India’s Himalayas, North Akhand (Uttarakhand) 7 flash floods, a large amount of dust, rocks and mud directly over the dam to the river valley, downstream people, workers and a large number of people instantly extinguished, has found 26 bodies, there are still 171 people missing, the original speculation that the main cause of the flood is due to glacial fracture, but there are experts based on satellite photos study, fear of avalanches led to the upstream The weir appeared, after the weir collapse occurred flash floods.
Comprehensive Indian media reports, North Arcand state flash floods, with ice, snow, rocky rapids over the dam rushed down, so that the nearby hydropower project workers, the middle and lower reaches of the search for firewood or grazing herdsmen to extinguish the top, originally thought that the main cause of flash floods is the South Dardevi glacier (nanda devi) without warning fracture, crashing into the dam led to the collapse of the embankment, but satellite photos show that it may be caused by an avalanche led to the appearance of a weir upstream The cause.
Satellite photos show an avalanche on the nearby mountain on the 7th, a large amount of melting snow poured down, as the snow moved down the valley, mixed with mud, blocked in the narrow river channel, forming a weir, and eventually collapsed causing a flood of 3, 4 million cubic meters of water rushing down instantly, causing devastating damage to the downstream area, a member of the investigation team revealed that new evidence does make Sunday’s event look like the result of a landslide or avalanche.
Before the satellite photos came to light, the main cause of the flash flooding was pointed to a break in the South Dardevi glacier, which caused a breach after a glacial lake dumped into the dam, but the biggest problem in that theory is that scientists don’t know if such a lake exists in the area.
Recent Comments