusual situation.
Although the Arctic Ocean is covered by sea ice all year round, the sea indicates that the temperature has been around the freezing point. But because the Arctic Ocean is connected to the Pacific and Atlantic Oceans, the deep waterises relative to warmth, and heat continues to pass upward from the deep water.
Scientists have found that the waters in the arctic ocean have become warmer because of climate change, but the near-surface water beneath the sea ice is still close to freezing. The increase in temperature differences has led to more and more heat being transferred upward by the deep water, which is responsible for increasing global warming in the Arctic by about 20 percent.
The researchers say that although we have previously found mechanisms associated with the surface and atmosphere that cause the Arctic amplification effect. But our new study finds that when the Arctic is covered with sea ice, the ocean is also a fundamental cause of the Arctic amplification effect.