As the warming progresses ... "Disaster-class heavy snowfall in the mountains on the Japan Sea side" Research Results December 17th 4:08
As global warming progressed, research results showed that heavy snowfall would increase, mainly in the Japan Sea side of eastern Japan. Especially in the mountainous area, there is a risk that heavy disaster-level heavy snow once every 40 years may be once every 8 to 9 years.
Research group of Tohoku University's assistant professor Takahiro Sasai simulated how snow would fall when the global warming progressed and the global average temperature rose 4 degrees.
As a result, the amount of snowfall during the “heavy snowfall” when the most snow falls in one year decreases on the Pacific coast and coastal areas of the Sea of Japan, but rather increases in the mountains on the Sea of Japan side, especially in eastern Japan. It was.
Especially in the mountainous area from Gifu Prefecture to Niigata Prefecture, disaster-level heavy snow of 60 cm or more per day, which is once every 40 years, is once every 8 to 9 years.
The cause is that while the temperature near the sea surface rises due to global warming and the amount of water vapor in the air increases, the temperature of the cold air does not rise so much, so the amount of snow increases.
Assistant Professor Sasai says, “In light of climate change, especially when observing the great cold wave, it is necessary to be wary of heavy snowfall in the mountains on the Japan Sea side.”