Clearly the huge river disappeared in only 4 days after the glacier melted

It is concerned that abnormal weather will occur due to global warming, but it turned out that the melting of the glaciers caused a phenomenon in Canada that a river with a width of 150 meters dried up in only 4 days It was.

Receding glacier causes immense Canadian river to vanish in four days | Science | The Guardian
https://www.theguardian.com/science/2017/apr/17/receding-glacier-causes-immense-canadian-river-to-vanish-in-four-days-climate-change

Retreating Yukon glacier makes river disappear - North - CBC News
http://www.cbc.ca/news/canada/north/slims-river-dries-yukon-kluane-glacier-1.3639472

The slims river flowing through the Slims Valley in Canada has disappeared. The Slims River northwards of Slims Valley is a river that was the source of Lake Kluen 19 kilometers away. The water of the Slims River was flowing into the Bering Sea via Kluen Lake, the Yukon River.


This is around Google Maps. The upper right is Lake Kruien, and the slims river is flowing from the lower left toward there.


Jeff Bond of Yukon Geological Survey noticed that the Slims River dried up in the spring of 2016. According to Mr. Bond, drying of the Slims River is a phenomenon that happened for the first time in 350 years.

Estuary in the south of Lake Kruien. The place where the Slims River flowed in is completely dried up.


Dr. James Best, a geologist at the University of Illinois, conducted an on-site survey of the Slims River, so far the river that was crossed by a small boat has dried up, whereas the point where it was a deltasm is sandstorms blowing up, incredible It seems that the landscape has changed dramatically.

Observation from a helicopter and observation using a drone showed the difference in size between the Slims river flowing north of Slims Valley and the Arsek River flowing south. The river, which had been of comparable size in the past, I understood that the Arsek River has changed from 60 times to 70 times the size of the Slims River. From the data, it was also found that the flow of the Slims River sharply declined from 26th to 29th May 2016, the flow of the Slims River, which had been northward, changed to the Alsek River, flowing south and flowing to the Pacific Ocean It became clear that it was.


Orange is the conventional flow, red is the current flow.


It is thought that it is a glacial retreat due to global warming that brought about a sudden change that the river disappears in just a few days. For several hundred years, the water melting out of the Cascauguen glacier flows into the Bering Sea by flowing along the Slims River and the Yukon River. However, when the glacier melts rapidly in the spring of 2016, it is thought that it is caused by the fact that the melted water enters the glacier and enters the tributary Arsek River as a new vein.


Dry places have already begun to appear on Lake Kruien, and it is expected that the water level will drop as the supply of water from the Slims River has been cut off.


The phenomenon that the flow of river changes due to the melting of glaciers as seen in Slim's Valley is "Stream capture"Or"River piracyIt is known as a common natural phenomenon. However, the rapid change such as the dramatic change of river flow in just 4 days is not caused by general natural variation, but is attributed to human-induced climate change caused by human activity . Glacier melting can occur also in the Himalayas, the Andes mountain range, Alaska and other places, so sudden environmental changes such as "annihilation of the Slims River" can occur on a global scale. It is pointed out that sudden changes may greatly affect the animals and plants in the area and the living environment of humans.