Regarding the glacier collapse that occurred in northern India, experts said that a large-scale glacier collapse occurred first from satellite photographs taken before and after, and then for some reason a violent debris flow was induced to spread the damage. I am analyzing.
According to the state government, the collapse of a glacier in northern India, which is lined with the Himalayas, has killed 32 people so far, and the safety of about 170 people is unknown.
Comparing the satellite photographs taken on the 6th the day before the glacier collapse and the 7th immediately after the glacier collapse, the snow-covered mountain surface is exposed over a wide area after the collapse, and the valley that follows it is blurred brown. I am.
Professor Koji Fujita of Nagoya University, who is familiar with Himalayan glaciers, said in an online interview with NHK, "I have the impression that a lump of ice stuck to a steep slope suddenly peeled off. It can be seen along the valley. I think that something like a glacier fell on a fairly large scale due to the smoke rising from the flowing landslides, "he said, inducing a violent landslide for some reason after the large-scale collapse. I analyzed it.
He added, "It is thought that collapsed glaciers and sediments have accumulated somewhere and the water that has accumulated there has collapsed, but at this stage it is unknown why the debris flow was of this magnitude."
In addition, Professor Fujita said that the glaciers in the Himalayas are shrinking due to the effects of global warming. "Although it cannot be said unconditionally, what was frozen at high altitudes melts due to the effects of warm temperatures, and the joint surface between glaciers and rocks. May loosen and collapse, "he said, pointing out that the effects of global warming could increase glacier collapse.