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Avalanche triggered by snowfall likely cause of flash flood: Geologist -GS Mudur and Piyush Srivastava

-The Telegraph

Weather scientists, however, said heavy snow had been neither forecast nor observed in Chamoli district on Friday or Saturday

An avalanche triggered by snowfall — and not glacial ice sundering — was the likely cause of Sunday’s devastation in Uttarakhand, scientists said on Monday using satellite imagery.

Weather scientists, however, said heavy snow had been neither forecast nor observed in Chamoli district on Friday or Saturday.

“A preliminary analysis suggests that heavy snowfall on Friday and Saturday led to an accumulation of a snow pile that caused an avalanche,” Santosh Kumar Rai, head of glacial studies at the Wadia Institute of Himalayan Geology, Dehra Dun, told The Telegraph.

He said the institute had sent five scientists to the site to reconstruct the sequence of events that led to the flash flood. They are expected to complete the survey in two or three days.

“We’ll have a report by the end of the week,” Rai said.

A satellite imagery analysis by scientists at the Indian Institute of Remote Sensing, Dehra Dun, suggested the accumulated snow pile was missing on Sunday, Rai said.

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